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#17749: 24.3.91; Crash on mwheel-scroll of org file Date: Tue, 05 Aug 2014 17:21:12 +0300 Message-ID: <83r40vow4n.fsf__10547.9405996904$1407248547$gmane$org@gnu.org> References: <"018001cf84c5$6252a1c0$26f7e540$@alexiev"@ontotext.com> <8361k81wha.fsf@gnu.org> <"0b2001cfb084$b11e7a50$135b6ef0$@alexiev"@ontotext.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1407248547 22311 80.91.229.3 (5 Aug 2014 14:22:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 5 Aug 2014 14:22:27 +0000 (UTC) Cc: 17749@debbugs.gnu.org, emacs-orgmode@gnu.org To: vladimir.alexiev@ontotext.com Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Aug 05 16:22:21 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 1XEfd4-0003BQ-O7 for geb-bug-gnu-emacs@m.gmane.org; Tue, 05 Aug 2014 16:22:18 +0200 Original-Received: from localhost ([::1]:59727 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEfd4-0006hB-AD for geb-bug-gnu-emacs@m.gmane.org; Tue, 05 Aug 2014 10:22:18 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44106) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEfcw-0006fT-8J for bug-gnu-emacs@gnu.org; Tue, 05 Aug 2014 10:22:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XEfcp-0003iZ-05 for bug-gnu-emacs@gnu.org; Tue, 05 Aug 2014 10:22:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:51922) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEfco-0003iV-Sv for bug-gnu-emacs@gnu.org; Tue, 05 Aug 2014 10:22:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XEfco-0002UP-Cz for bug-gnu-emacs@gnu.org; Tue, 05 Aug 2014 10:22:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 05 Aug 2014 14:22:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17749 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 17749-submit@debbugs.gnu.org id=B17749.14072484739508 (code B ref 17749); Tue, 05 Aug 2014 14:22:02 +0000 Original-Received: (at 17749) by debbugs.gnu.org; 5 Aug 2014 14:21:13 +0000 Original-Received: from localhost ([127.0.0.1]:58865 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XEfc0-0002TH-0M for submit@debbugs.gnu.org; Tue, 05 Aug 2014 10:21:12 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:44545) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XEfbw-0002Sx-Vr for 17749@debbugs.gnu.org; Tue, 05 Aug 2014 10:21:10 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0N9U00F007NV3G00@a-mtaout20.012.net.il> for 17749@debbugs.gnu.org; Tue, 05 Aug 2014 17:21:02 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N9U00FB27V23E10@a-mtaout20.012.net.il>; Tue, 05 Aug 2014 17:21:02 +0300 (IDT) In-reply-to: <"0b2001cfb084$b11e7a50$135b6ef0$@alexiev"@ontotext.com> 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:92145 Archived-At: > From: "Vladimir Alexiev" > Cc: <17749@debbugs.gnu.org>, > > Date: Tue, 5 Aug 2014 11:10:16 +0300 > > > > 1. Open emacs-crash-test.org > > > 2. Make the window smaller (e.g. 20 lines tall) > > > 2. Roll the mouse wheel down until you see the end of file, then up. > > > 3. CRASH > > The specific org file doesn't matter. > The window size doesn't matter. > This crash happens to me occasionally (2-3 times a week), always on an org file, always on mwheel-up (which invokes mwheel-scroll). > > Eli, can you tell something from the backtrace here? > http://lists.gnu.org/archive/html/emacs-orgmode/2014-06/txtkIBvnmHi_F.txt No, sorry. I really need to reproduce this on my machine and run Emacs under a debugger to see what happens and why. Please try to come up with a recipe starting from "emacs -Q". It is OK to include customizations and loading of optional packages, but please try to find the minimal set of those, as too many of them complicate debugging. > > This is an assertion violation, not a crash. > > The failing assertion causes a crash, so I'm not sure what's the difference. > Is there an emacs build that doesn't crash on eassert() failure? If Emacs is configured without --enable-checking (which is what happens in released versions), all the eassert lines compile to nothing. > > Some assumption in the > > code turned out to be false, but it is not possible to know which one, > > and whether it's just a wrong assumption or a real problem. > > It seems the assertion does basic consistency checks of the IT structure. Yes. But without details, I cannot know what caused it or how to fix it. > What is it->bidi_p? I don't use BIDI text: this happens on ascii org files. The display engine always works in bidirectional mode, this has been so since Emacs 24.1.