[Bug 98922] New: GPU hang on PlaneShift

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98922

            Bug ID: 98922
           Summary: GPU hang on PlaneShift
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: Martin at Lichtvoll.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

I am just reporting this as a separate bug, but it may be a duplicate of
#98747, #98794, #98860, #98891, #98288 and probably more. But I am not sure
whether it is, and kernel log asks me to file a _new_ bug, so reporting as new
bug.

I got this with 4.9.0-rc4-tp520-drm-intel-fixes-btrfstrim which is a rc4 with
drm-intel-fixes branch from 8th of November, I didn´t retest with 4.9-rc7 yet
as I am back at 4.8 again after having faced a GPU hang on resume after
hibernation, thats #98288.

merkaba:~#1> zgrep "GPU HANG" /var/log/kern.log*
/var/log/kern.log.3.gz:Nov  8 21:19:08 merkaba kernel: [ 8401.004898] [drm] GPU
HANG: ecode 6:0:0x85fffffc, in psclient.bin [8120], reason: Hang on render
ring, action: reset

Nov  8 21:19:08 merkaba kernel: [ 8401.004898] [drm] GPU HANG: ecode
6:0:0x85fffffc, in psclient.bin [8120], reason: Hang on render ring, action:
reset
Nov  8 21:19:08 merkaba kernel: [ 8401.004902] [drm] GPU hangs can indicate a
bug anywhere in the entire gfx stack, including userspace.
Nov  8 21:19:08 merkaba kernel: [ 8401.004903] [drm] Please file a _new_ bug
report on bugs.freedesktop.org against DRI -> DRM/Intel
Nov  8 21:19:08 merkaba kernel: [ 8401.004904] [drm] drm/i915 developers can
then reassign to the right component if it's not a kernel issue.
Nov  8 21:19:08 merkaba kernel: [ 8401.004905] [drm] The gpu crash dump is
required to analyze gpu hangs, so please always attach it.
Nov  8 21:19:08 merkaba kernel: [ 8401.004905] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Nov  8 21:19:08 merkaba kernel: [ 8401.004947] drm/i915: Resetting chip after
gpu hang

Unfortunately I do not have a crash dump. As the hang was so long (or repeated)
that I just switched off the machine with the power button.

I may retest with latest 4.9 kernel on the weekend, but not during the week
anymore, but even then I cannot guarentee whether I can get a crash dump as
when the machine is hanging, hmmm, maybe via ssh from another laptop.

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