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#9495: 24.0.50; Segfault in try_cursor_movement Date: Thu, 15 Sep 2011 00:41:32 -0400 Message-ID: References: <877h5ctf72.fsf@gnu.org> <87zki6sy2i.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1316061753 28691 80.91.229.12 (15 Sep 2011 04:42:33 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 15 Sep 2011 04:42:33 +0000 (UTC) Cc: bojohan@gnu.org, 9495@debbugs.gnu.org To: Leo Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Sep 15 06:42:29 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 1R43mP-00034N-BI for geb-bug-gnu-emacs@m.gmane.org; Thu, 15 Sep 2011 06:42:29 +0200 Original-Received: from localhost ([::1]:53059 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R43mO-00066I-P3 for geb-bug-gnu-emacs@m.gmane.org; Thu, 15 Sep 2011 00:42:28 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:39276) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R43mM-00065u-JE for bug-gnu-emacs@gnu.org; Thu, 15 Sep 2011 00:42:27 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R43mL-0002La-Ho for bug-gnu-emacs@gnu.org; Thu, 15 Sep 2011 00:42:26 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:35669) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R43mL-0002LS-Ey for bug-gnu-emacs@gnu.org; Thu, 15 Sep 2011 00:42:25 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1R43qn-0007vZ-EO; Thu, 15 Sep 2011 00:47:01 -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: Thu, 15 Sep 2011 04:47:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9495 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9495-submit@debbugs.gnu.org id=B9495.131606197829398 (code B ref 9495); Thu, 15 Sep 2011 04:47:01 +0000 Original-Received: (at 9495) by debbugs.gnu.org; 15 Sep 2011 04:46:18 +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 1R43q5-0007du-3y for submit@debbugs.gnu.org; Thu, 15 Sep 2011 00:46:17 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1R43px-0007bj-Kp for 9495@debbugs.gnu.org; Thu, 15 Sep 2011 00:46:11 -0400 Original-Received: from eliz by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1R43lU-0007MA-4i; Thu, 15 Sep 2011 00:41:32 -0400 In-reply-to: (message from Leo on Thu, 15 Sep 2011 11:12:32 +0800) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Thu, 15 Sep 2011 00:47:01 -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:51175 Archived-At: > From: Leo > Cc: Eli Zaretskii , 9495@debbugs.gnu.org > Date: Thu, 15 Sep 2011 11:12:32 +0800 > > On 2011-09-15 03:50 +0800, Johan Bockgård wrote: > > emacs -Q -eval '(setq line-move-visual nil truncate-lines t track-eol t)' > > > > C-u 100 x RET > > y > > > > At this point, in try_cursor_movement, point is in the "x" line, the > > window has not yet hscrolled, and the value of hpos is just after the > > last valid element in glyphs[TEXT_AREA]. > > > > (It only actually crashes some of the time, of course.) > > Does this happen with emacs-23? FWIW, I cannot get emacs-23 to crash. It cannot possibly happen with Emacs 23, because this code is part of the changes introduced in Emacs 24 for supporting display of bidirectional text. IOW, it's my fault ;-)