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      <base href="https://bugs.freedesktop.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - watchdog_overflow_callback hard CPU lockup"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=77946">77946</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>watchdog_overflow_callback hard CPU lockup
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>redafroman22@yahoo.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver/nouveau
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=97999" name="attach_97999" title="dmesg log output">attachment 97999</a> <a href="attachment.cgi?id=97999&action=edit" title="dmesg log output">[details]</a></span>
dmesg log output

I recently upgrade an Ubuntu 12.04 server OS to Ubuntu 14.04 server, kernel
3.13. My machine began locking up during SSH sessions; sometime it'd unlock and
others I just had to hard reboot the computer. I was able to get a dmesg output
that mentioned nouveau_therm_fan_set quite a bit (forgive me if I'm reading the
dump incorrectly). 

I wasn't having any trouble on 3.2 or 3.8 kernels, and I have done a clean
install of 14.04 server with the same problem.

Output from dmesg of the trace on a clean install is attached.</pre>
        </div>
      </p>
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