[Bug 92647] New: Total video freeze for minute

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92647

            Bug ID: 92647
           Summary: Total video freeze for minute
           Product: DRI
           Version: XOrg git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jim at pa1jim.nl
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119150
  --> https://bugs.freedesktop.org/attachment.cgi?id=119150&action=edit
/sys/class/drm/card0/error dump

Once every other hour or so, whole system freezes for roughly a minute. Resumes
perfect after that. Found this in syslog: 

Oct 23 18:45:40 PA1JIM kernel: [  551.137844] [drm] stuck on render ring
Oct 23 18:45:40 PA1JIM kernel: [  551.137852] [drm] GPU crash dump saved to
/sys/class/drm/card0/error
Oct 23 18:45:40 PA1JIM kernel: [  551.137853] [drm] GPU hangs can indicate a
bug anywhere in the entire gfx stack, including userspace.
Oct 23 18:45:40 PA1JIM kernel: [  551.137854] [drm] Please file a _new_ bug
report on bugs.freedesktop.org against DRI -> DRM/Intel
Oct 23 18:45:40 PA1JIM kernel: [  551.137854] [drm] drm/i915 developers can
then reassign to the right component if it's not a kernel issue.
Oct 23 18:45:40 PA1JIM kernel: [  551.137855] [drm] The gpu crash dump is
required to analyze gpu hangs, so please always attach it.

Linux PA1JIM 3.13.0-66-generic #108-Ubuntu SMP Wed Oct 7 15:20:27 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux

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