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#17986: 24.3.92; Evaluating (setq default-directory nil) freezes Emacs Date: Sun, 13 Jul 2014 17:54:35 +0300 Message-ID: <834myl9ums.fsf@gnu.org> References: <87pphdwg99.fsf@rosalinde.fritz.box> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1405263330 16171 80.91.229.3 (13 Jul 2014 14:55:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 13 Jul 2014 14:55:30 +0000 (UTC) Cc: 17986@debbugs.gnu.org To: Stephen Berman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jul 13 16:55:22 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 1X6LBR-0007gp-I1 for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Jul 2014 16:55:21 +0200 Original-Received: from localhost ([::1]:52600 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X6LBR-0001kr-9b for geb-bug-gnu-emacs@m.gmane.org; Sun, 13 Jul 2014 10:55:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36719) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X6LBG-0001jp-Hm for bug-gnu-emacs@gnu.org; Sun, 13 Jul 2014 10:55:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X6LB9-0001j0-3n for bug-gnu-emacs@gnu.org; Sun, 13 Jul 2014 10:55:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:58543) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X6LB8-0001hK-Pv for bug-gnu-emacs@gnu.org; Sun, 13 Jul 2014 10:55:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1X6LB8-0004WR-96 for bug-gnu-emacs@gnu.org; Sun, 13 Jul 2014 10:55:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 13 Jul 2014 14:55:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17986 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17986-submit@debbugs.gnu.org id=B17986.140526327517340 (code B ref 17986); Sun, 13 Jul 2014 14:55:02 +0000 Original-Received: (at 17986) by debbugs.gnu.org; 13 Jul 2014 14:54:35 +0000 Original-Received: from localhost ([127.0.0.1]:53809 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X6LAh-0004Vb-2r for submit@debbugs.gnu.org; Sun, 13 Jul 2014 10:54:35 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:65146) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X6LAe-0004VL-Jx for 17986@debbugs.gnu.org; Sun, 13 Jul 2014 10:54:33 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0N8N00000NXZP100@a-mtaout20.012.net.il> for 17986@debbugs.gnu.org; Sun, 13 Jul 2014 17:54:26 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0N8N00038O2P5U60@a-mtaout20.012.net.il>; Sun, 13 Jul 2014 17:54:26 +0300 (IDT) In-reply-to: <87pphdwg99.fsf@rosalinde.fritz.box> 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:91504 Archived-At: > From: Stephen Berman > Date: Thu, 10 Jul 2014 14:27:30 +0200 > > 0. Start Emacs with -Q or -Q -D > 1. Type (setq default-directory nil) in *scratch* and evaluate it. > => Emacs freezes uninterruptibly and uses up to 90% CPU; I have to kill > it from outside. Should be fixed in revision 117376 on the emacs-24 branch. > This happens in both emacs-24 and the trunk. The C backtrace seems to > differ depending on how quickly I type `z' in gdb and whether I start > Emacs with -Q or with -Q -D. If no one else can reproduce this, I can > supply backtraces. So far, I've gotten as the only Lisp backtrace > "redisplay_internal (C function)" (twice with emacs-24 from July 7) and > (after updating to current sources) "command-error-default-function" > (twice with trunk, once with emacs-24). When Emacs becomes unresponsive, it is best to attach a debugger to a running Emacs process, and then use the procedure described in etc/DEBUG (under "If the symptom of the bug is that Emacs fails to respond") to find out which function infloops; then include this information in the bug report. Thanks.