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Date:      Wed, 18 Feb 2009 10:05:28 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        Bruce Simpson <bms@incunabulum.net>
Cc:        svn-src-stable@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, svn-src-stable-7@freebsd.org
Subject:   Re: svn commit: r188727 - in stable/7: sys sys/contrib/pf sys/dev/ath/ath_hal sys/dev/cxgb sys/kern sys/modules/sem sys/sys tools/regression/posixsem usr.bin/procstat
Message-ID:  <200902181005.28625.jhb@freebsd.org>
In-Reply-To: <499C1843.90008@incunabulum.net>
References:  <200902171957.n1HJvqk8026145@svn.freebsd.org> <499BC43B.6030701@incunabulum.net> <499C1843.90008@incunabulum.net>

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On Wednesday 18 February 2009 9:16:35 am Bruce Simpson wrote:
> Bruce Simpson wrote:
> > ....
> > FYI:
> > This change *may* fix Python 2.6's 'multiprocessing' module on FreeBSD 
> > 7-STABLE, which is known to have problems there; it depends on POSIX 
> > semaphores to synchronize its IPC between different fork()'s of the 
> > Python interpreter.
> > If anyone else has an interest in ths they may wish to test, if not, I 
> > will try to get around to it eventually.
> 
> I just tested this and Python 2.5 still dumps core in sem_open() when 
> called from semlock_new() in _multiprocessing.so, this is with the most 
> recent back-port of multiprocessing to Python 2.5:
>     http://pypi.python.org/pypi/multiprocessing

Do you have a core dump with symbols?  If so, can you get the trace?

-- 
John Baldwin



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