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Date:      Tue, 16 Jul 2002 02:26:34 -0700
From:      David Schultz <dschultz@uclink.Berkeley.EDU>
To:        Kurt Erik Lindqvist <kurtis@kurtis.pp.se>
Cc:        "M. Warner Losh" <imp@bsdimp.com>, "julian@elischer.org" <julian@elischer.org>, "current@FreeBSD.ORG" <current@FreeBSD.ORG>
Subject:   Re: NEWCARD
Message-ID:  <20020716092634.GB682@HAL9000.wox.org>
In-Reply-To: <46870000.1026756431@laptop.kurtis.pp.se>
References:  <Pine.BSF.4.21.0207092344330.38684-100000@InterJet.elischer.org> <540220000.1026378624@laptop.kurtis.pp.se> <20020712.102155.57332421.imp@bsdimp.com> <46870000.1026756431@laptop.kurtis.pp.se>

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Thus spake Kurt Erik Lindqvist <kurtis@kurtis.pp.se>:
> Uhm, I am kinda new to this, so I have no idea how to get that to disk from 
> the debugger...:(
> 
> However, the error I get is "Fatal trap 19: non-maskable interrupt trap 
> while in kernel mode".
> 
> If someone could help point me to how to write the traceback to disk I will 
> mail it...

One way is to debug from another box over a serial cable, but
that, surprisingly, requires a serial cable and another box.  The
alternative is to dump a memory image to disk and use gdb to
dissect it.  You need a raw partition at least as large as the
physical memory on your machine to do this; a swap partition
should do.  For details, see:

	http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html

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