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#9760: 24.0.50; crash Date: Sun, 16 Oct 2011 08:40:36 -0400 Message-ID: References: <83lisnjk5b.fsf@gnu.org> <83obxivur1.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1318768887 11916 80.91.229.12 (16 Oct 2011 12:41:27 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 16 Oct 2011 12:41:27 +0000 (UTC) Cc: 9760@debbugs.gnu.org To: rms@gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Oct 16 14:41:23 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 1RFQ1q-00021g-6V for geb-bug-gnu-emacs@m.gmane.org; Sun, 16 Oct 2011 14:41:22 +0200 Original-Received: from localhost ([::1]:38558 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RFQ1p-0005RA-78 for geb-bug-gnu-emacs@m.gmane.org; Sun, 16 Oct 2011 08:41:21 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:35899) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RFQ1n-0005R1-1w for bug-gnu-emacs@gnu.org; Sun, 16 Oct 2011 08:41:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RFQ1l-00055a-G6 for bug-gnu-emacs@gnu.org; Sun, 16 Oct 2011 08:41:19 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:56667) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RFQ1l-00055P-EZ for bug-gnu-emacs@gnu.org; Sun, 16 Oct 2011 08:41:17 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1RFQ2U-0003Yl-3I for bug-gnu-emacs@gnu.org; Sun, 16 Oct 2011 08:42:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 16 Oct 2011 12:42:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9760 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9760-submit@debbugs.gnu.org id=B9760.131876889513647 (code B ref 9760); Sun, 16 Oct 2011 12:42:02 +0000 Original-Received: (at 9760) by debbugs.gnu.org; 16 Oct 2011 12:41:35 +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 1RFQ22-0003Y3-Ed for submit@debbugs.gnu.org; Sun, 16 Oct 2011 08:41:34 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1RFQ1z-0003Xw-EK for 9760@debbugs.gnu.org; Sun, 16 Oct 2011 08:41:32 -0400 Original-Received: from eliz by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1RFQ16-0004C6-Jf; Sun, 16 Oct 2011 08:40:36 -0400 In-reply-to: (message from Richard Stallman on Sun, 16 Oct 2011 07:19:48 -0400) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sun, 16 Oct 2011 08:42:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) 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:52682 Archived-At: > Date: Sun, 16 Oct 2011 07:19:48 -0400 > From: Richard Stallman > CC: 9760@debbugs.gnu.org > > > #0 0x0043ff40 in set_cursor_from_row (w=0x8ee928, row=0xc558cc, > > matrix=0x8eef58, delta=0, delta_bytes=0, dy=0, dvpos=0) at xdisp.c:13693 > > Line 13693 of xdisp.c is this: > > while (/* not marched to end of glyph row */ > > This cannot possibly crash. > > It must be an optimization weirdness, because I have not updated that source > file since compiling. I updated and recompiled specifically to reproduce > this in the latest sources. > > It crashes with SEGV. > > I can recompile with -O0 if that helps. Yes, please. Backtraces from optimized builds are useless for debugging.