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#15907: 24.3; Emacs crash due to substitute-command-keys and after-change-functions Date: Sat, 16 Nov 2013 11:31:16 +0200 Message-ID: <83siuwhevv.fsf@gnu.org> References: <20131115.212301.505338034.artur.malabarba@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1384594337 16023 80.91.229.3 (16 Nov 2013 09:32:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 16 Nov 2013 09:32:17 +0000 (UTC) Cc: 15907@debbugs.gnu.org To: Artur Malabarba Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Nov 16 10:32:21 2013 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 1VhcEm-00058P-HC for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Nov 2013 10:32:20 +0100 Original-Received: from localhost ([::1]:35226 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VhcEm-0005zB-3Z for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Nov 2013 04:32:20 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57172) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VhcEb-0005yo-OU for bug-gnu-emacs@gnu.org; Sat, 16 Nov 2013 04:32:17 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VhcEU-0000C0-E8 for bug-gnu-emacs@gnu.org; Sat, 16 Nov 2013 04:32:09 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:42645) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VhcEU-0000Bw-Af for bug-gnu-emacs@gnu.org; Sat, 16 Nov 2013 04:32:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VhcET-0000CR-UO for bug-gnu-emacs@gnu.org; Sat, 16 Nov 2013 04:32:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 16 Nov 2013 09:32:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15907 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15907-submit@debbugs.gnu.org id=B15907.1384594298729 (code B ref 15907); Sat, 16 Nov 2013 09:32:01 +0000 Original-Received: (at 15907) by debbugs.gnu.org; 16 Nov 2013 09:31:38 +0000 Original-Received: from localhost ([127.0.0.1]:56664 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VhcE5-0000Bh-Pi for submit@debbugs.gnu.org; Sat, 16 Nov 2013 04:31:37 -0500 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:65061) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VhcE2-0000BS-Jx for 15907@debbugs.gnu.org; Sat, 16 Nov 2013 04:31:36 -0500 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0MWC00F00NHYKO00@a-mtaout20.012.net.il> for 15907@debbugs.gnu.org; Sat, 16 Nov 2013 11:31:28 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MWC00F82NSFEX50@a-mtaout20.012.net.il>; Sat, 16 Nov 2013 11:31:28 +0200 (IST) In-reply-to: <20131115.212301.505338034.artur.malabarba@gmail.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:80633 Archived-At: > Date: Fri, 15 Nov 2013 21:23:01 +0000 (GMT) > From: Artur Malabarba > > Emacs crashes whenever `substitute-command-keys' is invoked and one of > the functions in `after-change-functions' contains a call similar to > `(format "%s" 1)'. > > To reproduce: > > 1. Start `emacs -Q'; > 2. Evaluate the following two statements: > (add-hook 'after-change-functions (lambda (&rest a) (format "%s" 1))) > (substitute-command-keys "\\{emacs-lisp-mode-map}") > 3. That's it. Emacs crashes. > > The crash doesn't happen if you replace the number 1 with a string or > a symbol, but it does also happen if you replace it with a list. It no longer crashes after changes in trunk revision 115119. > This is most annoying as it causes a crash whenever `describe-mode' is > invoked. Since you didn't show any real-life use cases, I'm not sure that the result is what you wanted, please do check.