Date: Fri, 1 Jul 2005 14:43:52 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Matt Juszczak <matt@atopia.net>, Gleb Smirnoff <glebius@freebsd.org>, freebsd-stable@freebsd.org Subject: Re: FreeBSD -STABLE servers repeatedly crashing. Message-ID: <20050701184352.GA177@xor.obsecurity.org> In-Reply-To: <20050629100535.GC27557@xor.obsecurity.org> References: <42BF8815.6090909@atopia.net> <20050627081933.GA97832@cell.sick.ru> <42C16394.4040904@atopia.net> <1119971279.36316.45.camel@buffy.york.ac.uk> <42C16C0E.9090002@atopia.net> <20050629100535.GC27557@xor.obsecurity.org>
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--AqsLC8rIMeq19msA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 29, 2005 at 06:05:35AM -0400, Kris Kennaway wrote: > On Tue, Jun 28, 2005 at 11:26:06AM -0400, Matt Juszczak wrote: >=20 > > >OK, when it crashes next and is sat at the "db>" prompt, type "tr" and > > >press enter to get a trace. Copy this down (or have a serial console = to > > >capture the output). Also, try typing "call doadump()" and see if that > > >succeeds in generating a crash dump. How were you trying to generate > > >one before? > > > > > >Gavin > > >=20 > > > > >=20 > > I can't type anything. The machine locks up. > >=20 > > See: http://paste.atopia.net/126 > >=20 > > After CPUID: 1, the machine locks cold and nothing else is printed to= =20 > > the screen. >=20 > Try two things: >=20 > 1) adding 'options KDB_STOP_NMI' to your kernel config. I just learned that you also need to set the debug.kdb.stop_cpus_with_nmi=3D1 sysctl (e.g. in sysctl.conf). Kris --AqsLC8rIMeq19msA Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCxY7nWry0BWjoQKURAtghAKDSwNaiBdLNfAUGYkG8yqxErv8kOQCfREIc o1gG24iyCRnjXW6S/fi5dc4= =G3dv -----END PGP SIGNATURE----- --AqsLC8rIMeq19msA--
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