[Bug 108857] New: display becomes unresponsive and keyboard input fails - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 108857] New: display becomes unresponsive and keyboard input fails
Date: Sun, 25 Nov 2018 12:20:11 +0000	[thread overview]
Message-ID: <bug-108857-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=108857

            Bug ID: 108857
           Summary: display becomes unresponsive and keyboard input fails
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: tla2k20-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 142607
  --> https://bugs.freedesktop.org/attachment.cgi?id=142607&action=edit
dmesg

Fedora release 29 (Twenty Nine)
Linux s0.home 4.19.3-300.fc29.x86_64 #1 SMP Wed Nov 21 15:27:25 UTC 2018 x86_64
x86_64 x86_64 GNU/Linux

System boots and is initially OK for a few minutes then becomes unresponsive to
mouse movements and keyboard input.  Access via a SSH session is fine.

Issue started around 3 kernel updates ago (4.19.*).

top shows the following when the problem is in progress:

top - 12:10:25 up  1:10,  2 users,  load average: 0.23, 0.25, 0.27
Tasks: 356 total,   2 running, 354 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.8 us,  6.6 sy,  0.0 ni, 91.6 id,  0.0 wa,  1.0 hi,  0.0 si,  0.0 st
MiB Mem :  15982.9 total,   9198.9 free,   4552.3 used,   2231.7 buff/cache
MiB Swap:   8008.0 total,   8008.0 free,      0.0 used.  11035.1 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
 7144 root      20   0       0      0      0 R  53.8   0.0   0:02.26
kworker/u16:0+events_unbound
 2325 user1     20   0 3867708 195040 118048 S   2.0   1.2   0:28.43
gnome-shell

kworker/u16:2+events_unbound seems to eat CPU and dmesg reports:

nouveau 0000:01:00.0: DRM: base-0: timeout

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