Attachment 867916 Details for Bug 1070151 – File: dmesg

File: dmesg

dmesg (text/plain), 249.49 KB, created by Piotr Baranowski on 2014-02-26 10:32:57 UTC

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Description:

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Creator: Piotr Baranowski

Created: 2014-02-26 10:32:57 UTC

Size: 249.49 KB

patch

obsolete

>[10433.730086] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730112] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730141] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730167] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730168] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730194] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730221] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730222] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730250] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730251] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730278] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730305] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730332] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730334] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730360] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730387] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730415] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730416] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730443] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730470] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730471] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730497] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730498] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730526] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730527] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730553] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730555] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730582] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730608] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730610] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730636] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730637] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730664] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730692] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730718] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730719] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730745] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730747] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730773] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730774] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730802] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730803] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730829] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730831] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730856] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730857] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730884] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730885] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730911] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730913] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730940] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730941] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730967] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730968] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.730994] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.730995] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731023] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731024] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731051] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731052] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731078] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731080] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731106] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731107] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731133] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731134] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731161] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731162] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731188] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731190] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731215] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731217] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731244] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731245] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731272] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731273] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731300] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731301] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731327] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731328] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731354] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731355] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731382] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731383] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731409] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731410] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731438] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731439] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731465] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731467] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731493] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731494] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731521] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731522] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731548] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731549] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731577] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731578] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731605] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731606] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731632] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731633] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731659] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731660] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731686] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731687] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731713] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731714] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731741] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731742] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731768] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731770] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731796] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731797] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731823] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731825] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731850] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731852] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731878] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731879] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731905] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731906] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731932] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731933] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731961] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731962] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.731989] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.731990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732016] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732017] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732043] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732044] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732071] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732072] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732098] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732100] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732126] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732127] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732153] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732180] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732181] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732207] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732208] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732236] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732237] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732264] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732265] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732292] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732318] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732320] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732346] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732347] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732374] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732375] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732401] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732402] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732428] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732429] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732456] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732483] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732484] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732512] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732513] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732540] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732541] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732567] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732568] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732594] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732596] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732622] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732623] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732650] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732651] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732677] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732678] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732704] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732705] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732732] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732733] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732759] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732760] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732788] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732789] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732815] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732817] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732842] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732844] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732870] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732871] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732897] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732898] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732925] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732926] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732952] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732953] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.732979] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.732981] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733007] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733008] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733035] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733061] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733063] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733089] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733090] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733116] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733117] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733145] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733146] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733173] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733174] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733200] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733201] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733227] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733229] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733254] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733255] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733281] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733282] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733309] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733310] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733336] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733337] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733364] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733365] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733391] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733392] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733418] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733419] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733447] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733449] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733475] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733476] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733502] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733503] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733530] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733531] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733556] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733558] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733584] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733585] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733611] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733613] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733639] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733640] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733666] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733667] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733694] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733695] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733723] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733724] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733750] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733752] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733778] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733779] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733805] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733806] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733832] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733833] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733860] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733861] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733887] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733888] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733914] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733915] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733941] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733942] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733969] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733970] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.733996] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.733997] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734023] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734025] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734050] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734052] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734078] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734079] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734107] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734108] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734135] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734136] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734162] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734163] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734189] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734190] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734217] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734218] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734244] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734245] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734271] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734272] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734298] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734299] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734326] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734327] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734353] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734355] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734381] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734382] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734408] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734409] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734435] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734436] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734464] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734466] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734492] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734493] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734519] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734520] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734547] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734548] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734574] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734575] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734602] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734603] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734629] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734631] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734656] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734658] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734684] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734685] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734711] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734713] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734739] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734740] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734766] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734767] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734793] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734795] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734820] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734821] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734847] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734848] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734874] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734875] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734903] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734905] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734931] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734932] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734958] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734959] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.734986] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.734987] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735013] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735015] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735041] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735042] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735068] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735069] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735095] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735097] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735123] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735124] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735151] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735152] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735178] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735179] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735205] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735206] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735232] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735233] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735259] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735260] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735285] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735287] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735315] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735316] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735342] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735343] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735369] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735371] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735396] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735398] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735424] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735425] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735451] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735453] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735479] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735480] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735508] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735509] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735535] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735536] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735563] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735564] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735590] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735591] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735617] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735619] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735645] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735646] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735672] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735673] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735699] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735700] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735726] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735727] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735755] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735756] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735783] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735784] