Date: Tue, 25 Jul 1995 13:06:04 +1000 From: Bruce Evans <bde@zeta.org.au> To: freebsd-current@freefall.cdrom.com, kuku@gilberto.physik.rwth-aachen.de Subject: Re: panic after fdformat/disklabel Message-ID: <199507250306.NAA07991@godzilla.zeta.org.au>
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[Redirected from hackers to current]
I just tried the following
>fdformat /dev/rfd0a
><formatted floppy>
>disklabel -w -r fd0d floppy3
>(was not sure if the syntax was correct)
fd0d is bogus, should be fd0.
>*poof*
>Fatal trap 12: page fault while in kernel mode
>...
This is easy to duplicate by reading from /dev/rfd0 using
char buf[8192];
main() { lseek(0, 8192ll, 0); read(0, buf, sizeof buf); }
but for some reason it isn't easy to duplicate by reading using dd.
The lseek is to avoid the magic label sector but doesn't make any
difference.
Bruce
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