Date: Mon, 26 Feb 2007 11:21:30 -0600 From: Brooks Davis <brooks@FreeBSD.org> To: Dag-Erling Sm?rgrav <des@des.no> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/amd64/conf GENERIC src/sys/i386/conf GENERIC src/sys/ia64/conf GENERIC src/sys/pc98/conf GENERIC src/sys/powerpc/conf GENERIC src/sys/sparc64/conf GENERIC src/sys/sun4v/conf GENERIC Message-ID: <20070226172130.GB21095@lor.one-eyed-alien.net> In-Reply-To: <86k5y6p9t2.fsf@dwp.des.no> References: <200702091903.l19J3Ik5099479@repoman.freebsd.org> <86k5y6p9t2.fsf@dwp.des.no>
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--A6N2fC+uXW/VQSAv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Feb 25, 2007 at 03:54:17PM +0100, Dag-Erling Sm?rgrav wrote: > Brooks Davis <brooks@FreeBSD.org> writes: > > Log: > > Include GEOM_LABEL in GENERIC. It's very useful and not well publici= zed > > enough. >=20 > Bad idea. GEOM_LABEL can lead to filesystem corruption when used in > conjunction with mirrored disks. You mount /dev/ufs/root thinking it > corresponds to /dev/ar0s1a, when in fact it corresponds to /dev/ad0s1a > (in most cases, if ad0 is a component of RAID 1 array ar0, ad0s1a will > be tasted before ar0s1a, and GEOM_LABEL does not handle multiple > identically labeled providers gracefully). While I agree there are serious problems with glabel and software RAID1 configurations, I don't think that warrants continuing to hide it from the rest of us. We should probably add more warnings to the appropriate manpages and fix the RAID implementations. -- Brooks --A6N2fC+uXW/VQSAv Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFF4xcZXY6L6fI4GtQRAgUbAJwLD8gEvglHbroJxrD0ymD/hpsgdgCgsQ1H 4cfyCPKNunqnZqKIDZn7V18= =VuDk -----END PGP SIGNATURE----- --A6N2fC+uXW/VQSAv--
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