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Date: Sun, 16 Apr 2006 16:27:44 +0200
From: Fabian Keil <freebsd-listen@fabiankeil.de>
To: Sergey Matveychuk <sem@FreeBSD.org>
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Cc: current@freebsd.org
Subject: Re: kgdb problem
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Sergey Matveychuk <sem@FreeBSD.org> wrote:

> I've tried to get a back trace from kernel core. But can't:
>=20
> % kgdb /boot/kernel/kernel /var/crash/vmcore.0
> kgdb: kvm_read: invalid address (0x50012)
> kgdb: kvm_read: invalid address (0x8256b3c)
> kgdb: kvm_read: invalid address (0x4b)
> kgdb: kvm_read: invalid address (0x4b)
> kgdb: kvm_read: invalid address (0x4b)
> kgdb: kvm_read: invalid address (0x4b)
> ...
> (an infinity loop here)
>=20
> How to fix it?

Usually /boot/kernel/kernel has the symbols already stripped.

Try /usr/obj/usr/src/sys/KERNCONF/kernel.debug instead.

Fabian
--=20
http://www.fabiankeil.de/

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