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Date: Sun, 25 Jun 1995 02:45:48 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199506241645.CAA27648@godzilla.zeta.org.au>
To: freebsd-bugs@freefall.cdrom.com, jkh@freefall.cdrom.com,
        uhclem%nemesis@fw.ast.com
Subject: Re: Changed information for PR bin/328
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>Synopsis: Checking for -c kernel changes randomly hangs		FDIV023

>State-Changed-From-To: open-closed
>State-Changed-By: jkh
>State-Changed-When: Sat Jun 24 08:37:54 PDT 1995
>State-Changed-Why: 
>author of this PR hasn't seen the problem since.

It was probably a version mismatch.  dset does _no_ checking that the
kernel that is modifiying is consistent with the kernel that it was
compiled for.  Thus if `struct isa_device' is changed, dset at best
does nothing, at second best it hangs, and at worst it corrupts the
kernel.

Bruce