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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 - vulkaninfo fails with "trap divide error""
href="https://bugs.freedesktop.org/show_bug.cgi?id=102571">102571</a>
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<th>Summary</th>
<td>vulkaninfo fails with "trap divide error"
</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>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (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
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<th>Component</th>
<td>Drivers/Vulkan/radeon
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>danielrf12@gmail.com
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</tr>
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=134033" name="attach_134033" title="backtrace of vulkaninfo crash">attachment 134033</a> <a href="attachment.cgi?id=134033&action=edit" title="backtrace of vulkaninfo crash">[details]</a></span>
backtrace of vulkaninfo crash
While testing vulkan support for my 390x on git master, I ran across the
following issue.
Running vulkaninfo crashes and this line shows up in the journal:
traps: vulkaninfo[30227] trap divide error ip:7f9777251563 sp:7fff7aa100e8
error:0 in libvulkan_radeon.so[7f97771ed000+1a5000]
I also ran git-bisect, which indicates that this issue was caused by the commit
180c1b924e1ed3a2918fad9c5cbb653524de8233
Attached is a backtrace of when it crashes, which is in
radv_pipeline_scratch_init of src/vulkan/radv_pipeline.c. The only divide by
zero error that looks possible in that function is on line 763 if
pipeline->shaders[i]->config.num_vgprs is zero.
Additional information:
Running 4.13.0 kernel on NixOS</pre>
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