From: NeilBrown <neilb@suse.de>
To: Stefan Borggraefe <stefan@spybot.info>
Cc: linux-raid@vger.kernel.org, Ole Tange <tange@binf.ku.dk>
Subject: Re: Help with recovering a RAID5 array
Date: Fri, 10 May 2013 20:48:01 +1000 [thread overview]
Message-ID: <20130510204801.210f1d08@notabene.brown> (raw)
In-Reply-To: <2377905.mzbW0zKCvF@chablis>
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On Fri, 10 May 2013 12:14:36 +0200 Stefan Borggraefe <stefan@spybot.info>
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?
> > >
> > > 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] [<ffffffff81067f0f>] warn_slowpath_common+0x7f/0xc0
> [7543439.065631] [<ffffffff81067f6a>] warn_slowpath_null+0x1a/0x20
> [7543439.065634] [<ffffffffa00aea35>] init_stripe+0x245/0x270 [raid456]
> [7543439.065637] [<ffffffffa00b2772>] get_active_stripe+0x3a2/0x3c0 [raid456]
> [7543439.065639] [<ffffffff814e67d9>] ? mddev_bio_destructor+0x19/0x20
> [7543439.065641] [<ffffffff8108bbc0>] ? prepare_to_wait+0x60/0x90
> [7543439.065644] [<ffffffffa00b5b94>] make_request+0x194/0x430 [raid456]
> [7543439.065646] [<ffffffff813030d6>] ? throtl_find_tg+0x46/0x60
> [7543439.065647] [<ffffffff8108bd20>] ? add_wait_queue+0x60/0x60
> [7543439.065650] [<ffffffff814e5f10>] md_make_request+0xd0/0x200
> [7543439.065652] [<ffffffff8111b145>] ? mempool_alloc_slab+0x15/0x20
> [7543439.065654] [<ffffffff812f2264>] generic_make_request.part.50+0x74/0xb0
> [7543439.065656] [<ffffffff812f2678>] generic_make_request+0x68/0x70
> [7543439.065658] [<ffffffff812f2705>] submit_bio+0x85/0x110
> [7543439.065660] [<ffffffff811afa2a>] ? bio_alloc_bioset+0x5a/0xf0
> [7543439.065662] [<ffffffff811a997b>] submit_bh+0xeb/0x120
> [7543439.065664] [<ffffffff811ac615>] block_read_full_page+0x225/0x390
> [7543439.065666] [<ffffffff811b1700>] ? blkdev_get_blocks+0xd0/0xd0
> [7543439.065668] [<ffffffff811190e5>] ? add_to_page_cache_locked+0x85/0xa0
> [7543439.065670] [<ffffffff811b0dc8>] blkdev_readpage+0x18/0x20
> [7543439.065672] [<ffffffff8111967d>]
> do_generic_file_read.constprop.33+0x10d/0x440
> [7543439.065675] [<ffffffff8111a74f>] generic_file_aio_read+0xef/0x280
> [7543439.065677] [<ffffffff813bb14e>] ? tty_wakeup+0x3e/0x80
> [7543439.065679] [<ffffffff81178d8a>] do_sync_read+0xda/0x120
> [7543439.065681] [<ffffffff8129ee13>] ? security_file_permission+0x93/0xb0
> [7543439.065683] [<ffffffff81179211>] ? rw_verify_area+0x61/0xf0
> [7543439.065684] [<ffffffff811796f0>] vfs_read+0xb0/0x180
> [7543439.065686] [<ffffffff8117980a>] sys_read+0x4a/0x90
> [7543439.065688] [<ffffffff81665842>] 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.
You've missed some important context there. What are the dozen or so lines
around this in the logs?
NeilBrown
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prev parent reply other threads:[~2013-05-10 10:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-02 12:24 Help with recovering a RAID5 array Stefan Borggraefe
2013-05-02 12:30 ` Mathias Burén
2013-05-02 13:14 ` Stefan Borggraefe
2013-05-02 13:17 ` Mathias Burén
2013-05-02 13:29 ` Stefan Borggraefe
2013-05-02 13:49 ` Mathias Burén
2013-05-02 14:17 ` Stefan Borggraefe
2013-05-03 8:38 ` Ole Tange
2013-05-04 11:13 ` Stefan Borggraefe
2013-05-06 6:31 ` NeilBrown
2013-05-06 8:12 ` Stefan Borggraefe
2013-05-10 10:14 ` Stefan Borggraefe
2013-05-10 10:48 ` NeilBrown [this message]
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