From owner-freebsd-hackers@FreeBSD.ORG Tue Feb 27 04:33:27 2007 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9C34916A406; Tue, 27 Feb 2007 04:33:27 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (c220-239-3-125.belrs4.nsw.optusnet.com.au [220.239.3.125]) by mx1.freebsd.org (Postfix) with ESMTP id 0E4E013C46B; Tue, 27 Feb 2007 04:33:26 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by turion.vk2pj.dyndns.org (8.13.8/8.13.8) with ESMTP id l1R4XPT0082429; Tue, 27 Feb 2007 15:33:25 +1100 (EST) (envelope-from peter@turion.vk2pj.dyndns.org) Received: (from peter@localhost) by turion.vk2pj.dyndns.org (8.13.8/8.13.8/Submit) id l1R4XP4r082420; Tue, 27 Feb 2007 15:33:25 +1100 (EST) (envelope-from peter) Date: Tue, 27 Feb 2007 15:33:25 +1100 From: Peter Jeremy To: Joe Auty Message-ID: <20070227043324.GX844@turion.vk2pj.dyndns.org> References: <39E24107-964D-414C-95D1-5B1C376291E4@netmusician.org> <001001c759a6$438d5ed0$3c01a8c0@coolf89ea26645> <73B261EE-79C5-4773-B563-9D9FCA16B4C8@netmusician.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="hoZxPH4CaxYzWscb" Content-Disposition: inline In-Reply-To: <73B261EE-79C5-4773-B563-9D9FCA16B4C8@netmusician.org> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.13 (2006-08-11) Cc: freebsd-hackers@freebsd.org, freebsd-questions@freebsd.org Subject: Re: kernel panic at boot on any 6.x OS X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Feb 2007 04:33:27 -0000 --hoZxPH4CaxYzWscb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2007-Feb-26 17:38:10 -0500, Joe Auty wrote: >My system does boot off of disc 1 of the FreeBSD 6.2 CD. That's a good start. Together with your memtest results, it suggests that your hardware is OK. > However, =20 >even when copying the /boot directory from the CD to my machine, it =20 >still produces the same kernel panic, even when starting in safe =20 >mode. Can you confirm that you have either deleted or renamed /boot before replacing it with files from the CD. An out-of-sync module does sound the most likely problem. If that doesn't help, please start DDB and get a backtrace. > I've run a memtest, and it checked out fine. Note that memtest cannot prove that your system doesn't have a problem. There are far too many states that your system could potentially be in. DRAM is especially susceptable to pattern- dependent and temporal glitches. >There must be something in my user space or world that it barfs on. I =20 >guess I will try a clean install and rebuild at some point... If you're not sure where this is being triggered, you could try adding 'rc_debug=3D"YES"' to your rc.conf (or even a 'set -x' if you are getting really desperate). This will make the boot sequence far more verbose. --=20 Peter Jeremy --hoZxPH4CaxYzWscb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFF47SU/opHv/APuIcRArlRAJwL9cir++DoXaotiZir3Rt52uu7ewCdFfdb H0AeJK6fmsLJfxa1zwDblmE= =mqMV -----END PGP SIGNATURE----- --hoZxPH4CaxYzWscb--