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735810] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735811] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735837] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735838] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735866] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735892] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735893] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735919] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735921] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735947] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735948] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.735974] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.735975] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736001] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736002] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736030] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736031] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736058] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736059] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736085] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736086] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736114] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736141] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736167] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736168] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736196] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736222] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736223] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736251] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736280] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736307] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736334] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736335] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736362] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736389] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736390] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736416] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736417] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736443] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736444] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736472] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736474] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736499] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736501] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736527] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736528] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736555] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736556] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736583] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736609] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736610] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736636] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736637] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736664] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736691] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736692] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736719] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736720] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736747] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736748] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736774] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736775] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736801] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736803] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736829] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736830] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736856] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736857] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736884] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736885] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736910] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736912] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736940] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736941] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736967] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736968] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.736995] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.736996] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737022] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737023] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737049] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737051] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737077] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737078] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737104] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737105] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737131] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737132] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737159] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737160] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737186] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737187] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737213] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737215] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737240] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737242] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737270] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737271] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737297] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737299] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737325] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737326] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737352] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737353] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737379] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737380] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737407] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737408] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737434] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737435] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737462] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737463] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737489] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737490] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737516] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737518] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737545] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737546] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737573] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737574] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737600] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737602] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737628] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737629] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737655] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737656] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737682] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737683] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737709] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737711] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737737] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737738] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737764] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737766] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737792] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737793] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737821] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737822] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737848] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737850] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737876] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737877] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737903] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737904] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737929] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737931] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737956] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737958] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.737984] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.737985] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738011] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738013] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738039] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738040] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738066] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738067] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738095] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738096] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738123] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738124] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738151] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738152] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738178] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738179] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738205] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738206] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738233] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738234] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738260] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738262] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738289] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738317] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738318] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738344] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738346] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738371] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738373] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738398] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738400] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738426] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738427] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738453] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738455] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738481] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738482] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738508] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738510] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738535] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738537] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738563] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738564] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738590] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738591] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738619] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738620] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738646] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738648] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738674] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738675] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738701] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738702] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738728] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738729] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738756] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738757] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738783] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738784] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738810] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738811] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738838] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738839] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738866] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738893] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738894] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738920] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738921] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738949] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738950] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.738977] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.738978] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739004] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739005] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739031] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739033] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739059] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739060] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739085] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739087] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739114] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739141] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739168] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739169] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739196] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739224] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739225] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739253] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739280] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739307] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739333] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739335] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739360] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739387] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739415] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739416] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739443] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739470] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739471] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739497] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739498] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739525] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739526] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739552] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739553] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739582] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739609] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739610] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739636] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739637] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739664] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739692] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739718] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739719] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739745] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739746] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739773] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739774] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739800] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739801] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739828] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739854] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739855] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739881] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739882] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739908] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739909] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739935] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739936] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739963] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739964] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.739990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.739991] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740018] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740019] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740047] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740048] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740074] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740076] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740102] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740103] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740129] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740131] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740156] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740158] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740184] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740185] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740211] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740212] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740239] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740240] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740266] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740267] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740295] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740296] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740323] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740324] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740350] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740351] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740377] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740379] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740405] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740406] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740432] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740434] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740460] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740461] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740487] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740488] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740514] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740515] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740541] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740543] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740568] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740570] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740598] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740599] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740625] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740626] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740652] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740653] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740680] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740681] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740707] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740708] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740735] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740736] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740762] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740763] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740791] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740792] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740818] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740820] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740846] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740848] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740873] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740875] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740901] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740902] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740928] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740929] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740955] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740956] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.740982] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.740984] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741010] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741011] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741039] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741040] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741067] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741068] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741094] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741095] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741121] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741123] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741149] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741150] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741176] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741177] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741203] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741204] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741231] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741232] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741257] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741258] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741284] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741285] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741312] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741313] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741339] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741340] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741366] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741367] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741393] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741395] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741423] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741424] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741450] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741451] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741477] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741479] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741505] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741506] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741532] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741533] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741560] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741561] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741587] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741588] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741615] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741616] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741642] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741643] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741671] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741672] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741699] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741700] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741727] