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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 - Invalid sampler settings cause full GPU reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97524">97524</a>
</td>
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<th>Summary</th>
<td>Invalid sampler settings cause full GPU reset
</td>
</tr>
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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>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>minor
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/Gallium/radeonsi
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>dark_sylinc@yahoo.com.ar
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=126091" name="attach_126091" title="Bug repro">attachment 126091</a> <a href="attachment.cgi?id=126091&action=edit" title="Bug repro">[details]</a></span>
Bug repro
Running invalid the following GL settings hangs Mesa pretty badly. Sometimes it
says stuck on ring(0)/(3), other times it just hangs; GPU tries to reset but
does a really poor job (at least I can blindly go to tty1 via Ctrl+Alt+F1 then
reboot via Ctrl+Alt+Supr).
Attachment provided to repro the bug.
What is causing it:
Vertex Shader must use samplerBuffer on binding point 0.
Pixel Shader must use samplerCube on binding point 0.
Bind a TBO to binding point 0.
What happens:
Near full system hang, it becomes really unstable. System can be soft-rebooted
but that's it.
What should happen:
All other GPU drivers I tested with handle this gracefully by raising a
GL_INVALID_OPERATION error and continuing rendering the rest normally.
Version tested: Latest git 22cec6dc5e5a3060bc87f4a92871b4f6eef04632
I'm assigning a low priority since this GL setting combination is invalid to
begin with and I want to believe software isn't shipped like this (though
considering other GPU drivers allow to ignore the problem, I wouldn't be fully
surprised if there is faulty software out there...); though I believe the
system shouldn't hang because of this.
GL_VERSION = 4.3.0.0
GL_VENDOR = X.Org
GL_RENDERER = Gallium 0.4 on AMD CAPE VERDE (DRM 2.45.0 / 4.7.0-040700-generic,
LLVM 3.9.0)
uname -r
4.7.0-040700-generic
Cheers</pre>
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