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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Broadwell: XVideo: GPU HANG: stuck on render ring"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91498">91498</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Broadwell: XVideo: GPU HANG: stuck on render ring
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>XOrg git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>pigeon@pigeond.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=117433" name="attach_117433" title="/sys/class/drm/card0/error">attachment 117433</a> <a href="attachment.cgi?id=117433&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/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.</pre>
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