Date: Fri, 28 May 1999 09:13:07 +0200 (CEST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: cdillon@wolves.k12.mo.us (Chris Dillon) Cc: freebsd-stable@FreeBSD.ORG Subject: Re: (again) panic: vinvalbuf: dirty bufs Message-ID: <199905280713.JAA10011@yedi.iaf.nl> In-Reply-To: <Pine.BSF.4.10.9905272033440.74611-100000@mail.wolves.k12.mo.us> from Chris Dillon at "May 27, 1999 8:35:58 pm"
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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
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