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Date:      Mon, 17 May 1999 09:58:10 +0100 (BST)
From:      Doug Rabson <dfr@nlsystems.com>
To:        Greg Lehey <grog@lemis.com>
Cc:        Mike Heffner <aheffner@lakefield.net>, FreeBSD Hackers <hackers@freebsd.org>
Subject:   Re: Debugging
Message-ID:  <Pine.BSF.4.05.9905170957350.509-100000@herring.nlsystems.com>
In-Reply-To: <19990517140423.Y89091@freebie.lemis.com>

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On Mon, 17 May 1999, Greg Lehey wrote:

> [moved to -hackers]
> 
> On Sunday, 16 May 1999 at 23:03:11 -0500, Mike Heffner wrote:
> >
> > I would like to trace the source of a panic during boot time. How do I compile
> > the boot loader code in DEBUG mode? I tried defining DEBUG with make, but it
> > didn't work. What's the _right_ way to compile specific code with debug mode
> > set. If there's a url for this, please let me know.
> 
> This is probably a better candidate for -hackers, so I've moved it there.
> 
> You have a basic problem that you can't take a dump until you have a
> dump device.  If you panic before that, you're limited to ddb or
> serial gdb.  There's some stuff in the online handbook about how to
> set up serial gdb, and in LINT about how to set up ddb.  Note that the
> flags for the serial device have changed in *some* versions of
> FreeBSD, so check your LINT file for the correct flags.

I don't think LINT in current mentions the new debug flag.

--
Doug Rabson				Mail:  dfr@nlsystems.com
Nonlinear Systems Ltd.			Phone: +44 181 442 9037




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