[Bug 103872] New: GPU Hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103872

            Bug ID: 103872
           Summary: GPU Hang
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: fd at rbt.ca
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 135690
  --> https://bugs.freedesktop.org/attachment.cgi?id=135690&action=edit
/sys/class/drm/card0/error

Occurs in both X11 and Wayland (Gnome for both) under Ubuntu 17.10 typically
when playing video (either via Totem or FireFox). Netflix on FireFox v57 seems
particularly good at triggering a lockup which the kernel does not recover from
(hard reboot via power key required).

Output from /sys/class/drm/card0/error attached.

Ubuntu 16.10 and 17.04 didn't seem to cause this type of issue (even with Gnome
on Wayland).

UNAME
=====
$ uname -a
Linux xps13 4.13.0-17-generic #20-Ubuntu SMP Mon Nov 6 10:04:08 UTC 2017 x86_64
x86_64 x86_64 GNU/Linux


DMESG
=====
[  126.003311] [drm] GPU HANG: ecode 9:0:0x85dffffb, in qtdemux0:sink [3297],
reason: Hang on rcs0, action: reset
[  126.003314] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  126.003315] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  126.003316] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  126.003317] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  126.003318] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  126.003379] drm/i915: Resetting chip after gpu hang
[  126.003625] [drm] RC6 on
[  244.082110] asynchronous wait on fence i915:gnome-shell[1679]/1:1756 timed
out
[  244.082260] drm/i915: Resetting chip after gpu hang
[  244.082716] [drm] RC6 on

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