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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [IVB: Apple MacBook PRO] glxgears cause "gpu hang" reminder messages in dmesg, but machine is reachable"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=65332">65332</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[IVB: Apple MacBook PRO] glxgears cause "gpu hang" reminder messages in dmesg, but machine is reachable
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>yangweix.shui@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
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        <pre>Created <span class=""><a href="attachment.cgi?id=80266" name="attach_80266" title="dmesg: glxgears cause "gpu hang"">attachment 80266</a> <a href="attachment.cgi?id=80266&action=edit" title="dmesg: glxgears cause "gpu hang"">[details]</a></span>
dmesg: glxgears cause "gpu hang"

Environment:
---------------------
Kernel: (drm-intel-next-queued)92d44621ad2d083bc03920c904ca0a5eb10d9ded
Some additional commit info:
Author: Paulo Zanoni <<a href="mailto:paulo.r.zanoni@intel.com">paulo.r.zanoni@intel.com</a>>
Date:   Fri May 31 16:33:24 2013 -0300

    drm/i915: add i915_ips_status debugfs entry

Description:
---------------------
When I start glxgears on our new IVB platform(Apple MacBook Pro), glxgears will
take a little more time to be activated. The graphics box will be black for a
while, then glxgears also worked properly. I checked the dmesg, there's some
error messages like below:

[  461.016229] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
[  461.016240] [drm] capturing error event; look for more information in
/sys/kernel/debug/dri/0/i915_error_state
[  461.019565] [drm:i915_error_work_func], resetting chip 

I also test other one IVB desktop platform, there's not this problem.

Reproduce steps:
---------------------
1. reboot machine
2. xinit & 
3. glxgears &
4. checkout dmesg</pre>
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