Bug 1252167
| Summary: | WARNING: CPU: 1 PID: 813 at kernel/module.c:291 module_assert_mutex_or_preempt+0x49/0x90() | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | poma <pomidorabelisima> | ||||||
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||||
| Status: | CLOSED DEFERRED | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | rawhide | CC: | gansalmon, itamar, jonathan, kernel-maint, labbott, madhu.chinakonda, mchehab | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2015-08-21 19:16:05 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
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Created attachment 1064161 [details]
test patch
Can you test the following patch from Peter Z?
$ dmesg | egrep 1-2\|dvb\|mxl [ 1.538292] usb 1-2: new high-speed USB device number 3 using ehci-pci [ 1.663066] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016 [ 1.665385] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 1.667691] usb 1-2: Product: DVB-T 2 [ 1.669957] usb 1-2: Manufacturer: Afatech [ 1.672197] usb 1-2: SerialNumber: 010101010600001 [ 1.681707] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5 [ 1.734659] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1 [ 17.500729] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state [ 17.742778] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 17.782667] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)... [ 17.832182] mxl5007t 13-00c0: creating new instance [ 17.834967] mxl5007t_get_chip_id: unknown rev (3f) [ 17.835169] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0 [ 17.842928] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 18.062975] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)... [ 18.063561] mxl5007t 13-00c0: attaching existing instance [ 18.066364] usb 1-2: dvb_usb_af9015: command failed=1 [ 18.067045] mxl5007t_soft_reset: 521: failed! [ 18.069464] mxl5007t_attach: error -121 on line 907 [ 18.084479] usbcore: registered new interface driver dvb_usb_af9015 $ ls /dev/dvb ls: cannot access /dev/dvb: No such file or directory $ uname -r 4.2.0-0.rc7.git0.4.fc24.x86_64+debug Okay the warning splat is gone which was what the patch was fixing. I suggest treating the bootup issue with the adapter as a separate bugzilla for tracking and leaving this one for the module_assert_mutex_or_preempt warning. If this was working previously, please indicate the last kernel that worked. When I reply back upstream about the patch, do you want a Tested-by credit? Tested-by: poma <pomidorabelisima> One note, perhaps significant, these WARNINGs are occurring with this particular device, not with others that I tested. As I have already mentioned, the dual tuner combination driven by dvb_usb_af9015 & mxl5007t is broken by design, since day one. The last issue - broken on boot, is an escalation of the same. From my perspective, these WARNINGs are only a reflection of that. Therefore, this may well be that it is not a different issue at all. Created attachment 1065058 [details]
Fix for AF9015 DVB-T USB2.0 stick - broken on boot
$ dmesg | egrep 1-2\|dvb\|mxl
[ 1.544000] usb 1-2: new high-speed USB device number 3 using ehci-pci
[ 1.673030] usb 1-2: New USB device found, idVendor=15a4, idProduct=9016
[ 1.673032] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.673034] usb 1-2: Product: DVB-T 2
[ 1.673035] usb 1-2: Manufacturer: Afatech
[ 1.673036] usb 1-2: SerialNumber: 010101010600001
[ 1.680026] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2:1.1/0003:15A4:9016.0001/input/input5
[ 1.737584] hid-generic 0003:15A4:9016.0001: input,hidraw0: USB HID v1.01 Keyboard [Afatech DVB-T 2] on usb-0000:00:02.1-2/input1
[ 19.163681] usb 1-2: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state
[ 19.399240] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 19.455010] usb 1-2: DVB: registering adapter 0 frontend 0 (Afatech AF9013)...
[ 19.495350] mxl5007t 13-00c0: creating new instance
[ 19.497770] mxl5007t_get_chip_id: unknown rev (3f)
[ 19.498030] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0
[ 19.499368] usb 1-2: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 19.717559] usb 1-2: DVB: registering adapter 1 frontend 0 (Afatech AF9013)...
