[Bug 79954] New: Google Hangouts video with Chrome caused "stuck on render ring"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79954

          Priority: medium
            Bug ID: 79954
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: Google Hangouts video with Chrome caused "stuck on
                    render ring"
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: bugzilla at joshuajhill.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 100942
  --> https://bugs.freedesktop.org/attachment.cgi?id=100942&action=edit
Contents of /sys/class/drm/card0/error

While on a Google Hangouts video call, Chrome locked up and the video froze.
Chrome had to be killed, and the following appeared in the syslog:

Jun 12 13:33:34 kernel: [150622.222686] [drm] stuck on render ring
Jun 12 13:33:34 kernel: [150622.222691] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Jun 12 13:33:34 kernel: [150622.222692] [drm] GPU hangs can indicate a bug
anywhere in the entire gfx stack, including userspace.
Jun 12 13:33:34 kernel: [150622.222693] [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
Jun 12 13:33:34 kernel: [150622.222694] [drm] drm/i915 developers can then
reassign to the right component if it's not a kernel issue.
Jun 12 13:33:34  kernel: [150622.222695] [drm] The gpu crash dump is required
to analyze gpu hangs, so please always attach it.

I'm running Ubuntu 14.04, with Ivy Bridge integrated graphics.

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