[Bug 94493] New: GPU HANG: ecode 8:0:0x85dffffb, in Xorg [785], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94493

            Bug ID: 94493
           Summary: GPU HANG: ecode 8:0:0x85dffffb, in Xorg [785], reason:
                    Ring hung, action: reset
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jan.hicken at posteo.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 122223
  --> https://bugs.freedesktop.org/attachment.cgi?id=122223&action=edit
/sys/class/drm/card0/error

Running current Arch Linux with Linux 4.1.18-1-lts #1 SMP Tue Feb 16 20:17:57
CET 2016 x86_64 GNU/Linux

xf86-video-intel package version 1:2.99.917+560+gd167280-1

Kernel log snippet:

[drm] stuck on render ring
[drm] GPU HANG: ecode 8:0:0x85dffffb, in Xorg [785], reason: Ring hung, action:
reset
[drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including
userspace.
[drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI ->
DRM/Intel
[drm] drm/i915 developers can then reassign to the right component if it's not
a kernel issue.
[drm] The gpu crash dump is required to analyze gpu hangs, so please always
attach it.
[drm] GPU crash dump saved to /sys/class/drm/card0/error
drm/i915: Resetting chip after gpu hang
[drm] stuck on render ring
[drm] GPU HANG: ecode 8:0:0x85dffffb, in Xorg [785], reason: Ring hung, action:
reset
[drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast, banning!
drm/i915: Resetting chip after gpu hang
i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment

Content of /sys/class/drm/card0/error has been attached to this bug.

The GUI freezes for several seconds and resumes operation with limited
graphical performance until a full reboot. The crashes occur on every boot
after some minutes of normal operation.

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