[ 19.718324] mxl5007t 13-00c0: attaching existing instance
[ 19.736909] input: Afatech AF9015 reference design as /devices/pci0000:00/0000:00:02.1/usb1/1-2/rc/rc0/input14
[ 19.738504] rc0: Afatech AF9015 reference design as /devices/pci0000:00/0000:00:02.1/usb1/1-2/rc/rc0
[ 19.738789] usb 1-2: dvb_usb_v2: schedule remote query interval to 500 msecs
[ 19.739073] usb 1-2: dvb_usb_v2: 'Afatech AF9015 reference design' successfully initialized and connected
[ 19.739619] usbcore: registered new interface driver dvb_usb_af9015
$ ls -R /dev/dvb
/dev/dvb:
adapter0 adapter1
/dev/dvb/adapter0:
demux0 dvr0 frontend0 net0
/dev/dvb/adapter1:
demux0 dvr0 frontend0 net0
$ uname -r
4.2.0-0.rc7.git2.4.fc24.x86_64+debug
Indeed it is not a different issue, as you can see. Laura Abbott, I'm pretty sure that your intentions were benevolent here, you're probably just wanted to help. But what you all did - you, Peter Zijlstra and Rusty Russell, is just not right. If you think it's OK to ignore me as the original reporter, man. |
... [ 1.820797] usb 2-4: new high-speed USB device number 3 using ehci-pci ... [ 1.946014] usb 2-4: New USB device found, idVendor=15a4, idProduct=9016 [ 1.946015] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 1.946017] usb 2-4: Product: DVB-T 2 [ 1.946018] usb 2-4: Manufacturer: Afatech [ 1.946019] usb 2-4: SerialNumber: 010101010600001 [ 1.951077] Afatech DVB-T 2: Fixing fullspeed to highspeed interval: 10 -> 7 [ 1.951872] input: Afatech DVB-T 2 as /devices/pci0000:00/0000:00:04.1/usb2/2-4/2-4:1.1/0003:15A4:9016.0001/input/input5 ... [ 40.944872] usb 2-4: dvb_usb_v2: found a 'Afatech AF9015 reference design' in warm state ... [ 41.185333] usb 2-4: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 41.185810] DVB: registering new adapter (Afatech AF9015 reference design) [ 41.194066] i2c i2c-13: af9013: firmware version 5.1.0.0 [ 41.198364] usb 2-4: DVB: registering adapter 0 frontend 0 (Afatech AF9013)... [ 41.296684] mxl5007t 13-00c0: creating new instance [ 41.298998] mxl5007t_get_chip_id: unknown rev (3f) [ 41.299240] mxl5007t_get_chip_id: MxL5007T detected @ 13-00c0 [ 41.305968] usb 2-4: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 41.307094] DVB: registering new adapter (Afatech AF9015 reference design) [ 41.517111] i2c i2c-13: af9013: found a 'Afatech AF9013' in warm state [ 41.522033] i2c i2c-13: af9013: firmware version 5.1.0.0 [ 41.529969] usb 2-4: DVB: registering adapter 1 frontend 0 (Afatech AF9013)... [ 41.530464] mxl5007t 13-00c0: attaching existing instance . ========================================================= [ 41.532816] usb 2-4: dvb_usb_af9015: command failed=1 [ 41.533046] mxl5007t_soft_reset: 521: failed! [ 41.534958] mxl5007t_attach: error -121 on line 907 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = After this the device is already broken ========================================================= . [ 41.536933] ------------[ cut here ]------------ [ 41.537545] WARNING: CPU: 1 PID: 813 at kernel/module.c:291 module_assert_mutex_or_preempt+0x49/0x90() [ 41.538174] Modules linked in: mxl5007t af9013 ... dvb_usb_af9015(+) ... dvb_usb_v2 dvb_core rc_core ... [ 41.542457] CPU: 1 PID: 813 Comm: systemd-udevd Not tainted 4.2.0-0.rc6.git0.1.fc24.x86_64+debug #1 ... [ 41.545938] Call Trace: [ 41.546607] [<ffffffff81868d8e>] dump_stack+0x4c/0x65 [ 41.547280] [<ffffffff810ab406>] warn_slowpath_common+0x86/0xc0 [ 41.547959] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.548633] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.549315] [<ffffffff810ab53a>] warn_slowpath_null+0x1a/0x20 [ 41.549994] [<ffffffff81150529>] module_assert_mutex_or_preempt+0x49/0x90 [ 41.550664] [<ffffffff81150822>] __module_address+0x32/0x150 [ 41.551346] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.552037] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.552684] [<ffffffff81150956>] __module_text_address+0x16/0x70 [ 41.553361] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.554049] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.554701] [<ffffffff81150f19>] symbol_put_addr+0x29/0x40 [ 41.555392] [<ffffffffa04b77ad>] dvb_frontend_detach+0x7d/0x90 [dvb_core] [ 41.556078] [<ffffffffa04cdfd5>] dvb_usbv2_probe+0xc85/0x11a0 [dvb_usb_v2] [ 41.556750] [<ffffffffa05607c4>] af9015_probe+0x84/0xf0 [dvb_usb_af9015] [ 41.557483] [<ffffffff8161c03b>] usb_probe_interface+0x1bb/0x2e0 [ 41.558169] [<ffffffff81579f26>] driver_probe_device+0x1f6/0x450 [ 41.558837] [<ffffffff8157a214>] __driver_attach+0x94/0xa0 [ 41.559469] [<ffffffff8157a180>] ? driver_probe_device+0x450/0x450 [ 41.560126] [<ffffffff815778f3>] bus_for_each_dev+0x73/0xc0 [ 41.560748] [<ffffffff815796fe>] driver_attach+0x1e/0x20 [ 41.561442] [<ffffffff8157922e>] bus_add_driver+0x1ee/0x280 [ 41.562088] [<ffffffff8157b0a0>] driver_register+0x60/0xe0 [ 41.562712] [<ffffffff8161a87d>] usb_register_driver+0xad/0x160 [ 41.563348] [<ffffffffa0567000>] ? 0xffffffffa0567000 [ 41.563971] [<ffffffffa056701e>] af9015_usb_driver_init+0x1e/0x1000 [dvb_usb_af9015] [ 41.564580] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 41.565210] [<ffffffff8124ac65>] ? kmem_cache_alloc_trace+0x355/0x380 [ 41.565834] [<ffffffff81867c37>] ? do_init_module+0x28/0x1e9 [ 41.566428] [<ffffffff81867c6f>] do_init_module+0x60/0x1e9 [ 41.567042] [<ffffffff81154167>] load_module+0x21f7/0x28d0 [ 41.567633] [<ffffffff8114f600>] ? m_show+0x1b0/0x1b0 [ 41.568252] [<ffffffff81026d79>] ? sched_clock+0x9/0x10 [ 41.568861] [<ffffffff810e6ddc>] ? local_clock+0x1c/0x20 [ 41.569453] [<ffffffff811549b8>] SyS_init_module+0x178/0x1c0 [ 41.570059] [<ffffffff8187282e>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 41.570630] ---[ end trace 31a9dd90d4f559f5 ]--- [ 41.576081] ------------[ cut here ]------------ [ 41.576271] WARNING: CPU: 1 PID: 813 at kernel/module.c:291 module_assert_mutex_or_preempt+0x49/0x90() [ 41.576448] Modules linked in: mxl5007t af9013 ... dvb_usb_af9015(+) ... dvb_usb_v2 dvb_core rc_core ... [ 41.578490] CPU: 1 PID: 813 Comm: systemd-udevd Tainted: G W 4.2.0-0.rc6.git0.1.fc24.x86_64+debug #1 ... [ 41.580427] Call Trace: [ 41.580825] [<ffffffff81868d8e>] dump_stack+0x4c/0x65 [ 41.581198] [<ffffffff810ab406>] warn_slowpath_common+0x86/0xc0 [ 41.581581] [<ffffffffa03f40d0>] ? mxl5007t_get_if_frequency+0x90/0x90 [mxl5007t] [ 41.581979] [<ffffffff810ab53a>] warn_slowpath_null+0x1a/0x20 [ 41.582356] [<ffffffff81150529>] module_assert_mutex_or_preempt+0x49/0x90 [ 41.582761] [<ffffffff81150822>] __module_address+0x32/0x150 [ 41.583142] [<ffffffffa03f40d0>] ? mxl5007t_get_if_frequency+0x90/0x90 [mxl5007t] [ 41.583546] [<ffffffff81150956>] __module_text_address+0x16/0x70 [ 41.583960] [<ffffffffa03f40d0>] ? mxl5007t_get_if_frequency+0x90/0x90 [mxl5007t] [ 41.584350] [<ffffffff81150f19>] symbol_put_addr+0x29/0x40 [ 41.584770] [<ffffffffa04b7776>] dvb_frontend_detach+0x46/0x90 [dvb_core] [ 41.585161] [<ffffffffa04cc425>] dvb_usbv2_exit+0x145/0x3c0 [dvb_usb_v2] [ 41.585565] [<ffffffffa04cd44f>] dvb_usbv2_probe+0xff/0x11a0 [dvb_usb_v2] [ 41.585984] [<ffffffffa05607c4>] af9015_probe+0x84/0xf0 [dvb_usb_af9015] [ 41.586377] [<ffffffff8161c03b>] usb_probe_interface+0x1bb/0x2e0 [ 41.586793] [<ffffffff81579f26>] driver_probe_device+0x1f6/0x450 [ 41.587191] [<ffffffff8157a214>] __driver_attach+0x94/0xa0 [ 41.587595] [<ffffffff8157a180>] ? driver_probe_device+0x450/0x450 [ 41.588007] [<ffffffff815778f3>] bus_for_each_dev+0x73/0xc0 [ 41.588407] [<ffffffff815796fe>] driver_attach+0x1e/0x20 [ 41.588823] [<ffffffff8157922e>] bus_add_driver+0x1ee/0x280 [ 41.589217] [<ffffffff8157b0a0>] driver_register+0x60/0xe0 [ 41.589618] [<ffffffff8161a87d>] usb_register_driver+0xad/0x160 [ 41.590031] [<ffffffffa0567000>] ? 0xffffffffa0567000 [ 41.590415] [<ffffffffa056701e>] af9015_usb_driver_init+0x1e/0x1000 [dvb_usb_af9015] [ 41.590829] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 41.591214] [<ffffffff8124ac65>] ? kmem_cache_alloc_trace+0x355/0x380 [ 41.591620] [<ffffffff81867c37>] ? do_init_module+0x28/0x1e9 [ 41.592036] [<ffffffff81867c6f>] do_init_module+0x60/0x1e9 [ 41.592430] [<ffffffff81154167>] load_module+0x21f7/0x28d0 [ 41.592848] [<ffffffff8114f600>] ? m_show+0x1b0/0x1b0 [ 41.593248] [<ffffffff81026d79>] ? sched_clock+0x9/0x10 [ 41.593651] [<ffffffff810e6ddc>] ? local_clock+0x1c/0x20 [ 41.594064] [<ffffffff811549b8>] SyS_init_module+0x178/0x1c0 [ 41.594455] [<ffffffff8187282e>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 41.594854] ---[ end trace 31a9dd90d4f559f6 ]--- [ 41.595236] ------------[ cut here ]------------ [ 41.595607] WARNING: CPU: 1 PID: 813 at kernel/module.c:291 