From owner-svn-src-all@FreeBSD.ORG Wed Feb 18 15:55:05 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E79DA106566C; Wed, 18 Feb 2009 15:55:05 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id B45598FC16; Wed, 18 Feb 2009 15:55:05 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (pool-98-109-39-197.nwrknj.fios.verizon.net [98.109.39.197]) by cyrus.watson.org (Postfix) with ESMTPSA id 5989946B03; Wed, 18 Feb 2009 10:55:05 -0500 (EST) Received: from localhost (john@localhost [127.0.0.1]) (authenticated bits=0) by server.baldwin.cx (8.14.3/8.14.3) with ESMTP id n1IFsrIV043674; Wed, 18 Feb 2009 10:54:59 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: Bruce Simpson Date: Wed, 18 Feb 2009 10:54:35 -0500 User-Agent: KMail/1.9.7 References: <200902171957.n1HJvqk8026145@svn.freebsd.org> <200902181005.28625.jhb@freebsd.org> <499C269D.7030406@incunabulum.net> In-Reply-To: <499C269D.7030406@incunabulum.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200902181054.35709.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [127.0.0.1]); Wed, 18 Feb 2009 10:54:59 -0500 (EST) X-Virus-Scanned: ClamAV 0.94.2/9002/Wed Feb 18 06:16:50 2009 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx 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 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Feb 2009 15:55:06 -0000 On Wednesday 18 February 2009 10:17:49 am Bruce Simpson wrote: > John Baldwin wrote: > > ... > > > >> 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? > > > > Here you are... have runtime ELF symbols but no line numbers. > > I had to comment out some stuff in its "setup.py" to persuade the > _multiprocessing C shim to use sem_open() (remove freebsd7 and/or > freebsd8 from that file before "python setup.py config" and "python > setup.py build"). > > I was running the Doc/includes/mp_benchmarks.py file which ships with > multiprocessing. > > multiprocessing is part of Python 2.6 base now, so likely what is Not OK > in the backport, would need to be forward-ported when it is happy with > sem_open() in Python 2.5. Hmm, by symbols I meant having things built with debug symbols (i.e. "-g"). Also, do you have 'sem.ko' loaded? The only reason I can think of why you would get a core dump in ksem_open() itself would be if you got a SIGSYS because the module wasn't loaded. -- John Baldwin