[Bug 84520] New: [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84520

          Priority: medium
            Bug ID: 84520
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [drm] stuck on render ring
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: jean-paul at clusterhq.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 107141
  --> https://bugs.freedesktop.org/attachment.cgi?id=107141&action=edit
the gpu crash dump

While running Chromium in a Google Hangout,

[10031.079101] [drm] stuck on render ring
[10031.079106] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[10031.079107] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[10031.079108] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[10031.079109] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[10031.079110] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.

Chromium became non-responsive and had to be restarted.  The system itself
started exhibiting problems shortly afterwards (eg, mouse cursor disappeared).

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