From owner-freebsd-hackers@FreeBSD.ORG Sat Mar 22 04:12:34 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8246A106566B for ; Sat, 22 Mar 2008 04:12:34 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id EF8758FC1B for ; Sat, 22 Mar 2008 04:12:33 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from inchoate.gsoft.com.au (ppp121-45-145-12.lns11.adl6.internode.on.net [121.45.145.12]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id m2M4CRgq019018 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 22 Mar 2008 14:42:28 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: freebsd-hackers@freebsd.org, stef@memberwebs.com Date: Sat, 22 Mar 2008 09:37:17 +1030 User-Agent: KMail/1.9.7 References: <20080320131638.7E66B94C853@mx.npubs.com> In-Reply-To: <20080320131638.7E66B94C853@mx.npubs.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart12565624.rhC4FBC7UD"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200803220937.33552.doconnor@gsoft.com.au> X-Spam-Score: -0.906 () BAYES_00,DATE_IN_PAST_03_06,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 Cc: Subject: Re: Vital Patches for ataraid with Intel Matrix RAID (ICH7) 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: Sat, 22 Mar 2008 04:12:34 -0000 --nextPart12565624.rhC4FBC7UD Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thu, 20 Mar 2008, Stef Walter wrote: > Don't duplicate the RAID amoeba style if you boot with a drive > present that was detached from a RAID. This can happen if you manage > to get past the above panic problem. You'll end up with two devices > like ar0 and ar1. This can be a major mess if ar1 was already > contained active file systems. I have seen this bug in other ATA RAID implementations (VIA & Promise)=20 too. From what I can tell this part of your patch is general to all ATA=20 RAID arrays, right? I can be bad even with just ar0 - you can end up with ar0 & ar1 after a=20 boot where ar0 is stale, it's awesome fun to debug :( =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart12565624.rhC4FBC7UD Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQBH5D+15ZPcIHs/zowRAkysAKCDdwSxI3WSSOqY8FHpNmiqDQnXPQCeML30 O6V96hMxXzcGm9tW/TrU4WE= =XTc5 -----END PGP SIGNATURE----- --nextPart12565624.rhC4FBC7UD--