From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Question about dumping and initialization Date: Thu, 14 Mar 2013 18:35:15 -0700 Organization: UCLA Computer Science Department Message-ID: <51427AD3.9000903@cs.ucla.edu> References: <87r4ji44ko.fsf@moo.wxcvbn.org> <51423E25.6070703@cs.ucla.edu> <878v5p1uem.fsf@moo.wxcvbn.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1363311327 15753 80.91.229.3 (15 Mar 2013 01:35:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 15 Mar 2013 01:35:27 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Mar 15 02:35:52 2013 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 1UGJYl-0002K3-N3 for ged-emacs-devel@m.gmane.org; Fri, 15 Mar 2013 02:35:51 +0100 Original-Received: from localhost ([::1]:33270 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UGJYO-0001y6-Sf for ged-emacs-devel@m.gmane.org; Thu, 14 Mar 2013 21:35:28 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:39185) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UGJYJ-0001xQ-Gk for emacs-devel@gnu.org; Thu, 14 Mar 2013 21:35:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UGJYG-0003Jn-TK for emacs-devel@gnu.org; Thu, 14 Mar 2013 21:35:23 -0400 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:52532) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UGJYG-0003Ja-NL for emacs-devel@gnu.org; Thu, 14 Mar 2013 21:35:20 -0400 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id C4761A60042 for ; Thu, 14 Mar 2013 18:35:19 -0700 (PDT) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5czZ96+6hIf8 for ; Thu, 14 Mar 2013 18:35:19 -0700 (PDT) Original-Received: from [192.168.1.9] (pool-71-189-154-249.lsanca.fios.verizon.net [71.189.154.249]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 74B71A60040 for ; Thu, 14 Mar 2013 18:35:19 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130308 Thunderbird/17.0.4 In-Reply-To: <878v5p1uem.fsf@moo.wxcvbn.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 131.179.128.62 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:157880 Archived-At: My guess is that the address-space randomizer in OpenBSD has state that needs to be reinitialized after a dump, much as the Doug Lea allocator needs reinitialization (see DOUG_LEA_MALLOC-related code). You can verify this guess by trying that Debian Squeeze build again, but edit config.h by hand to #define DOUG_LEA_MALLOC 1 before building; if this works, that's a hint. You'll have to look at the OpenBSD source to figure it out, though, I expect. This stuff mutated quite a bit in OpenBSD 4.4, according to the manual.