From owner-freebsd-stable@FreeBSD.ORG Tue Oct 17 22:33:58 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 57E5716A40F for ; Tue, 17 Oct 2006 22:33:58 +0000 (UTC) (envelope-from brooks@lor.one-eyed-alien.net) Received: from sccmmhc92.asp.att.net (sccmmhc92.asp.att.net [204.127.203.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id D13F343D45 for ; Tue, 17 Oct 2006 22:33:55 +0000 (GMT) (envelope-from brooks@lor.one-eyed-alien.net) Received: from lor.one-eyed-alien.net ([12.207.12.9]) by sccmmhc92.asp.att.net (sccmmhc92) with ESMTP id <20061017223354m9200klnoje>; Tue, 17 Oct 2006 22:33:54 +0000 Received: from lor.one-eyed-alien.net (localhost [127.0.0.1]) by lor.one-eyed-alien.net (8.13.8/8.13.8) with ESMTP id k9HMXpSN073571; Tue, 17 Oct 2006 17:33:52 -0500 (CDT) (envelope-from brooks@lor.one-eyed-alien.net) Received: (from brooks@localhost) by lor.one-eyed-alien.net (8.13.8/8.13.8/Submit) id k9HMXoNh073570; Tue, 17 Oct 2006 17:33:50 -0500 (CDT) (envelope-from brooks) Date: Tue, 17 Oct 2006 17:33:50 -0500 From: Brooks Davis To: Norberto Meijome Message-ID: <20061017223350.GA73392@lor.one-eyed-alien.net> References: <20061018002558.3a2bcdf6@localhost> <20061017145946.GB68977@lor.one-eyed-alien.net> <20061018071155.4331765a@localhost> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="dDRMvlgZJXvWKvBx" Content-Disposition: inline In-Reply-To: <20061018071155.4331765a@localhost> User-Agent: Mutt/1.5.11 Cc: freebsd-stable@freebsd.org Subject: Re: kernel panic mounting /tmp - 6.2-PRERELEASE X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Oct 2006 22:33:58 -0000 --dDRMvlgZJXvWKvBx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 18, 2006 at 07:11:55AM +1000, Norberto Meijome wrote: > On Tue, 17 Oct 2006 09:59:46 -0500 > Brooks Davis wrote: >=20 > > > Is there a bigger issue here? anything I can do to help diagnose / de= bug > > > this? =20 > >=20 > > Possibly and no. By recreating the file system you've destroyed > > the information needed to isolate the cause. It's known that an > > appropriately corrupt file system can do this, but the causes (there are > > probably several) are not yet known. There is some speculation that the > > only solution is to add checksums to all key data sections. > >=20 > > -- Brooks >=20 > Gotcha - i thought as much... i hoped a dump -0 would save enough info th= ough. > I just needed to have /tmp back in place asap.... >=20 > i'll keep the files around for a week or so in case something comes up. Good thought, but anything short of "dd if=3D/dev/ of=3D/path/to/some/location" probably won't preserve the corrupt bits. Think of dump as a version of tar that also knows how to read file systems directly. It only preserves files and their contents not the actual file system bits on the disk -- Brooks --dDRMvlgZJXvWKvBx Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFNVpOXY6L6fI4GtQRAk93AKCMYFEHt7OsKqCw1AhkvZdBJ9pkWACguW+5 QhIyPtHoaeP0Ffn/HYFZcD8= =Ee7+ -----END PGP SIGNATURE----- --dDRMvlgZJXvWKvBx--