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#18784: Coultdn't compile emacs-24.4 Date: Mon, 16 Mar 2015 15:06:22 -0400 Message-ID: References: <21763.19437.782573.339655@a1i15.kph.uni-mainz.de> <21763.21024.236293.665089@a1i15.kph.uni-mainz.de> <21766.40821.679834.521362@a1i15.kph.uni-mainz.de> <837fug29wr.fsf@gnu.org> <83sid4zthb.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1426532847 12010 80.91.229.3 (16 Mar 2015 19:07:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 16 Mar 2015 19:07:27 +0000 (UTC) Cc: ulm@gentoo.org, 18784@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 16 20:07:15 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 1YXaM2-0005QC-TR for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 20:07:11 +0100 Original-Received: from localhost ([::1]:51220 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXaM2-0004tO-58 for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 15:07:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59828) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXaLx-0004t8-Ja for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:07:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YXaLu-0008Es-Fb for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:07:05 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50320) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXaLu-0008Em-By for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:07:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YXaLt-0006Z8-V7 for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 16 Mar 2015 19:07:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18784 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18784-submit@debbugs.gnu.org id=B18784.142653278425194 (code B ref 18784); Mon, 16 Mar 2015 19:07:01 +0000 Original-Received: (at 18784) by debbugs.gnu.org; 16 Mar 2015 19:06:24 +0000 Original-Received: from localhost ([127.0.0.1]:48888 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXaLI-0006YI-L2 for submit@debbugs.gnu.org; Mon, 16 Mar 2015 15:06:24 -0400 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:56771) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXaLH-0006YB-9Y for 18784@debbugs.gnu.org; Mon, 16 Mar 2015 15:06:23 -0400 Original-Received: from ceviche.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.1/8.14.1) with ESMTP id t2GJ6MfA004891; Mon, 16 Mar 2015 15:06:22 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 14DF96615C; Mon, 16 Mar 2015 15:06:22 -0400 (EDT) In-Reply-To: <83sid4zthb.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 16 Mar 2015 20:29:20 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 1 Rules triggered RV5247=0 X-NAI-Spam-Version: 2.3.0.9393 : core <5247> : inlines <2424> : streams <1406531> : uri <1882044> 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:100552 Archived-At: > I think we don't really understand why this bug happens. At least I > have no clear idea of how PIE can cause temacs segfault. I guess if PIE is used in order to place Emacs's code at randomized addresses (different address every time an Emacs process is launched), it can break the dump because our subr objects will end up with pointers to addresses that aren't valid any more (might be other such problems, but that's the first that comes to my mind). Stefan