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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 - GPU HANG, Kicking stuck semaphore on render ring"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93482">93482</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>GPU HANG, Kicking stuck semaphore 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>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>DRM/Intel
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>theholyettlz@googlemail.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=120662" name="attach_120662" title="full dmesg after incident">attachment 120662</a> <a href="attachment.cgi?id=120662&action=edit" title="full dmesg after incident">[details]</a></span>
full dmesg after incident

I was doing some ordinary browsing activity and the screen froze for a few
seconds, before returning to normal. When I checked dmesg I found:

[125107.835253] [drm] GPU HANG: ecode 6:-1:0x00000000, reason: Kicking stuck
semaphore on render ring, action: continue
[125107.835256] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[125107.835257] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[125107.835257] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[125107.835258] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[125107.835259] [drm] GPU crash dump saved to /sys/class/drm/card0/error

Intel HD 3000 graphics on an i7-2760QM. Using Fedora 23, kernel and driver
versions:

kernel-4.2.7-300.fc23.x86_64
xorg-x11-drv-intel-2.99.917-16.20150729.fc23.x86_64
mesa-dri-drivers-11.0.6-1.20151122.fc23.x86_64

Attached below: full dmesg output, Xorg log, crash dump.</pre>
        </div>
      </p>
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