From owner-freebsd-current@FreeBSD.ORG  Wed May  9 19:30:38 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: freebsd-current@freebsd.org
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 2B19016A404
	for <freebsd-current@freebsd.org>; Wed,  9 May 2007 19:30:38 +0000 (UTC)
	(envelope-from dickey@saltmine.radix.net)
Received: from saltmine.radix.net (saltmine.radix.net [207.192.128.40])
	by mx1.freebsd.org (Postfix) with ESMTP id E340613C447
	for <freebsd-current@freebsd.org>; Wed,  9 May 2007 19:30:37 +0000 (UTC)
	(envelope-from dickey@saltmine.radix.net)
Received: from saltmine.radix.net (localhost [127.0.0.1])
	by saltmine.radix.net (8.12.2/8.12.2) with ESMTP id l49J62lj002892
	for <freebsd-current@freebsd.org>; Wed, 9 May 2007 15:06:02 -0400 (EDT)
Received: (from dickey@localhost)
	by saltmine.radix.net (8.12.2/8.12.2/Submit) id l49J62RZ002891
	for freebsd-current@freebsd.org; Wed, 9 May 2007 15:06:02 -0400 (EDT)
Date: Wed, 9 May 2007 15:06:02 -0400
From: Thomas Dickey <dickey@radix.net>
To: freebsd-current@freebsd.org
Message-ID: <20070509190602.GA647@saltmine.radix.net>
References: <20070509185905.GA29365@FreeBSD.czest.pl>
	<464213F4.5030704@samsco.org>
	<20070509185324.GB30662@dan.emsphone.com>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="9amGYk9869ThD9tj"
Content-Disposition: inline
In-Reply-To: <20070509185324.GB30662@dan.emsphone.com>
User-Agent: Mutt/1.3.27i
Subject: Re: yacc(1) causes a fault -- "fault VA = 0xa5a5a5b1"
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 09 May 2007 19:30:38 -0000


--9amGYk9869ThD9tj
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Wed, May 09, 2007 at 01:53:25PM -0500, Dan Nelson wrote:
> In the last episode (May 09), Scott Long said:
> >  Wojciech A. Koszek wrote:
> > > Hi,
> > > I have a file:
> > > 	http://people.freebsd.org/~wkoszek/traces/grammar.y
=2E..
> actually a "use-before-set".  I can get it to core on 6.x too by
> setting MALLOC_OPTIONS=3DJ.  valgrind (with MALLOC_OPTIONS=3Dj) says:

fwiw,
	http://invisible-island.net/byacc/

does not appear to exhibit this defect.
=20
> =3D=3D52609=3D=3D Conditional jump or move depends on uninitialised value=
(s)
> =3D=3D52609=3D=3D    at 0x8052B40: end_rule (reader.c:1260)
> =3D=3D52609=3D=3D    by 0x805393C: read_grammar (reader.c:1621)
> =3D=3D52609=3D=3D    by 0x80546C4: reader (reader.c:1926)
> =3D=3D52609=3D=3D    by 0x804C3DB: main (main.c:434)

--=20
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net

--9amGYk9869ThD9tj
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (SunOS)
Comment: For info see http://www.gnupg.org

iD8DBQFGQhuYtIqByHxlDocRAkjBAJ9TlxCGmNXQQQaetNPm2HAjy79ZRwCeMaDD
diCEduMKu7EBIMJplUOZG5c=
=vMnh
-----END PGP SIGNATURE-----

--9amGYk9869ThD9tj--