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Date: Mon, 29 Sep 1997 10:52:57 -0500 (CDT)
From: Dave Bodenstab <imdave@mcs.net>
Message-Id: <199709291552.KAA07346@imdave.pr.mcs.net>
To: dg@root.com, phk@critter.freebsd.dk
Subject: Re: kern/4630: buffer_map might become corrupted
Cc: dyson@FreeBSD.ORG, freebsd-bugs@FreeBSD.ORG, peter@netplex.com.au,
        Tor.Egge@idi.ntnu.no
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> From: Poul-Henning Kamp <phk@critter.freebsd.dk>
> In message <199709290905.CAA00880@implode.root.com>, David Greenman writes:
> >>BTW2; I wish there was an easy way of producing a stack trace automatically
> >>on a panic or fatal trap, or as a diagnostic tool.  Having a machine panic 
> >>and reboot is near for unattended machines.  Having a stack trace in the 
> >>console log would be fantastic. :-)
> >
> >   John and I were talking about this exact thing just last night. :-) I
> >think the best approach would be to create a 'cda' crash dump analyzer
> >that generates a report on reboot (stores the report in a file) that includes
> >a traceback, register info, dumps of important data structures and lists, etc.
>
> And optionally emails it to some configurable address.
>
> >The alternative is to try to output a traceback on the console at crash time,
> >but this is likely going to scroll other important information off the screen.
> Well, if scroll-lock works this is no big loss.
>
> >Anyway, this has been on my wishlist for years.
> mine too.

I guess I'm a pack rat, but I saved a copy of a ``crash'' clone back
when I was running Microport's system V/AT on my 286.  It was written by
John F. Haugh II around 1988, with a copyright allowing non-commercial
derivatives.  As I recall, I compared it with the stock "crash" command
that came with my system.  It compared favorably, but since the stock
version had a couple of more options, there was no reason for me to
pursue it.  It's system V based, but if you'd like a copy upon which to
base a FreeBSD version, let me know and I can email it.

Dave Bodenstab
imdave@mcs.net