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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 - [drm] stuck on render ring"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=87560">87560</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[drm] 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>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (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>lars@matholka.se
          </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=111118" name="attach_111118" title="/sys/class/drm/card0/error">attachment 111118</a> <a href="attachment.cgi?id=111118&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error

X was frozen for a short moment and I got the following messages in dmesg:

[29637.380428] perf interrupt took too long (5015 > 5000), lowering
kernel.perf_event_max_sample_rate to 25000
[30661.816011] [drm] stuck on render ring
[30661.817275] [drm] GPU HANG: ecode 0:0xfdffffff, in Xorg [2173], reason: Ring
hung, action: reset
[30661.817280] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[30661.817282] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[30661.817283] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[30661.817285] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[30661.817289] [drm] GPU crash dump saved to /sys/class/drm/card0/error</pre>
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