Nouveau - Mar 2016 - [Bug 94694] New: Attempt to use kde/plasma renders the system immediately unresponsive

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: nouveau at lists.freedesktop.org
          Reporter: oakad at yahoo.com
        QA Contact: nouveau at lists.freedesktop.org

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).

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20160325/52e2e3b3/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=94694

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Attempt to use kde/plasma   |[NVC1] Attempt to use
                   |renders the system          |kde/plasma renders the
                   |immediately unresponsive    |system immediately
                   |                            |unresponsive

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Anything before the "failed to idle" message in dmesg? That generally
indicates
"GPU hung", but often there will be information earlier which helps
understand
why the GPU is dying.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20160325/21c6e09c/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=94694

--- Comment #2 from Alexander Dubov <oakad at yahoo.com> ---
Some additional messages do appear:

Mar 25 23:40:44 mercador kernel: nouveau 0000:01:00.0: fifo: SCHED_ERROR 0d []
Mar 25 23:40:46 mercador kernel: nouveau 0000:01:00.0: fifo: runlist update
time
out
Mar 25 23:40:46 mercador kernel: nouveau 0000:01:00.0: fifo: INTR 00000001:
0000
000b

During a different attempt:

Mar 25 18:19:03 mercador kernel: [ 3381.724766] nouveau 0000:01:00.0: fifo:
PBDM
A0: 00040000 [] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd 2490 data
0000
00d0
Mar 25 18:19:03 mercador kernel: [ 3381.724779] nouveau 0000:01:00.0: fifo:
PBDM
A0: 00200000 [ILLEGAL_MTHD] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd
00
0c data 80ff0e04
Mar 25 18:19:03 mercador kernel: [ 3381.724789] nouveau 0000:01:00.0: fifo:
PBDM
A0: 02000000 [] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd 0020 data
0000
8006
Mar 25 18:19:03 mercador kernel: [ 3381.724801] nouveau 0000:01:00.0: fifo:
PBDM
A0: 00200000 [ILLEGAL_MTHD] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd
00
30 data 800103e4
Mar 25 18:19:03 mercador kernel: [ 3381.724812] nouveau 0000:01:00.0: fifo:
PBDM
A0: 00200000 [ILLEGAL_MTHD] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd
00
34 data 20010680
Mar 25 18:19:03 mercador kernel: [ 3381.724822] nouveau 0000:01:00.0: fifo:
PBDM
A0: 00200000 [ILLEGAL_MTHD] ch 17 [003f4cc000 plasmashell[24734]] subc 0 mthd
00
38 data 00001111
.... more similar messages to follow ....

Also, there may have been other messages during other runs (because of a nasty
nature of a fault it's not always possible to capture them).

Also, it appears that only Plasma is affected: Gnome, Firefox (including WebGL
stuff), most KDE apps running stand alone appear to just work.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20160325/63c82d81/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=94694

--- Comment #3 from Alexander Dubov <oakad at yahoo.com> ---
It so appears that the issue is due to use of libGLESv2. After re-linking the
Qt library to libGL everything appears to work correctly.

Still, it is pretty unfortunate that a problematic user space library can crash
the kernel like this.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20160325/f7665c9c/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=94694

GitLab Migration User <gitlab-migration at fdo.invalid> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #4 from GitLab Migration User <gitlab-migration at
fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1098.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20190918/feea0bb6/attachment-0001.html>