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xfs corrupted

To: xfs@xxxxxxxxxxx
Subject: xfs corrupted
From: katmai <katmai@xxxxxxxxxxxxxxx>
Date: Tue, 15 Oct 2013 01:41:47 -0700 (PDT)
Delivered-to: xfs@xxxxxxxxxxx
i guys,

i have a problem. yesterday there was a power outage at one of my
datacenters, where i have a relatively large fileserver. 2 arrays, 1 x 14 tb
and 1 x 18 tb both in raid6, with an adaptec card.

after the outage, the server came back online, the xfs partitions were
mounted, and everything looked okay. i could access the data and everything
seemed just fine.

today i woke up to lots of i/o errors, and when i rebooted the server, the
partitions would not mount:

Oct 14 04:09:17 kp4 kernel:
Oct 14 04:09:17 kp4 kernel: XFS internal error XFS_WANT_CORRUPTED_RETURN
a<ffffffff80056933>] pdflush+0x0/0x1fb
Oct 14 04:09:17 kp4 kernel: [<ffffffff80056a84>] pdflush+0x151/0x1fb
Oct 14 04:09:17 kp4 kernel: [<ffffffff800cd931>] wb_kupdate+0x0/0x16a
Oct 14 04:09:17 kp4 kernel: [<ffffffff80032c2b>] kthread+0xfe/0x132
Oct 14 04:09:17 kp4 kernel: [<ffffffff8005dfc1>] child_rip+0xa/0x11
Oct 14 04:09:17 kp4 kernel: [<ffffffff800a3ab7>]
keventd_create_kthread+0x0/0xc4
Oct 14 04:09:17 kp4 kernel: [<ffffffff80032b2d>] kthread+0x0/0x132
Oct 14 04:09:17 kp4 kernel: [<ffffffff8005dfb7>] child_rip+0x0/0x11
Oct 14 04:09:17 kp4 kernel:
Oct 14 04:09:17 kp4 kernel: XFS internal error XFS_WANT_CORRUPTED_RETURN at
line 279 of file fs/xfs/xfs_alloc.c. Caller 0xffffffff88342331
Oct 14 04:09:17 kp4 kernel:

got a bunch of these in dmesg.

i googled for solutions and i think i jumped the horse by doing xfs_repair
-L /dev/sdc. it would not clean it with xfs_repair /dev/sdc, and everybody
pretty much says the same thing.

this is what i was getting when trying to mount the array.

Filesystem Corruption of in-memory data detected. Shutting down filesystem
xfs_check

Did i jump the gun by using the -L switch :/ ?



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