Date: Tue, 19 Jul 2005 14:18:18 +0200 From: Marc Olzheim <marcolz@stack.nl> To: Kris Kennaway <kris@obsecurity.org> Cc: Marc Olzheim <marcolz@stack.nl>, freebsd-stable@freebsd.org Subject: Re: Today's RELENG_5_4 and 'lock cmpxchgl' Message-ID: <20050719121818.GA12675@stack.nl> In-Reply-To: <20050719115314.GD11846@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>
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--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--
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