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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BDW] dEQP-VK.synchronization.*read*_image*fence_fd are flaky"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103450">103450</a>
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<th>Summary</th>
<td>[BDW] dEQP-VK.synchronization.*read*_image*fence_fd are flaky
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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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>Drivers/Vulkan/intel
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>siglesias@igalia.com
</td>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>CC</th>
<td>jason@jlekstrand.net
</td>
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<p>
<div>
<pre>Device: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2) (0x1616)
Mesa HEAD: 767ca5bdf1 (master)
VK-GL-CTS HEAD: ab6b0ac1824ce0b091830042110cf3b3ea17e895 (master)
Command:
$ ./deqp-vk -n dEQP-VK.synchronization.*read*_image*fence_fd
How to reproduce it:
I run these in my updated Fedora GNOME 26 installation on my BDW laptop. The
easiest way to reproduce it is to run them in a terminal and lock/unlock my
GNOME session. Any time I do that, some tests fail. If I don't, they succeed.
Another easy way is to just run one of them in an infinite loop and repeat the
aforementioned steps:
$ while(true); do ./deqp-vk -n dEQP-VK.synchronization.*read*_image* | grep
"Passed" | grep -v "1/1" ; done
Also it is possible to reproduce it when executing a full cts run with piglit
with concurrency mode enabled using dylan's wip/deqp-group-at-a-time branch. In
that case, usually one or two tests fail.
Notes:
* There are no GPU hangs or any other kind of error in dmesg.
* These patches from Jason <a href="https://patchwork.freedesktop.org/series/31771/">https://patchwork.freedesktop.org/series/31771/</a>
(already landed in mesa master) improved the situation a lot, however it is
still possible to reproduce this bug.
* I was not able to reproduce it either on SKL or KBL.</pre>
</div>
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