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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW]igt/gem_cs_prefetch causes *ERROR* Hangcheck timer elapsed... render ring idle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89644">89644</a>
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<th>Summary</th>
<td>[BSW]igt/gem_cs_prefetch causes *ERROR* Hangcheck timer elapsed... render ring idle
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<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>huax.lu@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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=114428" name="attach_114428" title="dmesg">attachment 114428</a> <a href="attachment.cgi?id=114428&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: not sure, I am unable to find good commit
no-working platforms: BSW
==kernel==
--------------------------
drm-intel-nightly/3753ea527e539d3358a6368e77cb29ecb2e71c42
commit 3753ea527e539d3358a6368e77cb29ecb2e71c42
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Tue Mar 17 22:36:04 2015 +0100
drm-intel-nightly: 2015y-03m-17d-21h-35m-20s UTC integration manifest
==Bug detailed description==
-----------------------------
It causes <3>[ 95.780262] [drm:i915_hangcheck_elapsed [i915]] *ERROR*
Hangcheck timer elapsed... render ring idle on BSW. Test the latest
drm-intel-nightly and drm-intel-next-queued kernel. Test kernel:
2015_01_18/drm-intel-nightly/be0b52082364f73b6ffa2841ec4ded2ddecfa881, it also
has this issue..
output:
IGT-Version: 1.10-g505645c (x86_64) (Linux:
4.0.0-rc4_drm-intel-nightly_3753ea_20150318+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.
SUCCESS (67.727s)</pre>
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