From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Leo Newsgroups: gmane.emacs.bugs Subject: bug#9079: integer overflow etc. issues (e.g., image crashes Emacs) Date: Thu, 14 Jul 2011 20:54:48 +0800 Message-ID: References: <4E1EA0FB.5070903@cs.ucla.edu> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1310648431 9635 80.91.229.12 (14 Jul 2011 13:00:31 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 14 Jul 2011 13:00:31 +0000 (UTC) Cc: 9079@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jul 14 15:00:26 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 1QhLWk-0007hS-8e for geb-bug-gnu-emacs@m.gmane.org; Thu, 14 Jul 2011 15:00:26 +0200 Original-Received: from localhost ([::1]:58032 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QhLWj-0000KL-69 for geb-bug-gnu-emacs@m.gmane.org; Thu, 14 Jul 2011 09:00:25 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:43459) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QhLSZ-0007lD-Lj for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2011 08:56:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QhLSW-0006X1-1q for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2011 08:56:07 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:55481) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QhLSV-0006Wx-Of for bug-gnu-emacs@gnu.org; Thu, 14 Jul 2011 08:56:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QhLSV-0000FY-5x; Thu, 14 Jul 2011 08:56:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Leo Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 14 Jul 2011 12:56:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9079 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 9079-submit@debbugs.gnu.org id=B9079.1310648108888 (code B ref 9079); Thu, 14 Jul 2011 12:56:02 +0000 Original-Received: (at 9079) by debbugs.gnu.org; 14 Jul 2011 12:55:08 +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 1QhLRb-0000EH-L7 for submit@debbugs.gnu.org; Thu, 14 Jul 2011 08:55:07 -0400 Original-Received: from mail-iw0-f172.google.com ([209.85.214.172]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QhLRZ-0000Ds-9F for 9079@debbugs.gnu.org; Thu, 14 Jul 2011 08:55:06 -0400 Original-Received: by iwn39 with SMTP id 39so167559iwn.3 for <9079@debbugs.gnu.org>; Thu, 14 Jul 2011 05:54:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-type; bh=OGkX8WISRrcIR8e1/88wfDywSw5Y9Dmz7pvW4zNac+Y=; b=tWCdRHE7JmwsRhpGdsL4QlFcsoj4wf175ryeRS06rqt5groJYricMOwVt+R85HqdsU uFLmDQk2bRoJt+SK+PTPewm5U1DXCW5+OtrSKbdWq/39kPqowKsWcorLdhxHPKn/BBeM 9yWOMxcoe7tEXcG1sPttTG9e12DXcx6yNeIe8= Original-Received: by 10.42.175.72 with SMTP id az8mr2198542icb.99.1310648099537; Thu, 14 Jul 2011 05:54:59 -0700 (PDT) Original-Received: from localhost ([114.247.10.75]) by mx.google.com with ESMTPS id o1sm285349ict.20.2011.07.14.05.54.55 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 14 Jul 2011 05:54:58 -0700 (PDT) In-Reply-To: <4E1EA0FB.5070903@cs.ucla.edu> (Paul Eggert's message of "Thu, 14 Jul 2011 00:55:39 -0700") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3.50 (Mac OS X 10.6.7) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Thu, 14 Jul 2011 08:56:03 -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:48984 Archived-At: On 2011-07-14 15:55 +0800, Paul Eggert wrote: > Here's an example bug. Take the attached file 46341x46341.png.gz, > uncompress it with 'gunzip', start up Emacs under X Windows, execute > (setq max-image-size 50000), and then visit the file 46341x46341.png. > If you're lucky Emacs will thrash around for quite some time and then > dump core. If you're unlucky Emacs's internal data structures will be > silently corrupted. A long time ago I found that emacs-w3m tend to crash emacs when loading images. So I have the following in my setup. ;;; Don't open any images in w3m; it causes crashes. This function was ;;; originally defined in w3m-ems. (defalias 'w3m-image-type-available-p 'ignore) Leo