https://bugs.freedesktop.org/show_bug.cgi?id=94694
Bug ID: 94694
Summary: Attempt to use kde/plasma renders the system
immediately unresponsive
Product: Mesa
Version: 11.1
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Drivers/DRI/nouveau
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
Created attachment 122538
--> https://bugs.freedesktop.org/attachment.cgi?id=122538&action=edit
Xorg.0.log for the failed session
The crux of the problem:
Mar 25 23:40:25 mercador kernel: nouveau 0000:01:00.0: plasmashell[6208]:
failed
to idle channel 17 [plasmashell[6208]]
Mar 25 23:40:27 mercador kernel: nouveau 0000:01:00.0: timeout at
drivers/gpu/dr
m/nouveau/nvkm/engine/fifo/gpfifogf100.c:66/gf100_fifo_gpfifo_engine_fini()!
Mar 25 23:40:27 mercador kernel: nouveau 0000:01:00.0: fifo: channel 17
[plasmas
hell[6208]] kick timeout
Mar 25 23:40:27 mercador kernel: nouveau: plasmashell[6208]:00000000:0000906f:
d
etach gr failed, -16
Mar 25 23:40:27 mercador kernel: nouveau 0000:01:00.0: fifo: SCHED_ERROR 0d []
Mar 25 23:40:29 mercador kernel: nouveau 0000:01:00.0: timeout at
drivers/gpu/dr
m/nouveau/nvkm/engine/fifo/gpfifogf100.c:66/gf100_fifo_gpfifo_engine_fini()!
Mar 25 23:40:29 mercador kernel: nouveau 0000:01:00.0: fifo: channel 17
[plasmas
hell[6208]] kick timeout
Mar 25 23:40:29 mercador kernel: nouveau: plasmashell[6208]:00000000:0000906f:
d
etach sw failed, -16
Mar 25 23:40:44 mercador kernel: nouveau 0000:01:00.0: plasmashell[6208]:
failed
to idle channel 17 [plasmashell[6208]]
This will happen immediately upon any interaction with KDE 5 panel.
At this moment system is rendered inoperable, even though it may still possible
to reboot it over network. The CPU usage becomes high, apparently being
consumed by an in-kernel thread.
The kernel version is 4.4.6
Kde/plasma version is 5.19.0, qt is 5.5.1
X11/nouveau driver version is 1.0.12
Xorg.0.log is attached (with some additional errors signalling that event queue
is filling up).
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