Date: Sat, 27 May 2006 18:22:13 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Joost Bekkers <joost@jodocus.org>, freebsd-hackers@freebsd.org Subject: Re: Trouble debugging a kernel dump (kgdb: kvm_read: invalid address) Message-ID: <20060527222213.GA13879@xor.obsecurity.org> In-Reply-To: <20060527105919.GA33939@bps.jodocus.org> References: <20060527105919.GA33939@bps.jodocus.org>
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--RnlQjJ0d97Da+TV1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, May 27, 2006 at 12:59:19PM +0200, Joost Bekkers wrote: > Hi >=20 > The problem is probably in front of the keyboard, but I don't know what I= 'm > doing wrong. >=20 > A pc of a friend of mine has been crashing lately after installing 6.0R o= n it. > It has ran 4.10R rock solid ever since it was released. >=20 > Whenever I try to open the dump I get the following: >=20 > # kgdb -d /usr/crash/ -n 0 /usr/src/sys/i386/compile/SAPPHIRE/kernel.debu= g=20 > kgdb: kvm_read: invalid address (0x50012) > kgdb: kvm_read: invalid address (0x7) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > kgdb: kvm_read: invalid address (0x50) > <last line repeats until I kill kgdb) >=20 > Thank for any help you can give. Wrong kernel, usually. Kris --RnlQjJ0d97Da+TV1 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) iD8DBQFEeNEUWry0BWjoQKURAgJwAKDrnKKH20qKA/bUEJIFkeRxjlEjrwCbBp9O j1HRQxW8jGjdUaM9yw73Hro= =f9qF -----END PGP SIGNATURE----- --RnlQjJ0d97Da+TV1--
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