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#12402: 24.2.50; Crash switching to ibuffer Date: Mon, 10 Sep 2012 21:13:27 +0300 Message-ID: <838vchlpa0.fsf@gnu.org> References: <504DFC16.9030601@solarflare.com> <83fw6plth8.fsf@gnu.org> <504E1EE2.7030605@solarflare.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1347300879 10559 80.91.229.3 (10 Sep 2012 18:14:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 10 Sep 2012 18:14:39 +0000 (UTC) Cc: 12402@debbugs.gnu.org To: Andy Moreton Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Sep 10 20:14:42 2012 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 1TB8VN-0003QY-00 for geb-bug-gnu-emacs@m.gmane.org; Mon, 10 Sep 2012 20:14:41 +0200 Original-Received: from localhost ([::1]:39321 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TB8VJ-0000Bf-Hi for geb-bug-gnu-emacs@m.gmane.org; Mon, 10 Sep 2012 14:14:37 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:55656) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TB8VD-0000B7-2B for bug-gnu-emacs@gnu.org; Mon, 10 Sep 2012 14:14:35 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TB8V9-00043o-23 for bug-gnu-emacs@gnu.org; Mon, 10 Sep 2012 14:14:30 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:43171) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TB8V8-00043i-Uj for bug-gnu-emacs@gnu.org; Mon, 10 Sep 2012 14:14:26 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TB8Vi-0007Wb-CP for bug-gnu-emacs@gnu.org; Mon, 10 Sep 2012 14:15:02 -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: Mon, 10 Sep 2012 18:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 12402 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 12402-submit@debbugs.gnu.org id=B12402.134730084628853 (code B ref 12402); Mon, 10 Sep 2012 18:15:02 +0000 Original-Received: (at 12402) by debbugs.gnu.org; 10 Sep 2012 18:14:06 +0000 Original-Received: from localhost ([127.0.0.1]:52716 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TB8Uk-0007VF-2v for submit@debbugs.gnu.org; Mon, 10 Sep 2012 14:14:06 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:42362) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TB8Uf-0007Uh-5h for 12402@debbugs.gnu.org; Mon, 10 Sep 2012 14:14:01 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0MA500H00BW1BV00@a-mtaout20.012.net.il> for 12402@debbugs.gnu.org; Mon, 10 Sep 2012 21:13:20 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MA500GQPBY76NM0@a-mtaout20.012.net.il>; Mon, 10 Sep 2012 21:13:20 +0300 (IDT) In-reply-to: <504E1EE2.7030605@solarflare.com> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list 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:64070 Archived-At: > Date: Mon, 10 Sep 2012 18:09:54 +0100 > From: Andy Moreton > > On 10/09/2012 17:42, Eli Zaretskii wrote: > >> Date: Mon, 10 Sep 2012 15:41:26 +0100 > >> From: Andy Moreton > >> > >> During normal editing I tried to switch to the ibuffer buffer, and emacs > >> aborted (backtrace below). Built from a clean bootstrap of r109965. > > > > Any chance of a repeatable recipe? > > > Alas no - I've not managed to get it to crash again. What would be useful to > look at if I can trigger another abort ? The entire linked list of heaps, for starters, and the break_value. The loop before the crash locus shows how: for (h = last_heap; h && break_value < h->end; h = h->prev) { excess += (char *) h->end - (char *) ((break_value < h->bloc_start) ? h->bloc_start : break_value); } I always thought that we should have only one heap on MS-Windows, so first_heap and last_heap should be the same. That's because on Windows we reserve the entire range of addresses at startup, as a single contiguous chunk. But maybe I was mistaken...