From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#20331: 24.5.50; stack trace of a segfault when using eww Date: Fri, 25 Dec 2015 07:07:06 +0100 Message-ID: <8737urf4dx.fsf@gnus.org> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1451023704 6222 80.91.229.3 (25 Dec 2015 06:08:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 25 Dec 2015 06:08:24 +0000 (UTC) Cc: 20331@debbugs.gnu.org To: Richard Kim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 25 07:08:13 2015 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 1aCLXw-0007ir-0A for geb-bug-gnu-emacs@m.gmane.org; Fri, 25 Dec 2015 07:08:12 +0100 Original-Received: from localhost ([::1]:34346 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCLXu-0002xM-LI for geb-bug-gnu-emacs@m.gmane.org; Fri, 25 Dec 2015 01:08:10 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49130) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCLXq-0002w1-4V for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 01:08:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aCLXm-00017f-3p for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 01:08:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:54726) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCLXm-00017Z-0e for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 01:08:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aCLXl-0000YU-N2 for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 01:08:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 25 Dec 2015 06:08:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20331 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20331-submit@debbugs.gnu.org id=B20331.14510236532091 (code B ref 20331); Fri, 25 Dec 2015 06:08:01 +0000 Original-Received: (at 20331) by debbugs.gnu.org; 25 Dec 2015 06:07:33 +0000 Original-Received: from localhost ([127.0.0.1]:34093 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aCLXJ-0000XZ-C8 for submit@debbugs.gnu.org; Fri, 25 Dec 2015 01:07:33 -0500 Original-Received: from hermes.netfonds.no ([80.91.224.195]:39924) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aCLXH-0000XQ-Hs for 20331@debbugs.gnu.org; Fri, 25 Dec 2015 01:07:32 -0500 Original-Received: from 2.150.58.24.tmi.telenormobil.no ([2.150.58.24] helo=mouse) by hermes.netfonds.no with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1aCLWt-0002Cm-M0; Fri, 25 Dec 2015 07:07:07 +0100 In-Reply-To: (Richard Kim's message of "Tue, 14 Apr 2015 08:12:24 -0700") User-Agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.1.50 (gnu/linux) X-MailScanner-ID: 1aCLWt-0002Cm-M0 MailScanner-NULL-Check: 1451628427.94071@fL5mE6JiPN5gW+ebtjuP6A X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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:110364 Archived-At: Richard Kim writes: > You should be able to save this email as an org file for more pleasant > viewing. The table of contents of this email is > > Summary of the problem > Stack Trace > bt full > Info inserted by M-x report-emacs-bug > > * Summary of the problem > > Emacs segfaults very often; just using eww (and even w3m) for few > minutes usually does it for me. So I compiled latest emacs from > emacs-24 branch with CFLAGS=-ggdb3 among others. I then started first > emacs, then launched second emacs under gdb of the first. I was able > to get a stack trace of the segfault when I was using eww. > > * Stack Trace > > The stack trace seems to have resulted due to derefencing a null > pointer in line image.c:7469 shown here > > : img->corners[TOP_CORNER] = gif->SavedImages[0].ImageDesc.Top; > > where =gif=>SavedImages= is 0 as shown below: Do you have an example image that makes Emacs segfault? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no