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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT]igt/gem_cs_prefetch sporadically takes more than 10 minutes"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87186">87186</a>
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<th>Summary</th>
<td>[BYT]igt/gem_cs_prefetch sporadically takes more than 10 minutes
</td>
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<th>Product</th>
<td>DRI
</td>
</tr>
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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>
</tr>
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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>
</tr></table>
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<pre>Created <span class=""><a href="attachment.cgi?id=110670" name="attach_110670" title="dmesg">attachment 110670</a> <a href="attachment.cgi?id=110670&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: not sure
Non-working platforms: BYT
==kernel==
--------------------------
drm-intel-nightly/34d267c2ba9c0845432baf959a2c4deed87f3ee4
drm-intel-fixes/b0616c5306b342ceca07044dbc4f917d95c4f825
drm-intel-next-queued/b05ddd4dfb6303ee9dde359ec913aa7a918fd813
==Bug detailed description==
-----------------------------
It fails 1 in 5 runs on BYT with -nightly kernel.
IGT-Version: 1.8-gf333981 (x86_64) (Linux:
3.18.0_drm-intel-nightly_34d267_20141210_debug+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.
real 13m20.823s
user 0m7.349s
sys 9m17.419s
root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_cs_prefetch
IGT-Version: 1.8-gf333981 (x86_64) (Linux:
3.18.0-rc7_drm-intel-next-queued_b05ddd_20141210+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.
real 0m48.062s
user 0m4.316s
sys 0m43.576s
root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_cs_prefetch
IGT-Version: 1.8-gf333981 (x86_64) (Linux:
3.18.0-rc7_drm-intel-fixes_b0616c_20141210+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.
real 0m32.991s
user 0m4.115s
sys 0m28.194s
Reproduce steps:
-------------------------
1. ./gem_cs_prefetch</pre>
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