[Bug 91498] New: Broadwell: XVideo: GPU HANG: stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91498

            Bug ID: 91498
           Summary: Broadwell: XVideo: GPU HANG: stuck on render ring
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: pigeon at pigeond.net
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117433
  --> https://bugs.freedesktop.org/attachment.cgi?id=117433&action=edit
/sys/class/drm/card0/error

On a box with Broadwell, playing videos with XVideo sometimes results in this
GPU HANG problem. Can be reproduced using mplayer, gstreamer (xvimagesink), or
vlc.

Kernel messages:
[  752.114617] [drm] stuck on render ring
[  752.116565] [drm] GPU HANG: ecode 0:0x85dffffb, in Xorg [1278], reason: Ring
hung, action: reset
[  752.116571] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  752.116576] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  752.116580] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  752.116584] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  752.116588] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  754.114037] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[  758.112898] [drm] stuck on render ring
[  758.114842] [drm] GPU HANG: ecode 0:0x85dffffb, in Xorg [1278], reason: Ring
hung, action: reset
[  758.115000] [drm:i915_context_is_banned] *ERROR* gpu hanging too fast,
banning!
[  760.112366] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

/sys/class/drm/card0/error attached.

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