[Bug 261360] OpenMP: Program crashes when hidden helper threads are enabled

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 20 Jan 2022 17:31:47 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261360

            Bug ID: 261360
           Summary: OpenMP: Program crashes when hidden helper threads are
                    enabled
           Product: Base System
           Version: 13.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: misc
          Assignee: bugs@FreeBSD.org
          Reporter: yuri@freebsd.org

The port graphics/art crashes in run-time when built with OPENMP=ON (rev.
695bbdaf28d956bdb9f274343dd8a5ca5713a796).
Adding the environment variable LIBOMP_NUM_HIDDEN_HELPER_THREADS=0 in the
run-time eliminates the crash.


Discussion about addition of hidden helper threads:
https://reviews.llvm.org/D77609

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