X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Thu, 19 Nov 2009 13:44:05 +0100 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: 1.5.25-15: pthread_join deadlocks Message-ID: <20091119124405.GF29173@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <4B052C11.6010307@ece.cmu.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B052C11.6010307@ece.cmu.edu> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Nov 19 12:29, Ryan Johnson wrote: > Hi all, > > I'm hitting a deadlock with cygwin pthreads when joining on a > short-lived thread -- for me the second such thread creation will > almost never return. It looks *exactly* like a problem that others > noticed as far back as early 2005 [0], and from the output of > strace on the test case (below) the culprit is almost certainly a > racy optimization in __cygwin_lock_* for which a patch was submitted > six months ago [1]. > > As of today my cygwin distribution is completely up to date. Any > hope of an update coming out soon? The update will be Cygwin 1.7. You testcase works fine for me on Cygwin 1.7, so maybe you should try this path. See http://cygwin.com/#beta-test Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple