From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9597 invoked by alias); 6 Aug 2012 14:20:20 -0000 Received: (qmail 9578 invoked by uid 22791); 6 Aug 2012 14:20:18 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 06 Aug 2012 14:20:05 +0000 From: "architectbum at hotmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/54185] condition_variable not properly destructed Date: Mon, 06 Aug 2012 14:20:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: architectbum at hotmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: redi at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-08/txt/msg00339.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54185 --- Comment #3 from architectbum at hotmail dot com 2012-08-06 14:20:03 UTC --- Because the problem is in thread-handling code, it's impossible to create a completely deterministic testcase; however, the newly-attached testcase.cc (compiled with 'g++-4.7.1 --std=c++11 -pthread') consistently behaves as described for me. (Adjusting the NUM_THREADS seems to help reproduce the problem on different machines.) The testcase fails with a segfault in pthread_cond_wait using the unpatched libstdc++ and completes normally with the patched lib.