From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: nljlistbox2@gmail.com (N. Jackson) Newsgroups: gmane.emacs.bugs Subject: bug#20808: 24.5; Emacs looping with 100% CPU at line 15287 (?) of xdisp.c Date: Sun, 14 Jun 2015 16:16:47 -0300 Message-ID: <878ubmayn4.fsf@moondust.localdomain> References: <87mw03j57i.fsf@moondust.localdomain> <83ioaqpel9.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1434309919 6626 80.91.229.3 (14 Jun 2015 19:25:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 14 Jun 2015 19:25:19 +0000 (UTC) Cc: 20808@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jun 14 21:25:09 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 1Z4DWm-0006US-Dm for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Jun 2015 21:25:08 +0200 Original-Received: from localhost ([::1]:59393 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4DWl-0002ie-PT for geb-bug-gnu-emacs@m.gmane.org; Sun, 14 Jun 2015 15:25:07 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60396) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4DP0-0000gJ-DB for bug-gnu-emacs@gnu.org; Sun, 14 Jun 2015 15:17:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z4DOx-0000CT-4y for bug-gnu-emacs@gnu.org; Sun, 14 Jun 2015 15:17:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39601) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4DOx-0000C2-25 for bug-gnu-emacs@gnu.org; Sun, 14 Jun 2015 15:17:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Z4DOw-0003Ks-Dr for bug-gnu-emacs@gnu.org; Sun, 14 Jun 2015 15:17:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: nljlistbox2@gmail.com (N. 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[96.30.139.235]) by mx.google.com with ESMTPSA id j3sm5963704igx.21.2015.06.14.12.16.48 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Jun 2015 12:16:48 -0700 (PDT) In-Reply-To: <83ioaqpel9.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 14 Jun 2015 17:08:34 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5.50 (gnu/linux) 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:103945 Archived-At: At 11:08 -0300 on Sunday 2015-06-14, Eli Zaretskii wrote: > Yes, the information you collected is useful, thanks. If you could > come up with a reproducible recipe for this, it would be even better. > Failing that, I could give you instructions regarding GDB commands > that will collect some more data, in the hope that the data will allow > to come up with a fix. Well, I don't know exactly what I was doing to trigger the problem. I suspect it happenned when I clicked a link in an email in Gnus, which opened a web page in Eww. (It may have been relevant that I then 1) scrolled in the Eww window and 2) that I hit `&' to open the web page in an external browser -- not necessarilly in that order.) It might be relevant that the web page contained quite a lot of images, mostly small, and that Gnus opens Eww in the short (eleven lines high) Summary buffer window. [The typical view in Gnus when reading mail has the frame divided horizontally (a top and a bottom window), with the short Summary buffer window on top displaying the list of mail in the current "group" (mail box/folder/directory), and a taller window at the bottom (the Article buffer) displaying the content of the mail that is currently selected in the Summary buffer.] I was going to say that I doubt that I can reproduce the problem but while trying the steps above, it happenned again. It seemed (perhaps) to happen after scrolling the Eww window with the scroll thumb. The backtrace was the same. I haven't been able to reproduce the problem in my own build of Emacs 24.5, but I don't know yet if that's because I haven't taken exactly the same steps, or if it's because of different build settings. [I haven't reproduced the problem on master either, but there things are different so I don't expect to. Eww now no longer dispays in the short window, but in the taller one, and the Eww page layout is simpler and cleaner.] I will work on finding a simple reproducible recipe for the Fedora 21 build (preferably removing Gnus from the equation), and will also see if I can reproduce the problem in my own build. Meanwhile, if you think it is worth trying to debug the problem in the Fedora 21 optimised build, please send instructions for steps to take in GDB. I still have GDB attached to it. Thanks.