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#9436: 24.0.50; Segmentation fault during redisplay Date: Sun, 04 Sep 2011 21:21:41 +0300 Message-ID: <83d3fgyxqi.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1315160554 32104 80.91.229.12 (4 Sep 2011 18:22:34 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 4 Sep 2011 18:22:34 +0000 (UTC) Cc: 9436@debbugs.gnu.org To: Helmut Eller Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Sep 04 20:22:30 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1R0HKv-0000aE-HM for geb-bug-gnu-emacs@m.gmane.org; Sun, 04 Sep 2011 20:22:29 +0200 Original-Received: from localhost ([::1]:50826 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R0HKu-0007az-R5 for geb-bug-gnu-emacs@m.gmane.org; Sun, 04 Sep 2011 14:22:28 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:49460) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R0HKs-0007aW-9r for bug-gnu-emacs@gnu.org; Sun, 04 Sep 2011 14:22:27 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R0HKr-0006a8-Cu for bug-gnu-emacs@gnu.org; Sun, 04 Sep 2011 14:22:26 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:43816) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R0HKr-0006a4-BT for bug-gnu-emacs@gnu.org; Sun, 04 Sep 2011 14:22:25 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1R0HOM-0007Cu-71; Sun, 04 Sep 2011 14:26:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 04 Sep 2011 18:26:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9436 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9436-submit@debbugs.gnu.org id=B9436.131516072127655 (code B ref 9436); Sun, 04 Sep 2011 18:26:02 +0000 Original-Received: (at 9436) by debbugs.gnu.org; 4 Sep 2011 18:25:21 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1R0HNh-0007C0-Fp for submit@debbugs.gnu.org; Sun, 04 Sep 2011 14:25:21 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1R0HNe-0007Bq-NH for 9436@debbugs.gnu.org; Sun, 04 Sep 2011 14:25:19 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0LR000700G2P3I00@a-mtaout20.012.net.il> for 9436@debbugs.gnu.org; Sun, 04 Sep 2011 21:21:39 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([84.229.83.44]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0LR0006EVGC1R370@a-mtaout20.012.net.il>; Sun, 04 Sep 2011 21:21:38 +0300 (IDT) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sun, 04 Sep 2011 14:26:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:50589 Archived-At: > From: Helmut Eller > Date: Sun, 04 Sep 2011 19:53:06 +0200 > > Last week I updated to the trunk version and now Emacs crashes once or > twice a day. As far as I can tell, I don't do anything unusual when it > happens: just reading and moving up and down with the cursor keys. This > happened in c-mode, lisp-mode and I think even in man-mode. > > I now start Emacs with (ulimit -c unlimited && emacs)& and have a core > file. The output of "bt full" is below. xbacktrace didn't show > anything, but I'm not sure if I sourced the .gdbinit correctly. Please try reproducing this in an unoptimized build. Backtraces from optimized builds are useless for debugging. It looks like it->f is NULL in frames #4 and therefore in frame #3, which is the cause of the crash. But I don't believe anything GDB displays in optimized builds, not even to backtraces.