Date: Thu, 27 Oct 2005 13:35:50 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Bjoern Koenig <bkoenig@cs.tu-berlin.de> Cc: current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: deadlocks with SMP and Pentium 3 Message-ID: <20051027173550.GA81309@xor.obsecurity.org> In-Reply-To: <4360B263.1070802@cs.tu-berlin.de> References: <435F2BCE.1040704@cs.tu-berlin.de> <20051026073915.GA77249@xor.obsecurity.org> <4360B263.1070802@cs.tu-berlin.de>
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--CE+1k2dSO48ffgeK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Oct 27, 2005 at 12:56:35PM +0200, Bjoern Koenig wrote: > Kris Kennaway wrote: >=20 > >You need to break to DDB, trace processes and examine lock state with > >commands like 'show alllocks' and 'show lockedvnods' to see what is > >going on. >=20 > Unfortunately the machine freezes completely and I can't break to the=20 > debugger anymore. Try with KDB_STOP_NMI (called STOP_NMI) in 7.0. Kris > It happens absolutely unforeseen, therefore I can't=20 > examine states shortly before it freezes. I run several instances of=20 > 'unixbench shell' and 'ubench -c'; sometimes it takes a few seconds and= =20 > sometimes 10 minutes until the machine stops working. >=20 > I like to except hardware failures, because FreeBSD 4.11 and Windows=20 > Server 2003 run under high load without problems for several hours. >=20 > I'll spend some more time. >=20 > Thanks > Bj?rn >=20 --CE+1k2dSO48ffgeK Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDYQ/2Wry0BWjoQKURAuHRAJ98gXxdonubo2GvJ02FyWjv6xKyPQCg0rzn HjR+fMs86kW8hPxC03WCHoM= =Cs2V -----END PGP SIGNATURE----- --CE+1k2dSO48ffgeK--
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