module_assert_mutex_or_preempt+0x49/0x90() [ 41.595984] Modules linked in: mxl5007t af9013 ... dvb_usb_af9015(+) ... dvb_usb_v2 dvb_core rc_core ... [ 41.598377] CPU: 1 PID: 813 Comm: systemd-udevd Tainted: G W 4.2.0-0.rc6.git0.1.fc24.x86_64+debug #1 ... [ 41.600409] Call Trace: [ 41.600819] [<ffffffff81868d8e>] dump_stack+0x4c/0x65 [ 41.601205] [<ffffffff810ab406>] warn_slowpath_common+0x86/0xc0 [ 41.601601] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.602008] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.602391] [<ffffffff810ab53a>] warn_slowpath_null+0x1a/0x20 [ 41.602786] [<ffffffff81150529>] module_assert_mutex_or_preempt+0x49/0x90 [ 41.603166] [<ffffffff81150822>] __module_address+0x32/0x150 [ 41.603553] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.603957] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.604325] [<ffffffff81150956>] __module_text_address+0x16/0x70 [ 41.604705] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.605101] [<ffffffffa057d0b0>] ? af9013_read_ucblocks+0x20/0x20 [af9013] [ 41.605467] [<ffffffff81150f19>] symbol_put_addr+0x29/0x40 [ 41.605860] [<ffffffffa04b77ad>] dvb_frontend_detach+0x7d/0x90 [dvb_core] [ 41.606222] [<ffffffffa04cc425>] dvb_usbv2_exit+0x145/0x3c0 [dvb_usb_v2] [ 41.606605] [<ffffffffa04cd44f>] dvb_usbv2_probe+0xff/0x11a0 [dvb_usb_v2] [ 41.606997] [<ffffffffa05607c4>] af9015_probe+0x84/0xf0 [dvb_usb_af9015] [ 41.607369] [<ffffffff8161c03b>] usb_probe_interface+0x1bb/0x2e0 [ 41.607761] [<ffffffff81579f26>] driver_probe_device+0x1f6/0x450 [ 41.608138] [<ffffffff8157a214>] __driver_attach+0x94/0xa0 [ 41.608524] [<ffffffff8157a180>] ? driver_probe_device+0x450/0x450 [ 41.608914] [<ffffffff815778f3>] bus_for_each_dev+0x73/0xc0 [ 41.609289] [<ffffffff815796fe>] driver_attach+0x1e/0x20 [ 41.609665] [<ffffffff8157922e>] bus_add_driver+0x1ee/0x280 [ 41.610054] [<ffffffff8157b0a0>] driver_register+0x60/0xe0 [ 41.610416] [<ffffffff8161a87d>] usb_register_driver+0xad/0x160 [ 41.610796] [<ffffffffa0567000>] ? 0xffffffffa0567000 [ 41.611162] [<ffffffffa056701e>] af9015_usb_driver_init+0x1e/0x1000 [dvb_usb_af9015] [ 41.611540] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 41.611930] [<ffffffff8124ac65>] ? kmem_cache_alloc_trace+0x355/0x380 [ 41.612309] [<ffffffff81867c37>] ? do_init_module+0x28/0x1e9 [ 41.612698] [<ffffffff81867c6f>] do_init_module+0x60/0x1e9 [ 41.613096] [<ffffffff81154167>] load_module+0x21f7/0x28d0 [ 41.613470] [<ffffffff8114f600>] ? m_show+0x1b0/0x1b0 [ 41.613864] [<ffffffff81026d79>] ? sched_clock+0x9/0x10 [ 41.614230] [<ffffffff810e6ddc>] ? local_clock+0x1c/0x20 [ 41.614595] [<ffffffff811549b8>] SyS_init_module+0x178/0x1c0 [ 41.614952] [<ffffffff8187282e>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 41.615285] ---[ end trace 31a9dd90d4f559f7 ]--- [ 41.616234] usbcore: registered new interface driver dvb_usb_af9015 ...