From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Jim Meyering <jim@meyering.net>
Newsgroups: gmane.emacs.devel
Subject: Re: please set both MALLOC_PERTURB_ and MALLOC_CHECK_ envvars
Date: Sat, 28 May 2011 20:52:58 +0200
Message-ID: <87vcwuslmd.fsf@rho.meyering.net>
References: <874o4fx17z.fsf@rho.meyering.net>
	<87y61rvmaz.fsf@rho.meyering.net> <8762ovznpl.fsf@ambire.localdomain>
NNTP-Posting-Host: lo.gmane.org
Mime-Version: 1.0
Content-Type: text/plain
X-Trace: dough.gmane.org 1306608789 31668 80.91.229.12 (28 May 2011 18:53:09 GMT)
X-Complaints-To: usenet@dough.gmane.org
NNTP-Posting-Date: Sat, 28 May 2011 18:53:09 +0000 (UTC)
Cc: Emacs development discussions <emacs-devel@gnu.org>
To: Thien-Thi Nguyen <ttn@gnuvola.org>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat May 28 20:53:05 2011
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
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 <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1QQOdE-0000aw-8k
	for ged-emacs-devel@m.gmane.org; Sat, 28 May 2011 20:53:04 +0200
Original-Received: from localhost ([::1]:40796 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>)
	id 1QQOdD-00076D-Uy
	for ged-emacs-devel@m.gmane.org; Sat, 28 May 2011 14:53:03 -0400
Original-Received: from eggs.gnu.org ([140.186.70.92]:39806)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <jim@meyering.net>) id 1QQOdB-000765-L9
	for emacs-devel@gnu.org; Sat, 28 May 2011 14:53:02 -0400
Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <jim@meyering.net>) id 1QQOdA-0005KK-Fz
	for emacs-devel@gnu.org; Sat, 28 May 2011 14:53:01 -0400
Original-Received: from mx.meyering.net ([82.230.74.64]:36547)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <jim@meyering.net>) id 1QQOdA-0005KE-4u
	for emacs-devel@gnu.org; Sat, 28 May 2011 14:53:00 -0400
Original-Received: by rho.meyering.net (Acme Bit-Twister, from userid 1000)
	id AE993602F2; Sat, 28 May 2011 20:52:58 +0200 (CEST)
In-Reply-To: <8762ovznpl.fsf@ambire.localdomain> (Thien-Thi Nguyen's message
	of "Sat, 28 May 2011 02:13:42 +0200")
Original-Lines: 25
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." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: </archive/html/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=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:139846
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/139846>

Thien-Thi Nguyen wrote:
> () Jim Meyering <jim@meyering.net>
> () 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.