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Date:      Tue, 18 May 1999 20:07:31 -0500 (CDT)
From:      Chris Dillon <cdillon@wolves.k12.mo.us>
To:        freebsd-stable@freebsd.org
Subject:   panic: vinvalbuf: dirty buffs
Message-ID:  <Pine.BSF.4.10.9905181952320.80749-100000@mail.wolves.k12.mo.us>

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I am getting this panic reliably under 3.2-RELEASE and 3.2-STABLE
under both the GENERIC kernel and a customized kernel for the
particular system I am using.

It is a Compaq Proliant 3000, PIII-500, 256MB ECC SDRAM (though
GENERIC only sees 16MB), onboard Symbios Logic 53C876, three 9.1GB
UW-SCSI drives, six Intel EtherExpress PRO 100Bs, and one Dual Intel
EtherExpress PRO 100B.

Booting single-user, with no filesystems mounted other than the root
(da0s1a) as read-only, I do the following:

dd if=/dev/rda0s1a of=/dev/da1s1a

I can either let the command complete, or hit Ctrl-C to abort it,
either way I get the above-mentioned panic.

I have attempted to set up a debugging kernel to get a core dump on
this, but every time I try to bring the resultant dump into kgdb, it
tells me "kernel symbol `IdlePTD' not found."  Any tips?


-- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net
   FreeBSD: The fastest and most stable server OS on the planet.
   For Intel x86 and Alpha architectures (SPARC under development).
   ( http://www.freebsd.org )

   "One should admire Windows users.  It takes a great deal of
    courage to trust Windows with your data."



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