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741728] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741754] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741755] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741781] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741782] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741809] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741810] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741836] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741837] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741864] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741891] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741892] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741918] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741919] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741945] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741946] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.741974] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.741976] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742002] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742003] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742029] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742030] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742057] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742058] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742084] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742085] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742111] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742112] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742139] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742166] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742167] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742193] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742194] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742220] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742222] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742249] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742251] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742277] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742278] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742304] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742332] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742333] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742359] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742387] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742414] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742415] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742441] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742468] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742469] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742496] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742497] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742523] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742525] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742550] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742552] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742580] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742607] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742608] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742634] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742636] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742662] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742689] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742716] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742717] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742743] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742744] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742771] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742772] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742798] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742799] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742825] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742852] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742853] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742879] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742880] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742906] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742907] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742933] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742935] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742961] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742962] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.742990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.742991] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743018] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743019] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743045] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743046] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743072] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743073] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743099] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743100] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743126] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743127] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743155] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743181] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743183] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743208] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743210] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743236] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743237] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743265] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743266] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743293] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743294] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743320] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743321] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743347] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743348] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743375] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743376] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743402] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743403] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743430] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743431] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743458] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743486] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743487] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743514] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743515] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743542] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743543] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743569] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743570] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743596] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743597] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743625] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743627] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743653] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743654] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743680] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743682] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743707] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743709] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743735] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743736] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743763] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743764] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743790] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743791] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743817] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743818] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743845] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743846] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743873] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743874] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743900] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743901] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743928] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743929] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743955] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743956] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.743982] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.743984] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744010] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744011] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744037] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744038] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744064] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744065] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744091] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744093] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744118] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744119] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744145] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744146] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744174] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744176] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744202] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744203] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744229] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744230] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744257] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744258] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744284] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744285] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744311] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744313] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744339] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744340] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744367] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744368] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744394] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744395] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744423] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744424] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744451] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744452] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744478] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744479] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744505] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744506] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744532] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744533] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744560] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744561] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744587] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744588] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744615] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744616] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744642] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744643] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744670] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744671] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744699] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744700] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744727] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744728] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744754] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744756] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744782] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744783] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744809] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744810] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744837] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744838] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744864] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744891] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744892] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744920] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744921] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744948] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744949] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.744975] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.744976] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745003] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745004] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745030] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745031] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745057] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745058] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745085] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745086] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745112] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745139] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745166] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745168] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745194] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745223] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745224] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745251] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745278] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745305] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745332] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745333] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745360] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745387] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745414] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745415] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745441] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745468] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745469] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745495] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745496] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745523] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745524] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745552] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745553] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745579] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745607] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745608] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745634] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745635] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745661] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745662] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745689] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745716] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745718] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745743] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745744] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745771] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745772] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745797] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745799] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745825] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745852] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745853] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745879] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745880] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745906] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745908] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745933] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745935] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745960] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745962] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.745989] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.745990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746017] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746018] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746044] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746045] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746072] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746073] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746099] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746101] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746127] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746128] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746155] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746182] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746183] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746208] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746210] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746235] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746237] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746264] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746265] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746292] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746293] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746319] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746320] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746347] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746348] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746374] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746375] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746402] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746403] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746429] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746430] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746458] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746484] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746485] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746513] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746514] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746540] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746542] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746567] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746568] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746594] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746596] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746622] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746623] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746650] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746651] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746677] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746678] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746704] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746705] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746731] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746732] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746758] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746760] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746786] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746787] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746813] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746814] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746842] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746843] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746870] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746871] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746897] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746899] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746924] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746926] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746952] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746953] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.746979] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.746980] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747007] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747008] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747035] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747061] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747062] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747088] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747089] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747115] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747116] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747144] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747145] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747172] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747173] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747199] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747200] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747226] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747228] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747254] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747255] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747282] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747283] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747309] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747310] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747337] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747338] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747364] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747365] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747391] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747392] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747420] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747421] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747447] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747449] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747475] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747476] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747503] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747504] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747530] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747531] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747557] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747559] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747585] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747586] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747614] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747615] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747641] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747643] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747668] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747669] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747695] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747696] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747723] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747724] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747750] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747752] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747778] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747779] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747805] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747806] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747832] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747833] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747860] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747861] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747887] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747888] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747914] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747916] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747941] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747943] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747969] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747970] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.747996] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.747997] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748025] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748026] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748053] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748054] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748080] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748081] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748108] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748109] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748134] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748136] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748162] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748163] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748189] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748191] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748216] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748218] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748246] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748247] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748273] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748275] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748300] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748302] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748328] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748329] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748355] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748357] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748383] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748384] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748410] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748412] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748438] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748439] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748467] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748468] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748494] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748496] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748522] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748523] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748549] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748550] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748576] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748577] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748604] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748605] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748631] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748633] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748658] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748659] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748685] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748687] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748713] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748714] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748740] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748741] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748767] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748768] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748794] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748796] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748821] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748823] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748848] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748850] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748876] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748877] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748903] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748904] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748930] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748931] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748959] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748960] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.748987] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.748988] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749014] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749015] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749041] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749042] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749068] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749069] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749096] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749097] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749123] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749124] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749151] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749152] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749178] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749179] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749206] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749207] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749233] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749234] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749262] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749263] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749290] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749316] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749317] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749344] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749345] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749371] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749372] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749398] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749399] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749426] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749427] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749453] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749454] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749481] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749482] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749508] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749509] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749535] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749536] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749562] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749563] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749591] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749592] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749619] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749620] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749646] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749647] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749673] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749674] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749700] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749702] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749728] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749729] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749755] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749756] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749782] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749783] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749809] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749810] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749836] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749837] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749864] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749891] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749892] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749918] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749919] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749947] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749948] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.749975] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.749976] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750002] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750004] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750029] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750031] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750057] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750058] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750084] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750085] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750115] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750141] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750142] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750169] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750170] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750196] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750223] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750224] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750249] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750250] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750277] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750278] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750304] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750305] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750331] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750332] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750359] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750360] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750386] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750414] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750415] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750441] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750469] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750470] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750496] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750497] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750523] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750524] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750550] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750551] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750579] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750580] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750607] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750608] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750634] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750635] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750661] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750689] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750717] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750718] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750744] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750745] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750771] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750773] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750799] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750800] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750827] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750853] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750855] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750881] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750882] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750909] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750910] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750936] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750938] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750964] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750965] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.750990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.750992] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751018] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751019] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751045] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751046] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751072] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751074] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751099] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751101] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751127] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751128] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751155] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751182] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751183] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751209] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751210] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751238] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751239] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751266] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751267] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751293] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751294] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751320] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751321] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751348] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751349] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751375] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751377] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751402] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751404] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751430] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751431] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751458] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751486] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751488] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751514] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751515] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751542] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751543] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751569] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751570] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751596] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751597] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751624] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751625] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751650] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751652] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751677] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751679] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751705] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751706] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751732] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751733] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751759] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751760] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751787] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751788] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751814] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751816] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751842] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751843] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751869] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751870] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751896] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751897] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751923] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751924] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751950] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751951] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.751979] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.751980] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752007] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752008] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752035] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752062] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752063] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752089] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752090] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752116] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752117] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752144] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752145] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752171] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752172] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752198] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752199] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752225] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752227] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752253] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752254] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752282] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752283] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752309] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752310] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752336] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752337] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752364] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752365] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752391] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752393] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752418] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752420] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752446] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752447] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752474] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752475] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752503] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752504] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752530] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752532] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752558] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752559] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752584] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752586] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752611] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752613] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752639] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752640] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752666] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752668] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752694] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752695] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752723] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752724] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752751] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752752] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752778] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752779] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752805] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752806] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752833] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752834] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752860] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752861] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752888] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752889] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752915] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752916] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752943] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752944] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752969] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752970] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.752997] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.752998] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753024] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753025] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753051] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753052] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753078] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753079] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753107] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753108] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753135] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753136] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753162] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753163] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753189] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753190] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753217] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753218] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753244] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753245] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753272] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753273] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753301] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753302] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753329] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753330] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753356] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753358] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753383] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753385] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753411] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753412] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753438] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753440] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753467] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753468] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753495] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753496] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753523] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753524] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753550] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753551] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753577] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753578] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753605] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753606] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753632] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753633] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753661] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753662] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753689] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753716] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753717] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753743] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753744] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753770] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753772] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753797] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753798] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753824] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753851] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753852] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753878] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753880] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753906] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753907] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753933] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753934] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753961] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753962] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.753988] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.753990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754015] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754017] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754043] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754044] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754071] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754072] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754098] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754099] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754125] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754126] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754155] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754181] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754183] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754209] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754210] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754236] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754237] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754264] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754265] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754292] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754318] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754319] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754345] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754346] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754372] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754373] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754400] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754401] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754429] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754430] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754458] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754484] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754485] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754511] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754513] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754538] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754540] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754566] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754567] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754594] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754595] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754621] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754622] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754648] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754650] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754675] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754677] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754703] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754704] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754730] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754731] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754757] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754759] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754784] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754785] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754811] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754813] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754841] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754842] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754868] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754870] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754896] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754897] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754923] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754924] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754951] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754952] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.754978] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.754979] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755005] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755007] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755033] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755060] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755061] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755087] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755089] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755117] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755118] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755144] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755145] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755172] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755173] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755199] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755200] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755226] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755228] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755254] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755255] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755281] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755282] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755310] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755311] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755338] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755339] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755365] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755366] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755393] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755394] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755420] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755421] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755447] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755448] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755475] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755476] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755502] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755503] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755531] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755532] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755558] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755560] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755586] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755587] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755613] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755615] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755640] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755642] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755668] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755669] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755695] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755697] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755724] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755726] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755752] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755753] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755779] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755780] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755807] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755808] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755834] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755835] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755861] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755863] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755888] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755890] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755916] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755917] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755943] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755944] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755971] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.755973] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.755999] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756000] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756026] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756028] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756054] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756055] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756082] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756083] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756109] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756110] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756136] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756137] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756164] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756165] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756190] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756192] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756218] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756219] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756246] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756247] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756274] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756275] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756301] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756302] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756328] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756329] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756355] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756356] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756382] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756384] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756410] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756411] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756438] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756439] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756465] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756466] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756492] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756494] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756519] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756521] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756547] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756548] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756574] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756575] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756601] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756602] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756628] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756630] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756655] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756656] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756682] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756683] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756711] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756712] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756739] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756740] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756766] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756767] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756793] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756794] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756821] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756822] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756848] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756850] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756876] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756877] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756903] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756904] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756931] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756932] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756960] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756961] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.756987] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.756989] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757015] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757016] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757043] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757044] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757070] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757071] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757097] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757098] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757125] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757126] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757152] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757153] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757179] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757180] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757206] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757207] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757235] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757236] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757263] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757264] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757292] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757318] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757319] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757346] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757347] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757372] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757373] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757400] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757401] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757427] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757428] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757454] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757455] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757481] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757482] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757510] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757511] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757537] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757538] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757565] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757566] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757592] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757594] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757619] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757620] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757646] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757647] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757674] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757675] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757701] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757702] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757730] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757731] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757758] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757759] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757785] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757786] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757812] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757814] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757840] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757841] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757868] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757869] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757895] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757896] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757922] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757924] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757950] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757951] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.757979] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.757980] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758006] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758008] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758035] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758061] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758062] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758089] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758090] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758116] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758117] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758143] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758144] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758170] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758171] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758197] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758198] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758224] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758225] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758253] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758280] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758307] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758333] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758334] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758362] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758388] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758389] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758416] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758417] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758442] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758443] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758471] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758473] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758499] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758500] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758526] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758527] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758553] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758555] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758581] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758582] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758608] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758609] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758635] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758636] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758663] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758664] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758690] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758691] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758718] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758719] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758745] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758746] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758772] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758774] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758800] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758801] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758827] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758828] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758854] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758855] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758882] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758883] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758909] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758910] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758936] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758937] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758963] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758965] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.758990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.758991] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759019] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759020] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759047] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759048] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759075] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759076] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759102] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759103] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759129] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759131] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759156] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759158] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