From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel,gmane.comp.lib.glibc.alpha Subject: Re: Removal of unexec support from glibc malloc Date: Sat, 23 Jan 2016 00:49:02 -0500 Message-ID: References: <569CDB81.6040600@redhat.com> <569D3BE0.6050103@cs.ucla.edu> <569D4207.4060209@cs.ucla.edu> <569D6AE6.1060008@redhat.com> <83bn8icjqu.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1453528186 12483 80.91.229.3 (23 Jan 2016 05:49:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 23 Jan 2016 05:49:46 +0000 (UTC) Cc: libc-alpha@sourceware.org To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 23 06:49:37 2016 Return-path: Envelope-to: ged-emacs-devel@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 1aMr4q-0000UY-H1 for ged-emacs-devel@m.gmane.org; Sat, 23 Jan 2016 06:49:36 +0100 Original-Received: from localhost ([::1]:56327 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMr4p-0000bC-M8 for ged-emacs-devel@m.gmane.org; Sat, 23 Jan 2016 00:49:35 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49109) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMr4e-0000b4-5g for emacs-devel@gnu.org; Sat, 23 Jan 2016 00:49:24 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aMr4Z-00068x-6l for emacs-devel@gnu.org; Sat, 23 Jan 2016 00:49:24 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:46437) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aMr4Y-00068d-W3 for emacs-devel@gnu.org; Sat, 23 Jan 2016 00:49:19 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1aMr4V-0000Mw-SB for emacs-devel@gnu.org; Sat, 23 Jan 2016 06:49:16 +0100 Original-Received: from 108.161.125.56 ([108.161.125.56]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Jan 2016 06:49:15 +0100 Original-Received: from monnier by 108.161.125.56 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 23 Jan 2016 06:49:15 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 9 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 108.161.125.56 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:SWPSJCCFloeIOlfDh47TYZXW38U= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:198612 gmane.comp.lib.glibc.alpha:58813 Archived-At: >> This is less of a problem if Emacs never frees a pointer after dump that >> it has allocated before dump. But I think this can happen (otherwise, >> all this would be quite easy to address). > Yes, it can and does happen, although not much. Indeed. This said, it'd make sense to try and avoid doing it. Stefan