https://bugs.freedesktop.org/show_bug.cgi?id=93629
Bug ID: 93629
Summary: [NVE6] complete system freeze, PGRAPH engine fault on
channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: nouveau@lists.freedesktop.org
Reporter: matthias.h.na...@gmail.com
QA Contact: xorg-t...@lists.x.org
Created attachment 120860
--> https://bugs.freedesktop.org/attachment.cgi?id=120860&action=edit
dmesg output after crash
The system randomly freezes. I can still move the mouse but can't do anything
else. I cannot switch VT, the three-finger salute does not work and system shut
down via ACPI does not work either. The only way of recovery is a hard switch
off.
The crash seems to occur more frequently, if I play videos (mplayer or Flash),
but this is not a requirement.
The crash does not occur, if I use the blob firmware
(nouveau.config="NvGrUseFw=1").
Graphic card: "ASUS GeForce GTX 660 PCI 3.0 2GB DDR5"
uname: "Linux 4.1.12-gentoo #2 SMP Wed Dec 23 19:28:09 CET 2015 x86_64 Intel(R)
Xeon(R) CPU E3-1230 v3 @ 3.30GHz GenuineIntel GNU/Linux"
Beginning of dmesg:
Jan 06 16:04:24 matthias-pc kernel: nouveau E[ PFIFO][0000:01:00.0]
SCHED_ERROR [ CTXSW_TIMEOUT ]
Jan 06 16:04:24 matthias-pc kernel: nouveau E[ PFIFO][0000:01:00.0] PGRAPH
engine fault on channel 2, recovering...
Jan 06 16:04:31 matthias-pc kernel: nouveau E[ PGRAPH][0000:01:00.0] TRAP ch 5
[0x023f926000 kwin[606]]
Jan 06 16:04:31 matthias-pc kernel: nouveau E[ PGRAPH][0000:01:00.0] ROP0
0x80000000 0x80000001
Jan 06 16:04:31 matthias-pc kernel: nouveau E[ PGRAPH][0000:01:00.0] ROP1
0x80000000 0x80000001
Jan 06 16:04:31 matthias-pc kernel: nouveau E[ PGRAPH][0000:01:00.0] ROP2
0x80000000 0x80000001
For a complete log and more system information see the attached files.
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