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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Deadlock inside glClientWaitSync"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105339">105339</a>
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<th>Summary</th>
<td>Deadlock inside glClientWaitSync
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr>
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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>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>blocker
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
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</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dark_sylinc@yahoo.com.ar
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Calling glClientWaitSync under specific conditions will run into an
unrecoverable deadlock.
The only known workaround is to issue a glFlush before glClientWaitSync.
I originally discovered this problem in the Dolphin Emulator, see ticket
<a href="https://bugs.dolphin-emu.org/issues/10904">https://bugs.dolphin-emu.org/issues/10904</a>
However I am now reporting it because I was able to reproduce this bug
independently.
Reported affected systems so far:
Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
16GB RAM (1 stick)
GPU: Radeon RX 560 Series (POLARIS11 / DRM 3.19.0 / 4.14.11, LLVM 6.0.0)
Mesa 18.1.0-devel (git-183ce5e629)
Xubuntu 17.10
Kernel 4.14.11
i3 4150 @ 3.50ghz
DDR3 12GB RAM
AMD R7 260X 2GB VRAM
Ubuntu 17.10
Kernel 4.15.4
Mesa 18.1.0-devel
I will try to upload a simple repro if I can in the next few hours.
I stumble on this issue because our Ogre 2.2 sample "Sample_PlanarReflections"
is affected by it.
My git version is stuck at 847d0a393d7f0f967f39302900d5330f32b804c8 due to an
unrelated regression reported at
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Regresion in 847d0a393d7f0f967f39302900d5330f32b804c8"
href="show_bug.cgi?id=105218">https://bugs.freedesktop.org/show_bug.cgi?id=105218</a>
However I know the bug is still present as of
1f5618e81c00199d3349b1ade797382635b2af85 (which is not latest)</pre>
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</p>
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