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: Thu, 25 Sep 2014 11:02:07 +0300 Message-ID: <838ul8w2kg.fsf@gnu.org> References: <71a114476cb7a4ebf7ad7d164ff7e507@amuri.net> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1411632221 25582 80.91.229.3 (25 Sep 2014 08:03:41 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 25 Sep 2014 08:03:41 +0000 (UTC) Cc: 9436@debbugs.gnu.org To: aidalgol@amuri.net Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Sep 25 10:03:29 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 1XX41P-0008PD-OW for geb-bug-gnu-emacs@m.gmane.org; Thu, 25 Sep 2014 10:03:27 +0200 Original-Received: from localhost ([::1]:38753 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XX41P-0003dd-Al for geb-bug-gnu-emacs@m.gmane.org; Thu, 25 Sep 2014 04:03:27 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35779) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XX41E-0003Vb-MF for bug-gnu-emacs@gnu.org; Thu, 25 Sep 2014 04:03:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XX415-0002k7-D2 for bug-gnu-emacs@gnu.org; Thu, 25 Sep 2014 04:03:16 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:60004) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XX415-0002gb-Af for bug-gnu-emacs@gnu.org; Thu, 25 Sep 2014 04:03:07 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XX40z-0005fi-P3 for bug-gnu-emacs@gnu.org; Thu, 25 Sep 2014 04:03:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 25 Sep 2014 08:03:01 +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: moreinfo Original-Received: via spool by 9436-submit@debbugs.gnu.org id=B9436.141163213321733 (code B ref 9436); Thu, 25 Sep 2014 08:03:01 +0000 Original-Received: (at 9436) by debbugs.gnu.org; 25 Sep 2014 08:02:13 +0000 Original-Received: from localhost ([127.0.0.1]:51567 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XX40C-0005eP-Eq for submit@debbugs.gnu.org; Thu, 25 Sep 2014 04:02:12 -0400 Original-Received: from mtaout26.012.net.il ([80.179.55.182]:50199) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XX409-0005eF-Uf for 9436@debbugs.gnu.org; Thu, 25 Sep 2014 04:02:11 -0400 Original-Received: from conversion-daemon.mtaout26.012.net.il by mtaout26.012.net.il (HyperSendmail v2007.08) id <0NCG00700608C200@mtaout26.012.net.il> for 9436@debbugs.gnu.org; Thu, 25 Sep 2014 11:00:11 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by mtaout26.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NCG001YT68BAQ50@mtaout26.012.net.il>; Thu, 25 Sep 2014 11:00:11 +0300 (IDT) In-reply-to: <71a114476cb7a4ebf7ad7d164ff7e507@amuri.net> 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:93722 Archived-At: > Date: Thu, 25 Sep 2014 15:59:57 +1200 > From: aidalgol@amuri.net > > I think I am running into this bug. Backtrace attached. I don't think we can trust any crash backtraces from the 64-bit Cygwin-w32 builds until we understand what happens with the assertion violations in bidi.c. Let's try anyway (assuming you still have this in a debugger): > #0 0x0000000100650249 in composition_update_it (cmp_it=0x226a98, charpos=1819, bytepos=1819, string=4306700338) at composite.c:1322 > cmp = 0x226240 > i = 0 > c = 2272050 Please show what these commands print in GDB: (gdb) frame 0 (gdb) p *cmp (gdb) frame 1 (gdb) p it->cmp (gdb) p it->current And I imagine that your buffer was pure-ASCII (is that right?), so no compositions are involved and we probably shouldn't be even entering composition_update_it at all.