From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Jim Meyering Newsgroups: gmane.emacs.devel Subject: Re: please set both MALLOC_PERTURB_ and MALLOC_CHECK_ envvars Date: Mon, 30 May 2011 12:30:03 +0200 Message-ID: <8739jwmqfo.fsf@rho.meyering.net> References: <874o4fx17z.fsf@rho.meyering.net> <87y61rvmaz.fsf@rho.meyering.net> <8762ovznpl.fsf@ambire.localdomain> <87vcwuslmd.fsf@rho.meyering.net> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1306751414 9696 80.91.229.12 (30 May 2011 10:30:14 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 30 May 2011 10:30:14 +0000 (UTC) To: Emacs development discussions Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon May 30 12:30:11 2011 Return-path: Envelope-to: ged-emacs-devel@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 1QQzje-0002ZG-5n for ged-emacs-devel@m.gmane.org; Mon, 30 May 2011 12:30:10 +0200 Original-Received: from localhost ([::1]:60410 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QQzjd-0001bM-P7 for ged-emacs-devel@m.gmane.org; Mon, 30 May 2011 06:30:09 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:40287) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QQzja-0001Z7-LD for emacs-devel@gnu.org; Mon, 30 May 2011 06:30:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QQzjY-0005dc-Mx for emacs-devel@gnu.org; Mon, 30 May 2011 06:30:06 -0400 Original-Received: from mx.meyering.net ([82.230.74.64]:49210) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QQzjY-0005c3-Fn for emacs-devel@gnu.org; Mon, 30 May 2011 06:30:04 -0400 Original-Received: by rho.meyering.net (Acme Bit-Twister, from userid 1000) id 629606009D; Mon, 30 May 2011 12:30:03 +0200 (CEST) In-Reply-To: <87vcwuslmd.fsf@rho.meyering.net> (Jim Meyering's message of "Sat, 28 May 2011 20:52:58 +0200") Original-Lines: 35 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 82.230.74.64 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:139890 Archived-At: Jim Meyering wrote: > Thien-Thi Nguyen wrote: >> () Jim Meyering >> () Fri, 27 May 2011 23:57:40 +0200 >> >> this time a compiler problem appears >> >> Please describe specifics of this compiler (name, version, etc). > > It was the gcc from Fedora 15. > > $ rpm -q gcc > gcc-4.6.0-7.fc15.x86_64 > > Using gcc built from the very latest (yesterday), > > gcc version 4.7.0 20110528 (experimental) (GCC) > > everything works fine, and yes!, even with these envvar settings: > > MALLOC_PERTURB_=117 > MALLOC_CHECK_=3 > > So at least for a little while, I'll be using that. > > Bottom line: using the very latest gcc-4.7.x, all is well. Here's an update. Maybe that was just luck, because bootstrap failed this morning with the aggressive MALLOC_* settings, even when using the latest version of gcc. However, when I turned off MALLOC_CHECK_, it succeeded: MALLOC_CHECK_=0 MALLOC_PERTURB_=91 make bootstrap