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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - omp_sections_nowait fails nondeterministically"
href="https://llvm.org/bugs/show_bug.cgi?id=28336">28336</a>
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</tr>
<tr>
<th>Summary</th>
<td>omp_sections_nowait fails nondeterministically
</td>
</tr>
<tr>
<th>Product</th>
<td>OpenMP
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Runtime Library
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hfinkel@anl.gov
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Running on a Intel Xeon E5-2699 with 18 cores (72 hyperthreads), the test
omp_sections_nowait fails nondeterministically. To reproduce, this works for
me:
$ ulimit -u 50000
$ for s in $(seq 1 72); do
(((/path/to/build/llvm-stage1/projects/openmp/runtime/test/worksharing/sections/Output/omp_sections_nowait.c.tmp
<span class="quote">> /dev/null 2>&1); echo $?) &); done</span >
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(as you can see, some of the tests existed with '1' instead of '0').</pre>
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</p>
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