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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [IVB/SNB/BDW Regression]igt/gem_reset_stats some subcases causes system hang sporadically"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86959">86959</a>
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<th>Summary</th>
<td>[IVB/SNB/BDW Regression]igt/gem_reset_stats some subcases causes system hang sporadically
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>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
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>jinxianx.guo@intel.com
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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
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<p>
<div>
<pre>==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued:
65fa5f773196ccc88c4aae43ece9119f092c20a6(2014_11_26), I tried 10 times, doesn't
causes system hang.
Non-working platforms: IVB SNB BDW
==kernel==
--------------------------
origin/drm-intel-nightly: 2014_12_03(fails)
origin/drm-intel-next-queued:d06cced8fa81d56e56ab34e93a83236b151c2a76(fails)
drm/i915: Move init_unused_rings to gem_init_hw
origin/drm-intel-fixes: b0616c5306b342ceca07044dbc4f917d95c4f825(works)
drm/i915: Unlock panel even when LVDS is disabled
==Bug detailed description==
-----------------------------
igt/gem_reset_stats some subcases causes system hang sporadically, the fail
rate about 1 out of 5
==Reproduce steps==
----------------------------
1. ./gem_reset_stats --run-subtest ban-render</pre>
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