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Date:      Sun, 7 Apr 2002 11:59:59 +0100
From:      Josef Karthauser <joe@tao.org.uk>
To:        Terry Lambert <tlambert2@mindspring.com>
Cc:        current@freebsd.org
Subject:   Re: Kernel debugging - what's the procedure?
Message-ID:  <20020407105959.GA14407@genius.tao.org.uk>
In-Reply-To: <3CB01F95.ACCDAA82@mindspring.com>
References:  <20020407091335.GA697@genius.tao.org.uk> <3CB01F95.ACCDAA82@mindspring.com>

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On Sun, Apr 07, 2002 at 03:29:41AM -0700, Terry Lambert wrote:
> Josef Karthauser wrote:
> > What's the current method for debugging kernels?
> >=20
> >     genius# gdb -k /usr/obj/usr/src/sys/GENIUS/kernel.debug=20
> Running kernels?
>=20
> You use another machine, and connect the serial ports together.
> See the handbook for details.

I'd love to ;) but no additional machine is available at the moment.
=20
> If this is against a dead kernel, etiher your dump image is
> bad, or it doesn't match the kernel that made the dump.

That's what I'd guess too, but the kernel that crashed is the same as
the kernel that I'm debugging it on - I'm pretty sure: compiled today.

Joe

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