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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Nouveau system freeze fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100567#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Nouveau system freeze fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100567">bug 100567</a>
from <span class="vcard"><a class="email" href="mailto:libreoffice.org@marc.ngoe.de" title="Marc Burkhardt <libreoffice.org@marc.ngoe.de>"> <span class="fn">Marc Burkhardt</span></a>
</span></b>
<pre>On my Lenovo P50 this problem is newly introduced since I use a 4.14 kernel.
Kernels below that are stable/working in regard of that problem. This is what I
can aquire from the logs:
Dec 28 17:23:13 marc kernel: [ 5657.352825] nouveau 0000:01:00.0: fifo: channel
2: killed
Dec 28 17:23:13 marc kernel: [ 5657.352827] nouveau 0000:01:00.0: fifo: runlist
0: scheduled for recovery
Dec 28 17:23:13 marc kernel: [ 5657.352830] nouveau 0000:01:00.0: fifo: engine
0: scheduled for recovery
Dec 28 17:23:13 marc kernel: [ 5657.352833] nouveau 0000:01:00.0: X[5708]:
channel 2 killed!
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: gr: TRAP ch 2 [00ffbd0000
X[5708]]
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: gr: GPC0/TPC0/TEX: 80000000
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: gr: GPC0/TPC1/TEX: 80000041
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: fifo: read fault at
000ac40000 engine 00 [GR] client 07 [GPC0/T1_2] reason 02 [PTE] on channel 2
[00ffbd0000 X[5708]]
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: fifo: channel 2: killed
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: fifo: runlist 0: scheduled
for recovery
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: fifo: engine 0: scheduled
for recovery
Dec 28 17:23:13 local kernel: nouveau 0000:01:00.0: X[5708]: channel 2 killed!
Dec 28 17:24:03 marc kernel: [ 5706.891489] sysrq: SysRq : Keyboard mode set to
system default
Dec 28 17:24:03 local kernel: sysrq: SysRq : Keyboard mode set to system
default
Dec 28 17:24:04 marc exiting on signal 15
I found this in my Xorg.0.log but I don't know if it's somehow related to the
above:
[ 155.535] (EE) libinput bug: timer event13 debounce short: offset negative
(-2229)</pre>
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