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<body><span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression] GPU hangs and misrendering in Vulkan programs on GEN8+ SoCs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100932">bug 100932</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Summary</td>
<td>[regression] GPU hangs in Sacha Willems' Multithreading Vulkan demo
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<td>[regression] GPU hangs and misrendering in Vulkan programs on GEN8+ SoCs
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression] GPU hangs and misrendering in Vulkan programs on GEN8+ SoCs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100932#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression] GPU hangs and misrendering in Vulkan programs on GEN8+ SoCs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100932">bug 100932</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>(In reply to Jason Ekstrand from <a href="show_bug.cgi?id=100932#c3">comment #3</a>)
<span class="quote">> Ok, I managed to track down what I think the problem is. When a BO has the
> EXEC_OBJECT_ASYNC flag set, the kernel is not properly flushing
> write-combine mappings. I'm not sure if this is a kernel bug or if that
> behavior is intended.</span >
(In reply to Chris Wilson from <a href="show_bug.cgi?id=100932#c4">comment #4</a>)
<span class="quote">> Write-combined mappings? They are always flushed. Write-back mappings on
> byt/bsw/bxt are left to you since you opt out of the kernel synchronisation.</span >
Hangs are still happening. And rendering in all Vulkan demos is broken on all
SoCs since this too.
Is there a plan to address the issue (in some other way than reverting the
breaking commit)?</pre>
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