759186] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759187] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759213] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759214] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759241] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759242] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759268] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759269] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759295] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759296] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759323] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759324] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759350] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759352] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759377] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759379] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759405] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759406] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759433] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759434] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759462] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759463] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759489] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759491] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759517] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759518] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759544] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759546] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759572] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759573] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759599] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759601] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759627] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759628] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759655] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759656] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759683] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759684] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759710] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759711] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759737] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759738] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759764] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759765] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759791] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759792] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759818] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759820] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759846] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759847] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759873] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759874] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759900] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759902] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759928] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759929] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759954] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759955] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.759981] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.759983] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760009] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760010] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760038] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760039] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760065] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760066] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760093] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760094] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760121] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760122] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760148] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760149] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760176] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760177] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760204] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760206] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760232] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760233] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760259] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760261] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760287] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760288] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760315] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760316] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760342] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760343] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760369] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760370] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760397] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760398] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760424] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760425] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760453] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760454] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760480] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760481] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760507] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760508] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760535] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760536] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760562] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760563] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760590] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760591] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760617] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760618] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760645] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760646] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760672] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760673] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760699] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760700] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760728] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760729] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760756] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760757] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760783] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760784] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760811] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760812] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760838] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760839] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760865] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760867] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760893] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760894] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760920] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760921] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760948] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760949] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.760975] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.760976] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761002] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761003] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761031] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761032] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761059] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761060] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761086] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761087] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761113] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761115] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761140] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761142] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761168] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761169] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761195] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761196] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761222] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761223] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761251] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761279] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761280] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761306] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761307] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761333] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761335] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761361] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761363] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761389] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761390] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761416] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761417] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761443] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761445] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761470] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761471] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761499] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761500] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761527] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761528] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761555] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761556] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761582] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761583] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761610] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761611] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761637] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761638] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761665] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761666] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761693] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761694] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761721] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761722] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761748] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761749] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761776] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761777] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761803] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761804] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761832] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761833] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761859] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761861] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761887] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761888] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761913] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761915] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761941] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761942] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761969] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761970] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.761996] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.761997] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762023] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762024] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762052] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762053] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762080] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762081] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762107] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762108] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762134] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762136] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762162] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762163] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762190] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762191] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762216] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762218] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762243] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762245] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762271] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762272] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762298] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762299] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762327] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762329] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762355] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762356] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762382] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762383] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762410] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762411] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762437] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762439] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762465] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762466] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762492] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762493] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762519] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762520] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762548] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762550] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762576] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762577] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762603] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762604] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762631] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762632] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762659] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762660] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762686] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762687] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762713] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762714] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762740] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762742] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762768] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762769] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762797] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762798] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762825] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762826] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762852] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762853] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762879] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762880] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762906] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762907] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762933] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762934] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762961] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762962] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.762989] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.762990] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763016] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763017] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763045] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763046] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763073] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763074] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763100] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763101] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763128] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763129] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763154] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763156] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763182] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763183] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763209] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763210] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763236] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763237] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763264] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763265] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763291] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763292] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763318] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763319] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763347] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763348] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763374] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763375] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763401] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763402] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763429] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763430] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763456] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763457] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763484] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763485] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763511] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763512] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763538] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763539] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763566] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763567] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763593] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763594] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763621] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763622] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763649] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763650] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763677] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763678] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763704] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763705] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763731] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763732] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763759] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763760] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763786] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763787] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763813] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763814] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763840] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763842] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763868] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763869] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763895] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763896] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763922] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763923] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763949] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763950] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.763978] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.763980] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764006] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764007] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764033] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764034] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764061] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764062] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764088] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764090] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764116] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764117] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764143] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764144] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764171] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764172] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764198] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764199] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764225] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764226] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764252] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764253] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764281] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764282] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764309] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764310] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764336] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764337] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764363] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764364] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764391] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764392] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764418] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764420] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764446] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764447] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764472] nouveau E[   PFIFO][0000:01:00.0] playlist 0 update timeout
>[10433.764473] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764475] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764494] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: (unknown bits 0x80000000)
>[10433.764495] nouveau E[   PFIFO][0000:01:00.0] SUBFIFO0: ch 3 [Xorg[599]] subc 0 mthd 0x0008 data 0x00000000
>[10433.764496] nouveau ![   PFIFO][0000:01:00.0] unhandled status 0x00000001
>[10433.764513] nouveau E[Xorg[599]] 0xffffffff:0xdddddddd init failed with -16
>[10433.764517] nouveau E[Xorg[599]] 0xffffffff:0xffffffff init failed with -16
>[10433.764518] nouveau  [     DRM] resuming display...
>[10437.827551] PM: resume of devices complete after 14361.760 msecs
>[10454.662721] PM: Finishing wakeup.
>[10454.664255] systemd-journald[327]: /dev/kmsg buffer overrun, some messages lost.
>[10454.662723] Restarting tasks ... done.
>[10454.704885] video LNXVIDEO:00: Restoring backlight state
>[10455.142958] systemd-journald[327]: /dev/kmsg buffer overrun, some messages lost.
>[10455.144518] alx 0000:03:00.0: irq 47 for MSI/MSI-X
>[10455.144636] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
>[10455.145542] iwlwifi 0000:04:00.0: L1 Enabled; Disabling L0S
>[10455.149487] systemd-journald[327]: /dev/kmsg buffer overrun, some messages lost.
