[Bug c++/36242] New: OpenMP multi-threading crashes

[Bug c++/36242] New: OpenMP multi-threading crashes

[eilemann at gmail dot com]

OpenMP crashes in gomp_resolve_num_threads when used concurrently from multiple
threads.

% g++-4.2 -v
Using built-in specs.
Target: i686-apple-darwin9
Configured with: /var/tmp/gcc_42/gcc_42-5553~4/src/configure --disable-checking
-enable-werror --prefix=/usr --mandir=/usr/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^.-]*$/s/$/-4.2/
--with-gxx-include-dir=/usr/include/c++/4.0.0 --with-slibdir=/usr/lib
--build=powerpc-apple-darwin9 --program-prefix= --host=i686-apple-darwin9
--target=i686-apple-darwin9
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5553)


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           Summary: OpenMP multi-threading crashes
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eilemann at gmail dot com
  GCC host triplet: Mac OS X 10.5.2, Intel Core 2 Duo 2.16GHZ, MacBook Pro
GCC target triplet: Mac OS X 10.5.2, Intel Core 2 Duo 2.16GHZ, MacBook Pro


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242

[Bug c++/36242] OpenMP multi-threading crashes

[eilemann at gmail dot com]

------- Comment #1 from eilemann at gmail dot com  2008-05-15 08:12 -------
Created an attachment (id=15641)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15641&action=view)
the preprocessed file (*.i*) that triggers the bug,


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242

[Bug c++/36242] OpenMP multi-threading crashes

[eilemann at gmail dot com]

------- Comment #2 from eilemann at gmail dot com  2008-05-15 08:13 -------
Created an attachment (id=15642)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15642&action=view)
Standalone test case - compile line within


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242

[Bug c++/36242] OpenMP multi-threading crashes

[steven at gcc dot gnu dot org]

------- Comment #3 from steven at gcc dot gnu dot org  2008-06-11 20:19 -------
Jakub is the OpenMP guru.


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steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242

[Bug c++/36242] OpenMP multi-threading crashes

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2008-06-11 20:29 -------
Using OpenMP pragmas in multiple pthread_create created threads concurrently
isn't supported in 4.2/4.3.
There is a support for it on the trunk since a few days ago though.


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jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242

[Bug c++/36242] OpenMP multi-threading crashes

[support at jawset dot com]

------- Comment #5 from support at jawset dot com  2009-04-08 10:46 -------
(In reply to comment #4)
> Using OpenMP pragmas in multiple pthread_create created threads concurrently

It also crashes when using omp pragmas from a single pthread if it is not the
main thread.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36242