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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 --- - [ILK]igt/gem_ring_sync_copy randomly causes *ERROR* Hangcheck timer elapsed... bsd ring idle"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78681">78681</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org, jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[ILK]igt/gem_ring_sync_copy randomly causes *ERROR* Hangcheck timer elapsed... bsd ring idle
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</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=99006" name="attach_99006" title="dmesg">attachment 99006</a> <a href="attachment.cgi?id=99006&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: Ironlake
Kernel: (drm-intel-nightly)2be456541ea41728002ccca2de5235f48d14326e
Bug detailed description:
-------------------------
It randomly causes [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer
elapsed... bsd ring idle on Ironlake with -nightly and -queued kernel.It
happens 1 in 10 runs. Run 20 cycles on -fixes kernel,it works well.
output:
IGT-Version: 1.6-g351e7d3 (x86_64) (Linux:
3.15.0-rc3_drm-intel-nightly_2be456_20140514+ x86_64)
Test requirement not met in function __real_main319, file
gem_ring_sync_copy.c:342:
Last errno: 0, Success
Test requirement: (!(data.render.copy))
no render-copy function
Subtest sync-render-blitter-write-read: SKIP
Subtest sync-render-blitter-read-write: SKIP
Subtest sync-render-blitter-write-write: SKIP
Subtest sync-blitter-render-write-read: SKIP
Subtest sync-blitter-render-read-write: SKIP
Subtest sync-blitter-render-write-write: SKIP
Reproduce steps:
----------------
1. ./gem_ring_sync_copy</pre>
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