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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [all Regression]igt/gem_render_copy_redux sporadically cause system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84207">84207</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[all Regression]igt/gem_render_copy_redux sporadically cause system hang
</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>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=106699" name="attach_106699" title="dmesg">attachment 106699</a> <a href="attachment.cgi?id=106699&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: IVB
Kernel: (drm-intel-nightly)c5660b4ad395f1e34eacc22cf81c687edfc9c83c
Bug detailed description:
---------------------------
It sporadically cause system hang, fail rate: 2/3.
It happens on -queued, -fixes and -nightly kernel.
Run 10 cycles on -queued branch commit
6e47e3f097cc6c4cb470a805a3fa07a8e8376dab, it works well.
good commit: 6e47e3f097cc6c4cb470a805a3fa07a8e8376dab
bad commit: b680c37a4d145cf4d8f2b24e46b1163e5ceb1d35
output:
IGT-Version: 1.8-g4b81e9c (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_c5660b_20140922_debug+ x86_64)
Subtest normal: SUCCESS (0.218s)
Subtest interruptible: SUCCESS (0.202s)
Subtest flink: SUCCESS (0.817s)
Subtest flink-interruptible: SUCCESS (0.646s)
Reproduce steps:
-------------------------
1. xinit
2. run ./gem_render_copy_redux 3 cycles.</pre>
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