From owner-freebsd-stable@FreeBSD.ORG Tue Jul 19 12:18:20 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2471716A41F for ; Tue, 19 Jul 2005 12:18:20 +0000 (GMT) (envelope-from marcolz@stack.nl) Received: from mailhost.stack.nl (vaak.stack.nl [131.155.140.140]) by mx1.FreeBSD.org (Postfix) with ESMTP id 55EDE43D55 for ; Tue, 19 Jul 2005 12:18:19 +0000 (GMT) (envelope-from marcolz@stack.nl) Received: from hammer.stack.nl (hammer.stack.nl [IPv6:2001:610:1108:5010::153]) by mailhost.stack.nl (Postfix) with ESMTP id 7BFE5A3017; Tue, 19 Jul 2005 14:18:18 +0200 (CEST) Received: by hammer.stack.nl (Postfix, from userid 333) id 689D66462; Tue, 19 Jul 2005 14:18:18 +0200 (CEST) Date: Tue, 19 Jul 2005 14:18:18 +0200 From: Marc Olzheim To: Kris Kennaway Message-ID: <20050719121818.GA12675@stack.nl> References: <20050713092939.GA65261@stack.nl> <20050713120030.GB23629@xor.obsecurity.org> <20050713125522.GA62977@stack.nl> <20050713184118.GD42067@xor.obsecurity.org> <20050714130520.GB26456@stack.nl> <20050714174403.GC19081@xor.obsecurity.org> <20050715094027.GA35516@stack.nl> <20050715100539.GC35516@stack.nl> <20050715120522.GA20426@xor.obsecurity.org> <20050719115314.GD11846@stack.nl> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="KsGdsel6WgEHnImy" Content-Disposition: inline In-Reply-To: <20050719115314.GD11846@stack.nl> X-Operating-System: FreeBSD hammer.stack.nl 5.4-STABLE FreeBSD 5.4-STABLE X-URL: http://www.stack.nl/~marcolz/ User-Agent: Mutt/1.5.9i Cc: Marc Olzheim , freebsd-stable@freebsd.org Subject: Re: Today's RELENG_5_4 and 'lock cmpxchgl' X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jul 2005 12:18:20 -0000 --KsGdsel6WgEHnImy Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jul 19, 2005 at 01:53:14PM +0200, Marc Olzheim wrote: > On Fri, Jul 15, 2005 at 08:05:23AM -0400, Kris Kennaway wrote: > > > Ok, even non-SMP 7-CURRENT crashes on it, so I do not believe that I'm > > > the only one seeing this... > >=20 > > You're not..as noted, it's been widely reported. >=20 > Could you give me any pointers to where this has been discussed before ? >=20 > Would placing all of the ptsopen() and ptcclose() code under a giant > lock help ? Or is the problem somewhere else ? Ah, nevermind, it already operates under GIANT, so something else is molesting the tty's t_line array. Perhaps some kind of use after free issue ? Marc --KsGdsel6WgEHnImy Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFC3O+KezjnobFOgrERAiqIAJ0XzHedDZcmFDO0nfVbHdzagms6AQCfeUFV 5l8euKGfKud0PdyA0BfTDL4= =wim3 -----END PGP SIGNATURE----- --KsGdsel6WgEHnImy--