From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#17323: 24.3.90; SIGSEGV in mem_find (start=0x9995000) at alloc.c:3837 while GC. Date: Wed, 23 Apr 2014 18:28:07 +0300 Message-ID: <834n1k9ibc.fsf@gnu.org> References: <87fvl4xp4h.fsf@geodiff-mac3.ulb.ac.be> <83ioq09kbw.fsf@gnu.org> <5357D48A.7000809@yahoo.fr> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT X-Trace: ger.gmane.org 1398266963 18353 80.91.229.3 (23 Apr 2014 15:29:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 23 Apr 2014 15:29:23 +0000 (UTC) Cc: 17323@debbugs.gnu.org To: Nicolas Richard Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Apr 23 17:29:16 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Wcz6p-0002sX-99 for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 Apr 2014 17:29:15 +0200 Original-Received: from localhost ([::1]:33372 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wcz6o-0002vZ-Qp for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 Apr 2014 11:29:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33963) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wcz6h-0002v9-IQ for bug-gnu-emacs@gnu.org; Wed, 23 Apr 2014 11:29:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Wcz6c-0000kC-Aw for bug-gnu-emacs@gnu.org; Wed, 23 Apr 2014 11:29:07 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:48135) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Wcz6c-0000k7-8m for bug-gnu-emacs@gnu.org; Wed, 23 Apr 2014 11:29:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Wcz6b-0008VE-PI for bug-gnu-emacs@gnu.org; Wed, 23 Apr 2014 11:29:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 23 Apr 2014 15:29:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17323 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17323-submit@debbugs.gnu.org id=B17323.139826689732610 (code B ref 17323); Wed, 23 Apr 2014 15:29:01 +0000 Original-Received: (at 17323) by debbugs.gnu.org; 23 Apr 2014 15:28:17 +0000 Original-Received: from localhost ([127.0.0.1]:56292 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Wcz5s-0008Ts-CN for submit@debbugs.gnu.org; Wed, 23 Apr 2014 11:28:16 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:49356) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Wcz5p-0008Tg-3o for 17323@debbugs.gnu.org; Wed, 23 Apr 2014 11:28:14 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0N4H00G00PH4MT00@a-mtaout20.012.net.il> for 17323@debbugs.gnu.org; Wed, 23 Apr 2014 18:28:11 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N4H00G2SPMZCV70@a-mtaout20.012.net.il>; Wed, 23 Apr 2014 18:28:11 +0300 (IDT) In-reply-to: <5357D48A.7000809@yahoo.fr> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:88254 Archived-At: > Date: Wed, 23 Apr 2014 16:56:10 +0200 > From: Nicolas Richard > CC: 17323@debbugs.gnu.org > > Le 23/04/2014 16:44, Eli Zaretskii a écrit : > >> From: Nicolas Richard > >> Date: Wed, 23 Apr 2014 13:27:10 +0200 > >> > >> Ok, here's the back trace. > >> > >> 3837 while (start < p->start || start >= p->end) > >> (gdb) bt > >> #0 0x081f0bc4 in mem_find (start=0x9995000) at alloc.c:3837 > >> #1 0x081ed964 in lisp_align_free (block=0x9995000) at alloc.c:1167 > >> #2 0x081f4ffa in gc_sweep () at alloc.c:6472 > >> #3 0x081f35e1 in Fgarbage_collect () at alloc.c:5643 > > > > So what triggered the crash? is p a NULL pointer? > > I don't know. Does this answers ? > > (gdb) p p > $1 = (struct mem_node *) 0x0 Yes, this is a NULL pointer. I hope GC Gods will look into this.