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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 --- - [IVB/HSW ULT Regression]igt/gem_cs_prefetch costs long time to execute"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78246">78246</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>[IVB/HSW ULT Regression]igt/gem_cs_prefetch costs long time to execute
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jinxianx.guo@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>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=98404" name="attach_98404" title="dmesg">attachment 98404</a> <a href="attachment.cgi?id=98404&action=edit" title="dmesg">[details]</a></span>
dmesg
*System Environment:
--------------------------
Platform: IVB HSW ULT
kernel:
-nightly: 08ce6614d07dd1e426109672a5e323317c8d6ec7(fails)
-queued: e5c03ca362819ba8ffbe5674340b61b9cd75de8f (fails)
-fixes: 9bbfd20abe5025adbb0ac75160bd2e41158a9e83 (works)
*Bug detailed description:
-----------------------------
igt/gem_cs_prefetch costs long time to execute, it costs about 11 minutes to
finish.
It's a regression bug
Good commit: bb8786a44c6042ec8a85370466a8bd400a079bdc
Bad commit: e5c03ca362819ba8ffbe5674340b61b9cd75de8f
We will bisect is later
Output:
date;./gem_cs_prefetch;date
Sun May 4 16:17:43 EDT 2014
IGT-Version: 1.6-gc864279 (x86_64) (Linux:
3.14.0_drm-intel-next-queued_e5c03c_20140504+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.
Sun May 4 16:27:58 EDT 2014
*Reproduce steps:
----------------------------
1. ./gem_cs_prefetch</pre>
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