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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 - BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:34"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103964">103964</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:34
          </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>rafael.antognolli@intel.com
          </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=135791" name="attach_135791" title="Dmesg output with trace.">attachment 135791</a> <a href="attachment.cgi?id=135791&action=edit" title="Dmesg output with trace.">[details]</a></span>
Dmesg output with trace.

After a couple GPU hangs, I get the attached trace output.

Sometimes the machine gets totally frozen, although I couldn't reproduce that
with the serial cable attached.

drm-tip from today has the issue:

5144438448829ec2a3d94fd16a9e69a52cfa7b3b
Author: Tvrtko Ursulin <<a href="mailto:tvrtko.ursulin@intel.com">tvrtko.ursulin@intel.com</a>>                               
Date:   Tue Nov 28 17:05:46 2017 +0000                                          

    drm-tip: 2017y-11m-28d-17h-04m-56s UTC integration manifest



And this wouldn't happen on the one from last week:

42670ce69ef7a03b53bea25fad60a9b3931402cf
Author: Lionel Landwerlin <<a href="mailto:lionel.g.landwerlin@intel.com">lionel.g.landwerlin@intel.com</a>>                       
Date:   Mon Nov 20 16:11:13 2017 +0000                                          

    drm-tip: 2017y-11m-20d-16h-09m-47s UTC integration manifest</pre>
        </div>
      </p>


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