From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hugo Mills Subject: Re: "open_ctree failed", unable to mount the fs Date: Fri, 7 Jan 2011 19:09:30 +0000 Message-ID: <20110107190930.GA24059@carfax.org.uk> References: <4D27631B.9020700@wpkg.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="zhXaljGHf11kAtnf" Cc: linux-btrfs To: Tomasz Chmielewski Return-path: In-Reply-To: <4D27631B.9020700@wpkg.org> List-ID: --zhXaljGHf11kAtnf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Jan 07, 2011 at 08:01:47PM +0100, Tomasz Chmielewski wrote: > I got a "power cycle", after which I'm no longer able to mount btrfs > filesystem: > > > device fsid xxxxx-yyyyy devid 1 transid 169686 /dev/vda3 > device fsid xxxxx-yyyyy devid 1 transid 169686 /dev/vda3 > parent transid verify failed on 3260289024 wanted 169686 found 169685 > parent transid verify failed on 3260289024 wanted 169686 found 169685 > parent transid verify failed on 3260289024 wanted 169686 found 169685 > btrfs: open_ctree failed > > > Tried to get that mounted with 2.6.35 and 2.6.37, without success. > > Is there a way to fix it? The forthcoming[1] btrfsck tool should handle that particular error, I believe. To prevent it from happening again, ensure that you have working barriers on your disks, or that you turn off write caching on the drives at every boot. Hugo. [1] out "real soon now" -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Well, sir, the floor is yours. But remember, the --- roof is ours! --zhXaljGHf11kAtnf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iD8DBQFNJ2TqIKyzvlFcI40RAm3TAJ9jOxFGCboxO4iyEbAti8dnjDAvfACdG9vg uM63j8QBYKFmBysPFdc1ilY= =Zabc -----END PGP SIGNATURE----- --zhXaljGHf11kAtnf--