From owner-freebsd-hackers@FreeBSD.ORG Tue Jun 24 12:46:21 2014 Return-Path: <owner-freebsd-hackers@FreeBSD.ORG> Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 72F00966 for <freebsd-hackers@freebsd.org>; Tue, 24 Jun 2014 12:46:21 +0000 (UTC) Received: from mo1.mail-out.ovh.net (19.mo1.mail-out.ovh.net [178.32.97.206]) by mx1.freebsd.org (Postfix) with ESMTP id 3519824E6 for <freebsd-hackers@freebsd.org>; Tue, 24 Jun 2014 12:46:19 +0000 (UTC) Received: from mail636.ha.ovh.net (b6.ovh.net [213.186.33.56]) by mo1.mail-out.ovh.net (Postfix) with SMTP id BFD8DFF9492 for <freebsd-hackers@freebsd.org>; Tue, 24 Jun 2014 12:17:00 +0200 (CEST) Received: from b0.ovh.net (HELO queueout) (213.186.33.50) by b0.ovh.net with SMTP; 24 Jun 2014 12:17:02 +0200 Received: from user-31-174-26-85.play-internet.pl (HELO starpad.nine) (grzegorz@blach.pl@31.174.26.85) by ns0.ovh.net with SMTP; 24 Jun 2014 12:16:59 +0200 Message-ID: <53A95016.3090901@blach.pl> Date: Tue, 24 Jun 2014 12:16:54 +0200 From: Grzegorz Blach <grzegorz@blach.pl> User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Subject: Crash probably in libthr Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Ovh-Tracer-Id: 5772207348915068635 X-Ovh-Remote: 31.174.26.85 (user-31-174-26-85.play-internet.pl) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: 0 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejfedrtddtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecu X-Spam-Check: DONE|U 0.5/N X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: 0 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejfedrtddtucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecu X-Mailman-Approved-At: Tue, 24 Jun 2014 13:05:49 +0000 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Technical Discussions relating to FreeBSD <freebsd-hackers.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/> List-Post: <mailto:freebsd-hackers@freebsd.org> List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 24 Jun 2014 12:46:21 -0000 On https://phab.enlightenment.org/T1330 I reported a crash in Enlightenment. After analyzing backtraces from valgrind and gdb we think this might be a bug in libthr. Backtrace from valgrind: https://phab.enlightenment.org/file/data/wlcvu7kmb5blxmgtnk2p/PHID-FILE-dimurhxlz4tvytoxnfup/valgrind2.log Backtrace from gdb: https://phab.enlightenment.org/file/data/zvbelqzjt4h3ppates6a/PHID-FILE-dsnaw3golsozpzlb7uqe/gdb2.log Have any one known what /usr/src/lib/libthr/arch/amd64/amd64/_umtx_op_err.S:37 does?