Red Hat Bugzilla – Bug 1290603
Desktop freezes NVidia GT 720
Last modified: 2016-12-20 11:54:28 EST
Description of problem:
Desktop freezes when completing mundane tasks like changing tabs in chrome. Happens randomly. System is basically unresponsive when this happens ie num lock can still be cycled, and then locks completely in a few seconds and system needs to be hard powered off.
Version-Release number of selected component (if applicable):
Fedora 23 x64, Cinnamon spin
Randomly occurs when flipping between tabs in chrome, or between applications.
# uname -a
Linux 4.2.6-300.fc23.x86_64 #1 SMP Tue Nov 10 19:32:21 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Dec 10 14:51:48 kernel: nouveau E[ PFIFO][0000:01:00.0] read fault at 0x0001065000 [PTE] from GR/GPC0/T1_0 on channe
Dec 10 14:51:48 kernel: nouveau E[ PFIFO][0000:01:00.0] PGRAPH engine fault on channel 6, recovering...
Dec 10 14:51:48 kernel: nouveau E[ PGRAPH][0000:01:00.0] TRAP ch 6 [0x007f9d3000 chrome]
Dec 10 14:51:48 kernel: nouveau E[ PGRAPH][0000:01:00.0] GPC0/TPC0/TEX: 0x80000049
01:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 720] (rev a1) (prog-if 00 [VGA controller])
Subsystem: eVga.com. Corp. Device 2724
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 29
Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e8000000 (64-bit, prefetchable) [size=128M]
Region 3: Memory at f0000000 (64-bit, prefetchable) [size=32M]
Region 5: I/O ports at e000 [size=128]
Expansion ROM at f7000000 [disabled] [size=512K]
Capabilities:  Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee002d8 Data: 0000
Capabilities:  Express (v2) Legacy Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x8, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR-, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [128 v1] Power Budgeting <?>
Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Kernel driver in use: nouveau
Kernel modules: nouveau
Looking through some logs from previous boots I see similar errors, these are all the last logs listed which resulted in a system crash:
Nov 30 14:25:05 kernel: nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ CTXSW_TIMEOUT ]
Nov 30 14:25:05 kernel: nouveau E[ PFIFO][0000:01:00.0] PGRAPH engine fault on channel 6, recovering...
Nov 25 15:03:08 kernel: nouveau E[ PFIFO][0000:01:00.0] read fault at 0x000163a000 [PTE] from GR/GPC0/T1_0 on channel 0x007f9d3000 [chrome]
Nov 25 15:03:08 kernel: nouveau E[ PFIFO][0000:01:00.0] PGRAPH engine fault on channel 6, recovering...
Nov 25 15:03:08 kernel: nouveau E[ PGRAPH][0000:01:00.0] TRAP ch 6 [0x007f9d3000 chrome]
Nov 25 15:03:08 kernel: nouveau E[ PGRAPH][0000:01:00.0] GPC0/TPC0/TEX: 0x80000049
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