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Date: Wed, 27 Aug 2003 13:34:15 -0500 (CDT)
From: Mike Silbersack <silby@silby.com>
To: Erik Trulsson <ertr1013@student.uu.se>
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cc: stable@freebsd.org
Subject: Re: Ok, are all the panics fixed now?
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On Wed, 27 Aug 2003, Mike Silbersack wrote:

> Ah, that's a good idea!
>
> I'll try setting hw.physmem down to 12M or so and see if that causes the
> panics to occur over here.
>
> Mike "Silby" Silbersack

Ok, I booted with hw.physmem="16M", and a buildworld paniced with
"free/cache page dirty".  (I was taking a nap at the time the buildworld
crashed, we'll talk about that soon.)

(Are you guys running with INVARIANTS?)

So, I think we'll just include a warning with 4.9:

WARNING!

Do not attempt to stress a FreeBSD 4.9 machine if you:

a) Will be swapping whatsoever
or
b) Will be taking a nap while it is running.

Doing either or both of these may result in panics.

Mike "Silby" Silbersack

P.S. - now that we have an easy way to reproduce this, perhaps we can get
it fixed.