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<body><span class="vcard"><a class="email" href="mailto:pavel.ondracka@email.cz" title="Pavel Ondračka <pavel.ondracka@email.cz>"> <span class="fn">Pavel Ondračka</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [ivb blorp?] GPU hang in witcher.EXE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91730">bug 91730</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Keywords</td>
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<td>bisected, regression
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<td style="text-align:right;">CC</td>
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<td>mattst88@gmail.com, pavel.ondracka@email.cz
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ivb blorp?] GPU hang in witcher.EXE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91730#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ivb blorp?] GPU hang in witcher.EXE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91730">bug 91730</a>
from <span class="vcard"><a class="email" href="mailto:pavel.ondracka@email.cz" title="Pavel Ondračka <pavel.ondracka@email.cz>"> <span class="fn">Pavel Ondračka</span></a>
</span></b>
<pre>I can reproduce a similar behavior in Total War: Shogun2.
GPU hangs and "intel_do_flush_locked failed: Input/output error" is printed in
the terminal. Hopefully it is the same bug, however for me this is 100%
reproducible.
I've managed to bisect it to:
commit f5cf74d8ba8ce30b9d53b2198e5122ed72f1dcff
Author: Matt Turner <<a href="mailto:mattst88@gmail.com">mattst88@gmail.com</a>>
Date: Tue May 5 20:25:07 2015 -0700
nir: Recognize (a < c || b < c) as min(a, b) < c.
... and (a >= c) || (b >= c) as max(a, b) >= c.
Similar to commit 97e6c1b9.
total instructions in shared programs: 6182276 -> 6182180 (-0.00%)
instructions in affected programs: 6400 -> 6304 (-1.50%)
helped: 68
HURT: 4
Reviewed-by: Jordan Justen <<a href="mailto:jordan.l.justen@intel.com">jordan.l.justen@intel.com</a>>
Reviewed-by: Glenn Kennard <<a href="mailto:glenn.kennard@gmail.com">glenn.kennard@gmail.com</a>>
Tim can you confirm this with your testcases?
It can be reproduced with this trace: <a href="http://pavel.ondracka.cz/Shogun2.trace">http://pavel.ondracka.cz/Shogun2.trace</a>
My system info:
GPU: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2)
Mesa: c0722be9f58ef89dae98d8c459ec4f9589f97748
kernel: 4.1.7-200.fc22.x86_64
libdrm: 94ecdcb8b11dd3eb6b047ad72030d775014aadee
xf86-video-intel: 679ee12079a7d2682d41506b81973c7c7d4fa1d8 (sna+dri3)</pre>
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