| What | Removed | Added |
|---|---|---|
| CC | walicki@us.ibm.com |
Comment # 38
on bug 100567
from John Walicki
The nouveau driver on my ThinkPad P50 (running RHEL 7.7 with a
5.2.11-1.el7.elrepo.x86_64 kernel) just hung up with this same error.
Sep 5 09:04:48 jaw-p50rhel7 kernel: nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a
[CTXSW_TIMEOUT]
Sep 5 09:04:48 jaw-p50rhel7 kernel: nouveau 0000:01:00.0: fifo: runlist 0:
scheduled for recovery
Sep 5 09:04:48 jaw-p50rhel7 kernel: nouveau 0000:01:00.0: fifo: channel 2:
killed
Sep 5 09:04:48 jaw-p50rhel7 kernel: nouveau 0000:01:00.0: fifo: engine 0:
scheduled for recovery
Sep 5 09:04:48 jaw-p50rhel7 kernel: nouveau 0000:01:00.0: X[5775]: channel 2
killed!
What is possibly interesting is that in /var/log/Xorg.0.log
there was a mouse event that matches exactly with the timing of the nouveau
errors.
[150241.393] AUDIT: Thu Sep 5 09:04:19 2019: 5775: client 43 disconnected
[150241.396] AUDIT: Thu Sep 5 09:04:19 2019: 5775: client 44 disconnected
[150270.473] (II) event8 - Logitech USB Receiver: SYN_DROPPED event - some
input events have been lost.
The [bracket] is a timestamp which indicates the time since the system last
booted, in seconds. So 150270 is 29 seconds after the 09:04:19 timestamped
line.
09:04:19 + 29 seconds is 09:04:48
The nouveau driver hung at that time (see /var/log/messages timestamp above)
Not certain if that was cause or effect of the video driver hang.
I was able to ssh into my system to reboot.
$ lspci -vv -s 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation GM107GLM [Quadro M1000M]
(rev a2) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 2230
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
Interrupt: pin A routed to IRQ 129
Region 0: Memory at b2000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at a0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at b0000000 (64-bit, prefetchable) [size=32M]
Region 5: I/O ports at 4000 [size=128]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nouveau
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