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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>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BYT]igt/gem_concurrent_blit some subcases unable to exit sporadically"
href="https://bugs.freedesktop.org/show_bug.cgi?id=81638">81638</a>
</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>[BYT]igt/gem_concurrent_blit some subcases unable to exit sporadically
</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=103269" name="attach_103269" title="dmesg">attachment 103269</a> <a href="attachment.cgi?id=103269&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Not sure
The fail rate less than 1/10
==kernel==
--------------------------
origin/drm-intel-nightly: 411fa8b275ee903df6c07976af4eebe5815646a4(fails)
drm-intel-nightly: 2014y-07m-21d-19h-30m-33s integration manifest
origin/drm-intel-next-queued: 941d281bd115d1c73773901585c85bc81989f8fa(doesn't
meet in 5 times)
drm/i915: Avoid incorrect returning for some platforms
origin/drm-intel-fixes: a0d036b074b4a5a933e37fcb9bdd6b3cc80a0387(doesn't meet
in 5 times)
drm/i915: Reorder the semaphore deadlock check, again
==Bug detailed description==
-----------------------------
igt/gem_concurrent_blit some subcases unable to exit sporadically
Case list:
igt/gem_concurrent_blit/cpu-early-read-forked
igt/gem_concurrent_blit/cpu-gpu-read-after-write-forked
igt/gem_concurrent_blit/cpu-overwrite-source-forked
igt/gem_concurrent_blit/gtt-early-read-forked
igt/gem_concurrent_blit/gtt-gpu-read-after-write-forked
igt/gem_concurrent_blit/gtt-overwrite-source-forked
igt/gem_concurrent_blit/prw-early-read-forked
igt/gem_concurrent_blit/prw-gpu-read-after-write-forked
igt/gem_concurrent_blit/prw-overwrite-source-forked
Output:
root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_concurrent_blit --run-subtest cpu-early-read-forked
IGT-Version: 1.7-g4d4f4b2 (x86_64) (Linux:
3.16.0-rc6_drm-intel-nightly_411fa8_20140722_debug+ x86_64)
using 2x512 buffers, each 1MiB
^Z
[1]+ Stopped ./gem_concurrent_blit --run-subtest
cpu-early-read-forked
real 17m19.413s
user 0m0.000s
sys 0m0.002s
Reproduce steps:
-------------------------
1. time ./gem_concurrent_blit --run-subtest cpu-early-read-forked</pre>
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