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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [PNV Regression]igt/kms_flip some subcases causes system hang"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81864">81864</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>bisect_pending
</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>[PNV Regression]igt/kms_flip some subcases causes system hang
</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=103627" name="attach_103627" title="dmesg">attachment 103627</a> <a href="attachment.cgi?id=103627&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued: 91565c85b66db820f01894a971d39aaef60c4325(here has
another <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BSW]igt/pm_rps subcases fail"
href="show_bug.cgi?id=80704">bug 80704</a>)
Non-working platforms: PNV
==kernel==
--------------------------
origin/drm-intel-nightly: 608e8cf58f0c125093664d452d6d297991feb6c7(fails)
drm-intel-nightly: 2014y-07m-28d-17h-29m-13s integration manifest
origin/drm-intel-next-queued: 98fcc935e2f2f5de04ec8957312dc26a94371ae7(fails)
work around warning in i915_gem_gtt
origin/drm-intel-fixes: f4be89cecea437aaddd7700d05c6bdb5678041f7(here has
another <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BSW]igt/pm_rps subcases fail"
href="show_bug.cgi?id=80704">bug 80704</a>)
drm/i915: Fix crash when failing to parse MIPI VBT
==Bug detailed description==
igt/kms_flip some subcases causes system hang.
Case list:
igt/kms_flip/rcs-flip-vs-dpms
igt/kms_flip/rcs-flip-vs-modeset
igt/kms_flip/wf_vblank-vs-modeset-interruptible
Output:
[root@x-pnv2 tests]# time ./kms_flip --run-subtest rcs-flip-vs-dpms
IGT-Version: 1.7-ge48c495 (i686) (Linux:
3.16.0-rc4_drm-intel-next-queued_98fcc9_20140729+ i686)
^Z^C
^C
==Reproduce steps==
----------------------------
1. ./kms_flip --run-subtest rcs-flip-vs-dpms</pre>
</div>
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