>[10455.153188] iwlwifi 0000:04:00.0: Radio type=0x2-0x0-0x0
>[10455.211473] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
>[10456.101069] wlan0: authenticate with 00:18:e7:da:f2:53
>[10456.104558] wlan0: send auth to 00:18:e7:da:f2:53 (try 1/3)
>[10456.108372] wlan0: authenticated
>[10456.108989] wlan0: associate with 00:18:e7:da:f2:53 (try 1/3)
>[10456.112394] wlan0: RX AssocResp from 00:18:e7:da:f2:53 (capab=0x411 status=0 aid=1)
>[10456.132071] wlan0: associated
>[10456.132092] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
>[10456.132166] cfg80211: Calling CRDA for country: PL
>[10456.137614] cfg80211: Regulatory domain changed to country: PL
>[10456.137616] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
>[10456.137617] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[10456.137618] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10456.137619] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10456.137620] cfg80211:   (5490000 KHz - 5710000 KHz @ 80000 KHz), (N/A, 2700 mBm)
>[10456.137621] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
>[10459.682041] iwlwifi 0000:04:00.0: fail to flush all tx fifo queues Q 0
>[10459.682044] iwlwifi 0000:04:00.0: Current SW read_ptr 4 write_ptr 6
>[10459.682127] iwl data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>[10459.682142] iwlwifi 0000:04:00.0: FH TRBs(0) = 0x00000000
>[10459.682158] iwlwifi 0000:04:00.0: FH TRBs(1) = 0x80102010
>[10459.682173] iwlwifi 0000:04:00.0: FH TRBs(2) = 0x00000000
>[10459.682189] iwlwifi 0000:04:00.0: FH TRBs(3) = 0x80300005
>[10459.682205] iwlwifi 0000:04:00.0: FH TRBs(4) = 0x00000000
>[10459.682220] iwlwifi 0000:04:00.0: FH TRBs(5) = 0x00000000
>[10459.682235] iwlwifi 0000:04:00.0: FH TRBs(6) = 0x00000000
>[10459.682251] iwlwifi 0000:04:00.0: FH TRBs(7) = 0x0070903d
>[10459.682314] iwlwifi 0000:04:00.0: Q 0 is active and mapped to fifo 3 ra_tid 0x0000 [6,6]
>[10459.682375] iwlwifi 0000:04:00.0: Q 1 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
>[10459.682439] iwlwifi 0000:04:00.0: Q 2 is active and mapped to fifo 1 ra_tid 0x0000 [17,17]
>[10459.682501] iwlwifi 0000:04:00.0: Q 3 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.682564] iwlwifi 0000:04:00.0: Q 4 is active and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.682626] iwlwifi 0000:04:00.0: Q 5 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
>[10459.682689] iwlwifi 0000:04:00.0: Q 6 is active and mapped to fifo 2 ra_tid 0x0000 [0,0]
>[10459.682751] iwlwifi 0000:04:00.0: Q 7 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
>[10459.682813] iwlwifi 0000:04:00.0: Q 8 is active and mapped to fifo 4 ra_tid 0x0000 [0,0]
>[10459.682875] iwlwifi 0000:04:00.0: Q 9 is active and mapped to fifo 7 ra_tid 0x0000 [62,62]
>[10459.682938] iwlwifi 0000:04:00.0: Q 10 is active and mapped to fifo 5 ra_tid 0x0000 [0,0]
>[10459.683001] iwlwifi 0000:04:00.0: Q 11 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683165] iwlwifi 0000:04:00.0: Q 12 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683228] iwlwifi 0000:04:00.0: Q 13 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683291] iwlwifi 0000:04:00.0: Q 14 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683354] iwlwifi 0000:04:00.0: Q 15 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683417] iwlwifi 0000:04:00.0: Q 16 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683479] iwlwifi 0000:04:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683542] iwlwifi 0000:04:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10459.683604] iwlwifi 0000:04:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0]
>[10461.684754] iwlwifi 0000:04:00.0: Error sending REPLY_ADD_STA: time out after 2000ms.
