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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 - [NVE4] Random GPU lockups"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=95031">95031</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[NVE4] Random GPU lockups
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>lucasout@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=123085" name="attach_123085" title="nouveau bugs">attachment 123085</a> <a href="attachment.cgi?id=123085&action=edit" title="nouveau bugs">[details]</a></span>
nouveau bugs

Having random lockups on a GTX 660 Ti (NVE4), since kernel 4.1 I guess, using
DRI2.
[    0.267666] nouveau 0000:02:00.0: NVIDIA GK104 (0e4030a2)
[    0.378583] nouveau 0000:02:00.0: bios: version 80.04.4b.00.1a
[    0.379302] nouveau 0000:02:00.0: fb: 2048 MiB GDDR5

Now on gentoo ~amd64 using:

sys-kernel/gentoo-sources-4.5.1
x11-base/xorg-server-1.18.3
x11-drivers/xf86-video-nouveau-1.0.12

Also tried Karol Herbst reclocking branch v4
(<a href="https://github.com/karolherbst/nouveau/tree/stable_reclocking_kepler_v4">https://github.com/karolherbst/nouveau/tree/stable_reclocking_kepler_v4</a>),
reclocked to pstate 07 and tried all 3 boost states. All hang sooner or later.

Will continue testing other pstates and boost configurations.

Sometimes the kernel log becomes corrupted, but I managed to get a working log
(attached).</pre>
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