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Date:      Wed, 18 Feb 2009 14:16:35 +0000
From:      Bruce Simpson <bms@incunabulum.net>
To:        John Baldwin <jhb@FreeBSD.org>
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:  <499C1843.90008@incunabulum.net>
In-Reply-To: <499BC43B.6030701@incunabulum.net>
References:  <200902171957.n1HJvqk8026145@svn.freebsd.org> <499BC43B.6030701@incunabulum.net>

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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

cheers
BMS



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