>[10461.684757] iwlwifi 0000:04:00.0: Current CMD queue read_ptr 62 write_ptr 63
>[10461.684759] wlan0: HW problem - can not stop rx aggregation for 00:18:e7:da:f2:53 tid 0
>[10472.956104] iwlwifi 0000:04:00.0: HCMD_ACTIVE already clear for command REPLY_ADD_STA
>[10505.011679] cfg80211: Calling CRDA to update world regulatory domain
>[10505.015755] cfg80211: World regulatory domain updated:
>[10505.015757] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
>[10505.015758] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[10505.015759] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[10505.015760] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm)
>[10505.015761] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10505.015762] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10505.015762] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)
>[10505.422944] wlan0: authenticate with 00:18:e7:da:f2:53
>[10505.425840] wlan0: send auth to 00:18:e7:da:f2:53 (try 1/3)
>[10505.430555] wlan0: authenticated
>[10505.430679] wlan0: waiting for beacon from 00:18:e7:da:f2:53
>[10505.482184] wlan0: associate with 00:18:e7:da:f2:53 (try 1/3)
>[10505.485612] wlan0: RX AssocResp from 00:18:e7:da:f2:53 (capab=0x411 status=0 aid=1)
>[10505.505432] wlan0: associated
>[10505.505479] cfg80211: Calling CRDA for country: PL
>[10505.506942] cfg80211: Regulatory domain changed to country: PL
>[10505.506944] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
>[10505.506946] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[10505.506947] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10505.506947] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[10505.506948] cfg80211:   (5490000 KHz - 5710000 KHz @ 80000 KHz), (N/A, 2700 mBm)
>[10505.506949] cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
>[25420.080294] BUG: soft lockup - CPU#4 stuck for 23s! [Xorg:599]
>[25420.080296] Modules linked in: tcp_lp rfcomm ipt_MASQUERADE xt_CHECKSUM tun ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep fuse arc4 iwldvm mac80211 x86_pkg_temp_thermal coretemp snd_hda_codec_hdmi kvm_intel kvm crc32_pclmul crc32c_intel snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer mei_me uvcvideo sdhci_pci videobuf2_vmalloc sdhci videobuf2_memops videobuf2_core snd videodev alx media iTCO_wdt ghash_clmulni_intel iwlwifi
>[25420.080322]  joydev mmc_core iTCO_vendor_support jmb38x_ms mei lpc_ich btusb bluetooth soundcore cfg80211 i2c_i801 memstick mdio mfd_core ideapad_laptop microcode serio_raw sparse_keymap rfkill shpchp mperf nfsd auth_rpcgss nfs_acl lockd sunrpc nouveau i2c_algo_bit drm_kms_helper ttm mxm_wmi drm i2c_core video wmi
>[25420.080337] CPU: 4 PID: 599 Comm: Xorg Not tainted 3.11.10-301.fc20.x86_64 #1
>[25420.080338] Hardware name: LENOVO 20193/INVALID, BIOS 6BCN34WW(V1.05) 11/29/2012
>[25420.080339] task: ffff88043a4887a0 ti: ffff88043ad0c000 task.ti: ffff88043ad0c000
>[25420.080340] RIP: 0010:[<ffffffff8130dd82>]  [<ffffffff8130dd82>] ioread32+0x42/0x50
>[25420.080344] RSP: 0018:ffff88043ad0dc58  EFLAGS: 00000292
>[25420.080345] RAX: 00000000bad0ac0a RBX: ffffffff81537207 RCX: ffff880385743700
>[25420.080346] RDX: 00000000bad0acb8 RSI: ffffc9000df0e488 RDI: ffffc9000df0e488
>[25420.080346] RBP: ffff88043ad0dc60 R08: 0000000001ca7af8 R09: 0000000000010002
>[25420.080347] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88045ed16f60
>[25420.080348] R13: ffff880386c07c00 R14: ffffffff815349fb R15: ffffffff8118dc3e
>[25420.080349] FS:  00007f8cc7b8d9c0(0000) GS:ffff88045ed00000(0000) knlGS:0000000000000000
>[25420.080350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>[25420.080351] CR2: 00007f8cc66ad000 CR3: 000000043ac96000 CR4: 00000000001407e0
>[25420.080352] Stack:
>[25420.080352]  ffffffffa00f2485 ffff88043ad0dca0 ffffffffa011c446 00000010000003ff
>[25420.080354]  ffff88043ad0de18 ffff880445ddfb40 0000000000000000 ffff88043ae16000
>[25420.080356]  ffff88042d64f0c0 ffff88043ad0ddb8 ffffffffa0122c26 000186a000000040
>[25420.080358] Call Trace:
>[25420.080375]  [<ffffffffa00f2485>] ? _nouveau_fifo_channel_rd32+0x15/0x20 [nouveau]
>[25420.080389]  [<ffffffffa011c446>] nouveau_dma_wait+0x2b6/0x600 [nouveau]
>[25420.080402]  [<ffffffffa0122c26>] nouveau_gem_ioctl_pushbuf+0x4f6/0x1260 [nouveau]
>[25420.080410]  [<ffffffffa0036122>] drm_ioctl+0x512/0x640 [drm]
>[25420.080414]  [<ffffffff811bac7d>] do_vfs_ioctl+0x2dd/0x4b0
>[25420.080415]  [<ffffffff811baed1>] SyS_ioctl+0x81/0xa0
>[25420.080418]  [<ffffffff816533d9>] system_call_fastpath+0x16/0x1b
>[25420.080419] Code: 66 0f 1f 84 00 00 00 00 00 55 48 c7 c6 d9 da a2 81 48 89 e5 e8 f0 fe ff ff b8 ff ff ff ff 5d c3 66 0f 1f 84 00 00 00 00 00 8b 07 <c3> 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff 03 00

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Attachments on bug 1070151: 867916