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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 - vm protection faults in piglit lest: texsubimage cube_map_array pbo"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89957">89957</a>
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<th>Summary</th>
<td>vm protection faults in piglit lest: texsubimage cube_map_array pbo
</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
</td>
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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/Gallium/radeonsi
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>tstellar@gmail.com
</td>
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<p>
<div>
<pre>To reproduce: /home/tstellar/piglit/bin/texsubimage cube_map_array pbo -auto
-fbo
I've spent some time debugging this and it appears the result from the
v_cubeid_f32
instruction is causing the shader to access memory outside the bounds of the
texture.
If I replace v_cubeid_f32 $dst, $src0, $src1, $src2 instructions with v_mov_f32
$dst, 0.0 or v_mov_f32 $dst, 1.0
I no longer see vm protection faults.
However, if I replace the v_cubeid_f32 instructions with v_mov_f32 $dst, 2.0
then the vm protection faults return. So, it seems the bad case is whenever
the face id is computed as >= 2.0f.</pre>
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