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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SNB]igt/kms_flip some some cases hang and cause system unable to reboot."
href="https://bugs.freedesktop.org/show_bug.cgi?id=89033">89033</a>
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<th>Summary</th>
<td>[SNB]igt/kms_flip some some cases hang and cause system unable to reboot.
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>hengx.ding@intel.com
</td>
</tr>
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<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=113268" name="attach_113268" title="dmesg">attachment 113268</a> <a href="attachment.cgi?id=113268&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: not sure, this issue is not 100% reproducible.
Non-working platforms: SNB
==kernel==
--------------------------
nightly-2015-02-09/b4442ee4e150506cebeee72249efc566c5f14bbe
==Bug detailed description==
--------------------------
Some of kms_flip subcases will hang, the white block stop fliping on monitor,
and the case is unable to be stoped with ctrl+c or kill command. If you tried
to reboot it, the ssh connection may lost, seems the system is hang. This issue
is not 100% reproducible, so the affect case maybe more than listed.
Affected cases:
igt/kms_flip/plain-flip-fb-recreate
igt/kms_flip/2x-plain-flip-fb-recreate-interruptible
==Reproduce steps==
----------------------------
1. ./kms_flip --run-subtest plain-flip-fb-recreate</pre>
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