From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Borggraefe Subject: Re: Help with recovering a RAID5 array Date: Fri, 10 May 2013 12:14:36 +0200 Message-ID: <2377905.mzbW0zKCvF@chablis> References: <34199580.p6EyCyMeIZ@chablis> <20130506163102.066b9264@notabene.brown> <4918514.Nmbo5VakCk@chablis> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <4918514.Nmbo5VakCk@chablis> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: NeilBrown , Ole Tange List-Id: linux-raid.ids 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? > > > > i.e. > > > > mdadm --stop /dev/md126 > > mdadm -Asfvv > > > > NeilBrown > > 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 > > https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID fsck.ext4 -y -C 0 /dev/md126 ended with [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 [raid456] [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+0x85/0xa0 [7543439.065670] [] blkdev_readpage+0x18/0x20 [7543439.065672] [] 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+0x93/0xb0 [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 I think I will give up here and just start again with a clean RAID6 to copy the data onto anew. -- Best regards, Stefan Borggraefe