From owner-freebsd-current@FreeBSD.ORG Tue Oct 7 18:30:19 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E538F16A4B3 for ; Tue, 7 Oct 2003 18:30:19 -0700 (PDT) Received: from obsecurity.dyndns.org (adsl-64-169-107-253.dsl.lsan03.pacbell.net [64.169.107.253]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4343243F85 for ; Tue, 7 Oct 2003 18:30:15 -0700 (PDT) (envelope-from kris@obsecurity.org) Received: from rot13.obsecurity.org (rot13.obsecurity.org [10.0.0.5]) by obsecurity.dyndns.org (Postfix) with ESMTP id B7B7A66DF6; Tue, 7 Oct 2003 18:30:14 -0700 (PDT) Received: by rot13.obsecurity.org (Postfix, from userid 1000) id A584EB62; Tue, 7 Oct 2003 18:30:14 -0700 (PDT) Date: Tue, 7 Oct 2003 18:30:14 -0700 From: Kris Kennaway To: Doug White Message-ID: <20031008013014.GA73539@rot13.obsecurity.org> References: <20031007040349.GA10406@ergobrains.co.jp> <20031007180822.J35281@carver.gumbysoft.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ikeVEW9yuYc//A+q" Content-Disposition: inline In-Reply-To: <20031007180822.J35281@carver.gumbysoft.com> User-Agent: Mutt/1.4.1i cc: freebsd-current@freebsd.org cc: YONETANI Tomokazu Subject: Re: savecore: first and last dump headers disagree on /dev/ad0b X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Oct 2003 01:30:20 -0000 --ikeVEW9yuYc//A+q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 07, 2003 at 06:11:30PM -0700, Doug White wrote: > On Tue, 7 Oct 2003, YONETANI Tomokazu wrote: >=20 > > The hardware is IBM NetFinity 6000R, and it has ServerWorks ROSB4 UDMA33 > > controller, to which the IDE disk is attached. The size of the IDE hard > > disk is 4Gbytes, and the size of the kernel dump and physical memory bo= th > > fits in that size. >=20 > The ROSB4 is known to have data-corruption problems with running in UDMA > mode. The dump is probably tripping over this, which is why Tor's patch > works since it demotes the device back to PIO. I also had problems dumping onto a UDMA66 disk on a promise PDC20267 controller - it seemed to dump OK (dump was readable after I recovered the disk), but it (or maybe the crash itself) trashed the partition table. Kris --ikeVEW9yuYc//A+q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/g2imWry0BWjoQKURAnPNAKCQD5pauPHr+UFITVC/6QtOivAwxgCgjzEQ iLgS2i+cbljxksf0wvWzKXc= =dRls -----END PGP SIGNATURE----- --ikeVEW9yuYc//A+q--