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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 - [BYT] Unable to purge GPU memory due lock contention."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=99036">99036</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BYT] Unable to purge GPU memory due lock contention.
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>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>Drivers/DRI/i965
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mark.a.janes@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>BYT intermittently report the following dmesg error when executing piglit:

   Unable to purge GPU memory due lock contention.

Subsequently, the machine fails other GPU test suites, and eventually
hard-hangs.

I've performed hundreds of piglit runs on byt to reproduce this intermittent
issue.  The earliest I have seen it is:

029e8ff81c65c2e0562be4a5d93fe83a9df49233
radv: Initialize the shader_stats_dump flag.

It's likely that this is triggered by a i965 commit just prior to 029e8ff.  I
will continue to test in an attempt to identify the regression more precisely.</pre>
        </div>
      </p>


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