From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ken Brown Newsgroups: gmane.emacs.bugs Subject: bug#9273: 23.3; malloc initialization should (sometimes) happen at runtime Date: Sat, 13 Aug 2011 10:53:25 -0400 Message-ID: <4E468FE5.100@cornell.edu> References: <4E41940C.2010605@cornell.edu> <83zkjhxnty.fsf@gnu.org> <4E444D85.4090907@cornell.edu> <838vqzxgq1.fsf@gnu.org> <4E44FC1B.9010207@cornell.edu> <831uwqyidi.fsf@gnu.org> <4E451A1F.4060409@cornell.edu> <4E458BF4.9080108@cornell.edu> <83fwl5wxbz.fsf@gnu.org> <4E4680C4.6040605@cornell.edu> <83d3g9weza.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1313247282 7003 80.91.229.12 (13 Aug 2011 14:54:42 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 13 Aug 2011 14:54:42 +0000 (UTC) Cc: "9273@debbugs.gnu.org" <9273@debbugs.gnu.org> To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Aug 13 16:54:36 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QsFbg-000568-3A for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Aug 2011 16:54:36 +0200 Original-Received: from localhost ([::1]:50984 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QsFbf-0000Ef-GS for geb-bug-gnu-emacs@m.gmane.org; Sat, 13 Aug 2011 10:54:35 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:50818) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QsFbc-0000EZ-Ht for bug-gnu-emacs@gnu.org; Sat, 13 Aug 2011 10:54:33 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QsFbb-0000nY-D7 for bug-gnu-emacs@gnu.org; Sat, 13 Aug 2011 10:54:32 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:46010) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QsFbb-0000nU-AR for bug-gnu-emacs@gnu.org; Sat, 13 Aug 2011 10:54:31 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QsFd4-0000gJ-3H; Sat, 13 Aug 2011 10:56:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ken Brown Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 13 Aug 2011 14:56:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 9273 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 9273-submit@debbugs.gnu.org id=B9273.13132473212571 (code B ref 9273); Sat, 13 Aug 2011 14:56:02 +0000 Original-Received: (at 9273) by debbugs.gnu.org; 13 Aug 2011 14:55:21 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QsFcP-0000fQ-7a for submit@debbugs.gnu.org; Sat, 13 Aug 2011 10:55:21 -0400 Original-Received: from granite1.mail.cornell.edu ([128.253.83.141] helo=authusersmtp.mail.cornell.edu) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QsFcM-0000fI-Vp for 9273@debbugs.gnu.org; Sat, 13 Aug 2011 10:55:20 -0400 Original-Received: from [192.168.1.98] (c-76-118-2-147.hsd1.ma.comcast.net [76.118.2.147]) (authenticated bits=0) by authusersmtp.mail.cornell.edu (8.14.4/8.12.10) with ESMTP id p7DErfF0021377 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 13 Aug 2011 10:53:47 -0400 (EDT) User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20110624 Thunderbird/5.0 In-Reply-To: <83d3g9weza.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sat, 13 Aug 2011 10:56:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:50048 Archived-At: On 8/13/2011 10:41 AM, Eli Zaretskii wrote: >> Date: Sat, 13 Aug 2011 09:48:52 -0400 >> From: Ken Brown >> CC: "9273@debbugs.gnu.org"<9273@debbugs.gnu.org> >> >> _heapinfo is indeed consistent with the current heap. But the pointer >> that was passed to realloc points into the old heap. So applying BLOCK >> to that pointer yields an absurd result. I can easily catch such cases >> by testing for ptr< _heapbase, as in my patch to _free_internal_nolock, >> but I have to figure out the best way to handle them once I've caught >> them. > > malloc a buffer, then copy the contents of the old one to the new > one. You will have to know the size of the old block, which means you > will have to access the old copy of _heapinfo. Thanks! That's much easier than what I was trying to do. Ken