Date: Tue, 27 Sep 2005 17:39:41 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Pawel Worach <pawel.worach@gmail.com> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: [releng_6] mpt(4) Memory modified after free panic Message-ID: <20050927213941.GA30040@xor.obsecurity.org> In-Reply-To: <d227e09e05092714314174d7c7@mail.gmail.com> References: <d227e09e0509261455347a9aca@mail.gmail.com> <20050927003401.GE72460@xor.obsecurity.org> <d227e09e05092714314174d7c7@mail.gmail.com>
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--J/dobhs11T7y2rNN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Sep 27, 2005 at 11:31:03PM +0200, Pawel Worach wrote: > On 9/27/05, Kris Kennaway <kris@obsecurity.org> wrote: > > On Mon, Sep 26, 2005 at 11:55:53PM +0200, Pawel Worach wrote: > > > Trying to use a mpt controller with only one disk attached so it's not > > > possible to configure a RAID-1 volume. > > > Trying to boot 6.0-BETA1 install cd results in this panic. Should it > > > possible to use a single disk behind an mpt(4) with the updated drive= r? This > > > configuration works fine on 5.4. > > > > You should retry with 6.0-BETA5 - dozens of bugs have been fixed since > > then. If it persists, you should set up DEBUG_MEMGUARD to watch the > > M_BUS malloc type..this requires some minor source file editing and a > > kernel recompile (you can build it on e.g. 5.4). >=20 > False alarm, BETA5 with WITNESS and INVARIANTS re-enabled works just fine. > BETA1 was the only thing I had handy the first time and since mpt(4) > was unchanged I thought it would still be broken, I'll try to think > less next time :) > For future reference, how do I get hold of the M_BUS malloc type in > kern_malloc.c ? grep for the MALLOC_DEFINE in some other file and remove the 'static' keyword. You may also need to MALLOC_DECLARE() it in kern_malloc.c if it is not done so in a header already included in that file. Kris --J/dobhs11T7y2rNN Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDObwdWry0BWjoQKURApOYAJ9beR+6px/VSIBPChmbyBs8Dl2mewCgkqk3 uePtBkKVRNqRPE8zeMigVAA= =tcoh -----END PGP SIGNATURE----- --J/dobhs11T7y2rNN--
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