From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#9006: 24.0.50; Abort in unshow_buffer/kill-buffer Date: Thu, 07 Jul 2011 17:47:44 +0200 Message-ID: <4E15D520.4030809@gmx.at> References: <877h7wxqjv.fsf@escher.fritz.box> <4E1429F3.1010305@gmx.at> <87oc17xlmu.fsf@escher.fritz.box> <4E156D17.8020804@gmx.at> <871uy2qvv6.fsf@escher.fritz.box> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1310054472 14780 80.91.229.12 (7 Jul 2011 16:01:12 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 7 Jul 2011 16:01:12 +0000 (UTC) Cc: 9006@debbugs.gnu.org To: Stephen Berman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jul 07 18:01:08 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 1Qer0l-0006QQ-Qi for geb-bug-gnu-emacs@m.gmane.org; Thu, 07 Jul 2011 18:01:07 +0200 Original-Received: from localhost ([::1]:44875 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qer0k-0002nF-Mp for geb-bug-gnu-emacs@m.gmane.org; Thu, 07 Jul 2011 12:01:06 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:33163) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QeqoD-0007lb-Nx for bug-gnu-emacs@gnu.org; Thu, 07 Jul 2011 11:48:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qeqo7-0003ZY-WF for bug-gnu-emacs@gnu.org; Thu, 07 Jul 2011 11:48:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:43015) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qeqo7-0003Z2-Bx for bug-gnu-emacs@gnu.org; Thu, 07 Jul 2011 11:48:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1Qeqo6-0000e7-64; Thu, 07 Jul 2011 11:48:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 07 Jul 2011 15:48:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9006 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9006-submit@debbugs.gnu.org id=B9006.13100536772471 (code B ref 9006); Thu, 07 Jul 2011 15:48:02 +0000 Original-Received: (at 9006) by debbugs.gnu.org; 7 Jul 2011 15:47:57 +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 1Qeqo0-0000do-Dk for submit@debbugs.gnu.org; Thu, 07 Jul 2011 11:47:56 -0400 Original-Received: from mailout-de.gmx.net ([213.165.64.23]) by debbugs.gnu.org with smtp (Exim 4.69) (envelope-from ) id 1Qeqny-0000da-6C for 9006@debbugs.gnu.org; Thu, 07 Jul 2011 11:47:55 -0400 Original-Received: (qmail invoked by alias); 07 Jul 2011 15:47:47 -0000 Original-Received: from 62-47-59-134.adsl.highway.telekom.at (EHLO [62.47.59.134]) [62.47.59.134] by mail.gmx.net (mp069) with SMTP; 07 Jul 2011 17:47:47 +0200 X-Authenticated: #14592706 X-Provags-ID: V01U2FsdGVkX18Qt+wkno0QdwrCengW+bZp4/SNpFQskqWo+YyGJF Na4cfmFrBTiSg0 User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) In-Reply-To: <871uy2qvv6.fsf@escher.fritz.box> X-Y-GMX-Trusted: 0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Thu, 07 Jul 2011 11:48:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:48168 Archived-At: > This time I wasn't editing but just moving around the buffer rapidly, > holding down keys like C-n, C-p, C-f, C-v etc. until Emacs didn't > respond anymore, then C-g, upon which Emacs aborted. The session was > not quite as old as the previous one, 9-10 hours. I had tried > unsuccessfully to induce the crash several times earlier in the session. I'm quite lost here. From the code it seems obvious that tabbar uses `vertical-motion' which makes a temporary buffer appear in the selected window without displaying it in order to calculate the tabs to display. Apparently, the problem is that `vertical-motion' does XSETBUFFER (w->buffer, current_buffer); but does not set_marker_both (w->pointm, buffer, BEG, BEG_BYTE); as the comment I posted earlier suggests. This makes the subsequent unshow_buffer abort. In any case, someone who knows `vertical-motion' better than me will have to look into this. martin