From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: Help with recovering a RAID5 array Date: Fri, 10 May 2013 20:48:01 +1000 Message-ID: <20130510204801.210f1d08@notabene.brown> References: <34199580.p6EyCyMeIZ@chablis> <20130506163102.066b9264@notabene.brown> <4918514.Nmbo5VakCk@chablis> <2377905.mzbW0zKCvF@chablis> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/CsBmizb9K/DuCsCVII60U_5"; protocol="application/pgp-signature" Return-path: In-Reply-To: <2377905.mzbW0zKCvF@chablis> Sender: linux-raid-owner@vger.kernel.org To: Stefan Borggraefe Cc: linux-raid@vger.kernel.org, Ole Tange List-Id: linux-raid.ids --Sig_/CsBmizb9K/DuCsCVII60U_5 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Fri, 10 May 2013 12:14:36 +0200 Stefan Borggraefe wrote: > Am Montag, 6. Mai 2013, 10:12:42 schrieb Stefan Borggraefe: > > Am Montag, 6. Mai 2013, 16:31:02 schrieb NeilBrown: > > > Did you stop the array first? > > >=20 > > > i.e. > > > =20 > > > mdadm --stop /dev/md126 > > > mdadm -Asfvv > > >=20 > > > NeilBrown > >=20 > > Thank you Neil, yes this was my mistake. I realised it in the meantime = and > > am currently checking the file system using overlay files as suggested = in > >=20 > > https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID >=20 > fsck.ext4 -y -C 0 /dev/md126 >=20 > ended with >=20 > [7543439.065625] Pid: 13706, comm: fsck.ext4 Tainted: G W O 3.2.0= -37- > generic #58-Ubuntu > [7543439.065627] Call Trace: > [7543439.065629] [] warn_slowpath_common+0x7f/0xc0 > [7543439.065631] [] warn_slowpath_null+0x1a/0x20 > [7543439.065634] [] init_stripe+0x245/0x270 [raid456] > [7543439.065637] [] get_active_stripe+0x3a2/0x3c0 [rai= d456] > [7543439.065639] [] ? mddev_bio_destructor+0x19/0x20 > [7543439.065641] [] ? prepare_to_wait+0x60/0x90 > [7543439.065644] [] make_request+0x194/0x430 [raid456] > [7543439.065646] [] ? throtl_find_tg+0x46/0x60 > [7543439.065647] [] ? add_wait_queue+0x60/0x60 > [7543439.065650] [] md_make_request+0xd0/0x200 > [7543439.065652] [] ? mempool_alloc_slab+0x15/0x20 > [7543439.065654] [] generic_make_request.part.50+0x74/= 0xb0 > [7543439.065656] [] generic_make_request+0x68/0x70 > [7543439.065658] [] submit_bio+0x85/0x110 > [7543439.065660] [] ? bio_alloc_bioset+0x5a/0xf0 > [7543439.065662] [] submit_bh+0xeb/0x120 > [7543439.065664] [] block_read_full_page+0x225/0x390 > [7543439.065666] [] ? blkdev_get_blocks+0xd0/0xd0 > [7543439.065668] [] ? add_to_page_cache_locked+0x85/0x= a0 > [7543439.065670] [] blkdev_readpage+0x18/0x20 > [7543439.065672] []=20 > do_generic_file_read.constprop.33+0x10d/0x440 > [7543439.065675] [] generic_file_aio_read+0xef/0x280 > [7543439.065677] [] ? tty_wakeup+0x3e/0x80 > [7543439.065679] [] do_sync_read+0xda/0x120 > [7543439.065681] [] ? security_file_permission+0x93/0x= b0 > [7543439.065683] [] ? rw_verify_area+0x61/0xf0 > [7543439.065684] [] vfs_read+0xb0/0x180 > [7543439.065686] [] sys_read+0x4a/0x90 > [7543439.065688] [] system_call_fastpath+0x16/0x1b > [7543439.065689] ---[ end trace cce84f1e6de88596 ]--- > [7543441.630145] quiet_error: 230464 callbacks suppressed >=20 > I think I will give up here and just start again with a clean RAID6 to co= py=20 > the data onto anew. You've missed some important context there. What are the dozen or so lines around this in the logs? NeilBrown --Sig_/CsBmizb9K/DuCsCVII60U_5 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIVAwUBUYzQYTnsnt1WYoG5AQJ1XA//SD99vj0MbdBFnVhCKHe9QKhC1vWCrJCY zsPHckHNK9cNCO2rnT5owrbdxbY0bRB25v/k+4aFNqbEuLqSIyl9W2veLFNSqzYc knV5I35X7EERb5sOdFLV6wpNaHwkVAP676iiBpP+Pd3ePj0TUVemkD4z5ex5K8vo jJlWoTt6mSucrrityFC5CAtNt5fn9S6o6ZraRERw/cBhg2J2pd6JwiEDkfaTxXho 2Z4esDzBYVUIH6BZtT9Q7Hwr2633OEpwN/VNNHH5kL7RL66pJkS6Kpfyc/Uan7bp MToMgsTFwmUmoPLd6SV7fVVjWuTcEbCjIoj1Wm14c3jwVazBjjeZbnCu3xirNWjU 1EzT/SjKjoTZJfO6MArk7E/+6t52C2Sb8RCnFkE7UqffMknCbdFEVfAYwMrR3iEK JedARkXKcfZeENmxyAUezjWwYA/GnFRw2vDuhJwPhK4FwmeasvvM8cSwxp49cklV 4dCi4zX1lhNEEia7YWf6+b+svt0ojiEgbr3FF8dIjoDxJQaXZeD1ZgPuQkKZwEhn A6k8J+jCt6353viFbjpQx+HZlo+HmHYGz6ugTy8djVc7m6MBPyBT8016UB0V88cB V19OfVOnAxaXHHV7SyKfSVveKOcUQzER2EpcO+RpAq0VF43Mb/h0edvYVHpeDUau acc3vy7OD9Y= =Y7xV -----END PGP SIGNATURE----- --Sig_/CsBmizb9K/DuCsCVII60U_5--