[Bug 95108] New: [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason: Engine(s) hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95108

            Bug ID: 95108
           Summary: [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655],
                    reason: Engine(s) hung, action: reset
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: tim.heesters at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 123214
  --> https://bugs.freedesktop.org/attachment.cgi?id=123214&action=edit
/sys/class/drm/card0/error

While watching Youtube in Chromium on an Intel NUC6i5SYH (Skylake) running Arch
Linux with an Intel DRM Nightly kernel (compiled on Thu Apr 21 15:35:07 CEST
2016), this happens:

[32433.777491] [drm] stuck on render ring
[32433.780134] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason:
Engine(s) hung, action: reset
[32433.780140] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[32433.780144] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[32433.780148] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[32433.780151] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[32433.780155] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[32433.782525] drm/i915: Resetting chip after gpu hang
[32435.764178] [drm] RC6 on
[32443.777620] [drm] stuck on render ring
[32443.780067] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason:
Engine(s) hung, action: reset
[32443.781572] drm/i915: Resetting chip after gpu hang
[32445.744378] [drm] RC6 on
[32453.777805] [drm] stuck on render ring
[32453.780239] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason:
Engine(s) hung, action: reset
[32453.782198] drm/i915: Resetting chip after gpu hang
[32455.764444] [drm] RC6 on
[32463.764670] [drm] stuck on render ring
[32463.766750] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason:
Engine(s) hung, action: reset
[32463.769039] drm/i915: Resetting chip after gpu hang
[32465.764619] [drm] RC6 on
[32473.778030] [drm] stuck on render ring
[32473.779751] [drm] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [655], reason:
Engine(s) hung, action: reset
[32473.779970] [drm:i915_set_reset_status] *ERROR* gpu hanging too fast,
banning!
[32473.781369] drm/i915: Resetting chip after gpu hang
[32475.778323] [drm] RC6 on

During this time the system froze (e.g. no mouse), although the audio from
Youtube continued. Afterwards it unfroze, but i had to restart Chromium because
the browser window would not render anymore. 

Besides the above, the drm-nightly kernels of the past 2 weeks or so, have been
running without errors.

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