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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Mesa compiled with LLVM/clang-7.0 segfaults"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109259">109259</a>
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<th>Summary</th>
<td>Mesa compiled with LLVM/clang-7.0 segfaults
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>18.3
</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
</td>
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<th>Component</th>
<td>Mesa core
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>tpgxyz@gmail.com
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<div>
<pre>Hi,
we have noticed that mesa-18.3.x segfault when it is compiled with
LLVM/clang-7.0.x and run on older hardware.
After some deep digging we noticed this may be related to missing AVX
instructions on these machines, even if we build for generic x86_64, i686
targets.
Fast workaround for eliminating segfaults was to build Mesa with gcc :(
<a href="https://github.com/OpenMandrivaAssociation/mesa/commit/4d330587a4d80012c5888e1a33a01a7a979b84e8">https://github.com/OpenMandrivaAssociation/mesa/commit/4d330587a4d80012c5888e1a33a01a7a979b84e8</a>
Rebuilding Mesa with LLVM/clang-7.0.1 still segfaults.
Our users have reported this occurs on:
r600 driver
nvidia gfx card
AMD Athlon II X4 620
AMD Phenom II x4 N930
Intel Quad 9650
Intel i3 530
Links to bug reports:
<a href="https://issues.openmandriva.org/show_bug.cgi?id=2381">https://issues.openmandriva.org/show_bug.cgi?id=2381</a>
<a href="https://issues.openmandriva.org/show_bug.cgi?id=2393">https://issues.openmandriva.org/show_bug.cgi?id=2393</a></pre>
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