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<body><span class="vcard"><a class="email" href="mailto:apinheiro@igalia.com" title="Alejandro Piņeiro (freenode IRC: apinheiro) <apinheiro@igalia.com>"> <span class="fn">Alejandro Piņeiro (freenode IRC: apinheiro)</span></a>
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<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] Use after free with compute programs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93790">bug 93790</a>
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<td>apinheiro@igalia.com
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] Use after free with compute programs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93790#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - [HSW] Use after free with compute programs"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93790">bug 93790</a>
from <span class="vcard"><a class="email" href="mailto:apinheiro@igalia.com" title="Alejandro Piņeiro (freenode IRC: apinheiro) <apinheiro@igalia.com>"> <span class="fn">Alejandro Piņeiro (freenode IRC: apinheiro)</span></a>
</span></b>
<pre>(In reply to Kenneth Graunke from <a href="show_bug.cgi?id=93790#c10">comment #10</a>)
<span class="quote">> Patches on the mailing list:
>
> <a href="https://lists.freedesktop.org/archives/mesa-dev/2016-February/107141.html">https://lists.freedesktop.org/archives/mesa-dev/2016-February/107141.html</a>
> <a href="https://lists.freedesktop.org/archives/mesa-dev/2016-February/107142.html">https://lists.freedesktop.org/archives/mesa-dev/2016-February/107142.html</a>
> <a href="https://lists.freedesktop.org/archives/mesa-dev/2016-February/107143.html">https://lists.freedesktop.org/archives/mesa-dev/2016-February/107143.html</a>
> <a href="https://lists.freedesktop.org/archives/mesa-dev/2016-February/107144.html">https://lists.freedesktop.org/archives/mesa-dev/2016-February/107144.html</a></span >
As those are already on master, and just in case people didn't have time to
test again this bug...
<span class="quote">>
> I think this should fix the problem. I tested on Broadwell with:
>
> MESA_EXTENSION_OVERRIDE=GL_ARB_compute_shader valgrind
> bin/arb_shader_image_load_store-semantics -fbo -auto --quick
>
> and saw valgrind errors before these patches, and none after. I haven't
> tried running dEQP through valgrind, though.</span >
... I tried the scenarios pointed at <a href="show_bug.cgi?id=93790#c0">comment #0</a> and at <a href="show_bug.cgi?id=93790#c1">comment #1</a> on haswell.
Although there are still some valgrind warnings, the one pointed by the bug
(use after free, example "Address 0xd3e8ca4 is 884 bytes inside a block of size
1,040 free'd") are gone.
So probably it is safe to close the bug now. Will let Ilia give the final word.</pre>
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