From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#17411: 24.4.50; emacs_backtrace.txt Date: Tue, 13 May 2014 17:19:50 -0400 Message-ID: References: <4ed285be-ccc5-4df6-90f8-5dfd88f52d21@default> <83siofu3gf.fsf@gnu.org> <83ppjjt9mw.fsf@gnu.org> <83tx8uq23h.fsf@gnu.org> <83bnv1pi8v.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1400016030 6823 80.91.229.3 (13 May 2014 21:20:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 13 May 2014 21:20:30 +0000 (UTC) Cc: lekktu@gmail.com, 17411@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue May 13 23:20:22 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 1WkK7a-0002Ca-2I for geb-bug-gnu-emacs@m.gmane.org; Tue, 13 May 2014 23:20:22 +0200 Original-Received: from localhost ([::1]:48002 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WkK7Z-0004RB-Ic for geb-bug-gnu-emacs@m.gmane.org; Tue, 13 May 2014 17:20:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39952) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WkK7O-0004O3-Qj for bug-gnu-emacs@gnu.org; Tue, 13 May 2014 17:20:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WkK7H-0005yu-By for bug-gnu-emacs@gnu.org; Tue, 13 May 2014 17:20:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:45306) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WkK7H-0005yY-9H for bug-gnu-emacs@gnu.org; Tue, 13 May 2014 17:20:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WkK7G-0002ph-Cr for bug-gnu-emacs@gnu.org; Tue, 13 May 2014 17:20:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 13 May 2014 21:20:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17411 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 17411-submit@debbugs.gnu.org id=B17411.140001599710870 (code B ref 17411); Tue, 13 May 2014 21:20:02 +0000 Original-Received: (at 17411) by debbugs.gnu.org; 13 May 2014 21:19:57 +0000 Original-Received: from localhost ([127.0.0.1]:34424 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WkK7A-0002pG-Iu for submit@debbugs.gnu.org; Tue, 13 May 2014 17:19:56 -0400 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:59414) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WkK77-0002p5-Ri for 17411@debbugs.gnu.org; Tue, 13 May 2014 17:19:54 -0400 Original-Received: from fmsmemgm.homelinux.net (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id s4DLJp7j021866; Tue, 13 May 2014 17:19:51 -0400 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id DEEF4AE173; Tue, 13 May 2014 17:19:50 -0400 (EDT) In-Reply-To: <83bnv1pi8v.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 13 May 2014 22:54:08 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV4941=0 X-NAI-Spam-Version: 2.3.0.9378 : core <4941> : inlines <864> : streams <1181933> : uri <1755930> 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:89047 Archived-At: >> The "eassert (length (i) > 0)" does catch this case already. We could >> add another assert which is looser (i.e. one that would not be caught by >> a "somewhat sane interval with a non-positive length"), but I'm not sure >> how to formally define "hopelessly messed up". > You could display the values on your system in a debugger, and after > some time you should have a good idea what isn't messed up. The problem is that it's not worth the trouble: knowing if the values are sane or not isn't that interesting, so we'd really want to *see* the values. I'd "fprintf (stderr, ...)", but that wouldn't work under w32 would it? Stefan