From owner-freebsd-stable Fri May 28 3:56:50 1999 Delivered-To: freebsd-stable@freebsd.org Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (Postfix) with ESMTP id D65F015AA4 for ; Fri, 28 May 1999 03:56:32 -0700 (PDT) (envelope-from wilko@yedi.iaf.nl) Received: from yedi.iaf.nl (uucp@localhost) by uni4nn.gn.iaf.nl (8.9.2/8.9.2) with UUCP id MAA10591; Fri, 28 May 1999 12:02:01 +0200 (MET DST) Received: (from wilko@localhost) by yedi.iaf.nl (8.9.3/8.9.3) id JAA10011; Fri, 28 May 1999 09:13:07 +0200 (CEST) (envelope-from wilko) From: Wilko Bulte Message-Id: <199905280713.JAA10011@yedi.iaf.nl> Subject: Re: (again) panic: vinvalbuf: dirty bufs In-Reply-To: from Chris Dillon at "May 27, 1999 8:35:58 pm" To: cdillon@wolves.k12.mo.us (Chris Dillon) Date: Fri, 28 May 1999 09:13:07 +0200 (CEST) Cc: freebsd-stable@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-pgp-info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG As Chris Dillon wrote ... > > Heh... so this turns out to be the second message I send, rather > than the first. Thats what I get for sending it to myself instead > of to the list. > > Ok, I was able this time to get a useful backtrace on the dump (I > couldn't last time due to my own stupidity, forgetting to specify > symbol-file). > > Anyway, this very reproducible panic occurs any time I: > dd if=/dev/rda0s1a of=/dev/da1s1a > and then either hit ctrl-C at any time, or just let it finish. > > Anytime, anyplace, anywhere. With or without softupdates. In > single-user mode or not. With or without all 256MB of RAM enumerated. > With or without anything but the root partition mounted. Wether its > read-only or not. Etc. Etc. > > Yes, I know that's the wrong way to copy a filesystem, but that isn't > the point here. :-) > > Interestingly enough, doing it the right way, i.e.: > dd if=/dev/rda0s1a of=/dev/rda1s1a > tells me "/dev/rda1s1a: read-only filesystem", which is pure bollocks. > Yes, /dev/rda1s1a does exist and its not trying to write a file into > /dev on a read-only /. :-) See some posts from 1 or 2 days ago about panics when you 'dd' to a write protected floppy via 'dd if=/kernel of=/dev/fd0'. Looks remarkably similar to me. The same or similar is not completely clear to me. [....] > uname -a output: > FreeBSD cheetah.wolves.k12.mo.us 3.2-STABLE FreeBSD 3.2-STABLE #0: Thu May 27 19:32:28 root@cheetah.wolves.k12.mo.us:/usr/src/sys/compile/CHEETAH i386 > > Very recent 3.2-STABLE world and kernel (as of a few hours ago). > > If anyone needs me to test any fixes they might have, please tell me > NOW before I put the box into production, and it therefore becomes > unavailable for testing. I can reproduce it here on different hardware so I guess it is not specific to your box. | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message