From owner-freebsd-bugs Tue Feb 25 11:55:11 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id LAA11797 for bugs-outgoing; Tue, 25 Feb 1997 11:55:11 -0800 (PST) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id LAA11595 for ; Tue, 25 Feb 1997 11:52:26 -0800 (PST) Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id UAA25576; Tue, 25 Feb 1997 20:51:14 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.8.5/8.8.5) id UAA13027; Tue, 25 Feb 1997 20:50:30 +0100 (MET) Message-ID: Date: Tue, 25 Feb 1997 20:50:30 +0100 From: j@uriah.heep.sax.de (J Wunsch) To: hsu@clinet.fi (Heikki Suonsivu) Cc: freebsd-bugs@freebsd.org Subject: Re: More on bad dir panics References: <199702251537.RAA11533@news.clinet.fi> X-Mailer: Mutt 0.55-PL10 Mime-Version: 1.0 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199702251537.RAA11533@news.clinet.fi>; from Heikki Suonsivu on Feb 25, 1997 17:37:55 +0200 Sender: owner-bugs@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Heikki Suonsivu wrote: > > I have been trying to look around the crash dumps, as they are plentiful > these days (twice a day seems to be the current rate). These always happen > at the same point and all crashes are similar, crash occurs on directory > lookup stombling over a block which contains something else than directory > data. > > I can arrange access to crash dumps and kernels (with symbols). I think these are pretty useless for "bad dir" etc panics. These panics more sound like trashed data on the disk than something you could trace inside the kernel right when the panic happens. You need the history for the drive, but that's of course hard. See also Thomas David Rivers's investigations... -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)