From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.bugs Subject: bug#15688: 24.3.50; clear-temporary-overlay-map Date: Fri, 07 Mar 2014 13:39:21 -0500 Message-ID: References: <52E1DCC7.7000609@yandex.ru> <83txctcsi6.fsf@gnu.org> <83wqhob0kc.fsf@gnu.org> <83a9ejbdpt.fsf@gnu.org> Reply-To: rms@gnu.org NNTP-Posting-Host: plane.gmane.org Content-Type: text/plain; charset=ISO-8859-15 X-Trace: ger.gmane.org 1394217600 6919 80.91.229.3 (7 Mar 2014 18:40:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 7 Mar 2014 18:40:00 +0000 (UTC) Cc: 15688@debbugs.gnu.org To: monnier@IRO.UMontreal.CA Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Mar 07 19:40:09 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 1WLzgm-0007yO-TX for geb-bug-gnu-emacs@m.gmane.org; Fri, 07 Mar 2014 19:40:09 +0100 Original-Received: from localhost ([::1]:37839 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLzgm-0004tK-IO for geb-bug-gnu-emacs@m.gmane.org; Fri, 07 Mar 2014 13:40:08 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33842) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLzgj-0004sk-AY for bug-gnu-emacs@gnu.org; Fri, 07 Mar 2014 13:40:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WLzgi-0001ZT-7F for bug-gnu-emacs@gnu.org; Fri, 07 Mar 2014 13:40:05 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53964) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WLzgi-0001YA-3N for bug-gnu-emacs@gnu.org; Fri, 07 Mar 2014 13:40:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1WLzgh-0007Qx-GF for bug-gnu-emacs@gnu.org; Fri, 07 Mar 2014 13:40:03 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Richard Stallman Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 07 Mar 2014 18:40:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15688 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 15688-submit@debbugs.gnu.org id=B15688.139421756928512 (code B ref 15688); Fri, 07 Mar 2014 18:40:03 +0000 Original-Received: (at 15688) by debbugs.gnu.org; 7 Mar 2014 18:39:29 +0000 Original-Received: from localhost ([127.0.0.1]:55146 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WLzg5-0007Ph-9L for submit@debbugs.gnu.org; Fri, 07 Mar 2014 13:39:29 -0500 Original-Received: from fencepost.gnu.org ([208.118.235.10]:35606) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1WLzg2-0007PY-Vc for 15688@debbugs.gnu.org; Fri, 07 Mar 2014 13:39:23 -0500 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.71) (envelope-from ) id 1WLzg1-0005Et-VX; Fri, 07 Mar 2014 13:39:22 -0500 In-reply-to: <83a9ejbdpt.fsf@gnu.org> (message from Eli Zaretskii on Sun, 26 Jan 2014 05:53:50 +0200) 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:86631 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] It crashed again. This time the slot pointed to was again in Fgarbage_collect, but it was 80(sp). That's where the variable message_p (char) is stored. The value of message_p is 0, but it happens that the low 8 bits of the address of clear-temporary-map are zero, so storing the value of message_p into that byte didn't alter the pointer in the word. What seems fishy here is that clear-temporary-map still points to that vectorlike even though the vectorlike has been freed. Maybe that's where the real bug is. Why didn't this code #if GC_MARK_STACK symbol_free_list->function = Vdead; #endif prevent the problem? -- Dr Richard Stallman President, Free Software Foundation 51 Franklin St Boston MA 02110 USA www.fsf.org www.gnu.org Skype: No way! That's nonfree (freedom-denying) software. Use Ekiga or an ordinary phone call.