From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from frost.carfax.org.uk ([85.119.82.111]:51512 "EHLO frost.carfax.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932152Ab3GBH3S (ORCPT ); Tue, 2 Jul 2013 03:29:18 -0400 Date: Tue, 2 Jul 2013 08:29:15 +0100 From: Hugo Mills To: Peter Chant Cc: linux-btrfs@vger.kernel.org Subject: Re: Hardware failure or btrfs issue? Message-ID: <20130702072915.GA8170@carfax.org.uk> References: <51D2091E.9010800@petezilla.co.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="5mCyUwZo2JvN/JJP" In-Reply-To: <51D2091E.9010800@petezilla.co.uk> Sender: linux-btrfs-owner@vger.kernel.org List-ID: --5mCyUwZo2JvN/JJP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Jul 01, 2013 at 11:56:30PM +0100, Peter Chant wrote: > Sirs, > > my recently slowing file system is now going read only after trying > a defrag or other operation. I'm wondering whether this is the > result of a hardware failure or a btrfs or some other issue. Output > of dmesg: [snip] > [ 127.862825] btrfs: corrupt leaf, bad key order: > block=2837196627968,root=1, slot=121 [snip] This is usually an indication that you have bad hardware -- I'd suggest testing RAM, PSU, CPU in that order. I'm not sure what, if anything, can be done to fix the error on the disk right now. > Not that I've done anything other than a cursory check but it looks > like the read only data is fine. Might be a good idea to use that to refresh your backups, just in case my prediction about the fixability is correct. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- "How deep will this sub go?" "Oh, she'll go all the way to --- the bottom if we don't stop her." --5mCyUwZo2JvN/JJP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUBUdKBS1heFHXiqx3kAQIyBhAAq3V24Ar+kqqzziM2oal+OFwDk83sn4vG 9lecrJNHzp9DzJ2WAE5Rax2dVg8EkIbTnGDM7bmVTdBT7T3fFDtzrTDbvm31mEGQ /n4kWq9gbjlYZ1vtkCZ6fgW3OSbMVOxMTNkJIPaS4iG8cIBVkU36nbxwMnUbklgT SgoEFVdxT5oll7B593ebHrv0Ro4KDObN4AWzMgrwWct1rE8YzqntHeTcplu86n8c v1bEUE5bfBXptvhJncLdGYIUCirRWxUcxW0KJZKjqNpygQ0aD0h8bKnFKn0I5cih 3Zur7Lmiz7W6DmIR39ofuMxph9IJIgKhRsZiEF+bF5V+ZYOx/H3IaQ+hOJ6A7Z4h BKY7W46AkDWwgYlPNgSvOV6rDY9QS9Gudc+1I+F+/PQn7k7cat6JzXzULxl2Mlmp UqCr9y9Lt5+Sk7PyB1nnZhvplwtOe24OKsKpGKP8K7Ac6BCRilozvIkkLqT+ErFk x8RtgY88iqU4CUgJJtYM+oz6em1f6iA4vxvYzqq3vHb+uo3jpTHFK/xEDrL2yBWO AwgcrcxQPzfWu4muJ0C1sB5wNuMUxnYS7g51HLJnz13BoNtbk/kYFBLgw/BtZL7z F0Q6PtCCv8QxNnZnaUu4Ti+SSyn4otRA8V1vTZHRie9Uq2oYXDrBZjdfSdDbi4MR c89Quu9XmWY= =P9Na -----END PGP SIGNATURE----- --5mCyUwZo2JvN/JJP--