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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW]igt/gem_concurrent_blit/gtt-bcs-early-read-forked causes *ERROR* Unclaimed register detected"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88095">88095</a>
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<th>Summary</th>
<td>[BDW]igt/gem_concurrent_blit/gtt-bcs-early-read-forked causes *ERROR* Unclaimed register detected
</td>
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<th>Product</th>
<td>DRI
</td>
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<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>
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<th>Status</th>
<td>NEW
</td>
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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>
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<th>Reporter</th>
<td>huax.lu@intel.com
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>==System Environment==
--------------------------
Regression: not sure
Non-working platforms: BDW
==kernel==
--------------------------
drm-intel-nightly/07d0c831d9207c937595f081c8fddbddbf53756f
commit 07d0c831d9207c937595f081c8fddbddbf53756f
Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
Date: Tue Dec 30 15:02:01 2014 +0200
drm-intel-nightly: 2014y-12m-30d-13h-01m-34s UTC integration manifest
==Bug detailed description==
-----------------------------
It causes <3>[ 2121.211861] [drm:hsw_unclaimed_reg_detect.isra.4 [i915]]
*ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug
this problem. on drm-intel-nightly kernel when run automation testing. run the
binary, I am unable to reproduce it.
output:
IGT-Version: 1.9-gcb512b6 (x86_64) (Linux:
3.19.0-rc2_drm-intel-nightly_07d0c8_20150105+ x86_64)
using 2x512 buffers, each 1MiB
Subtest gtt-bcs-early-read-forked: SUCCESS (2.200s)
dmesg:
<3>[ 2121.211861] [drm:hsw_unclaimed_reg_detect.isra.4 [i915]] *ERROR*
Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this
problem.
==Reproduce steps==
----------------------------
1. run full igt.</pre>
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