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Re: xfs_repair fails

To: "Rhorer, Leslie" <Leslie.Rhorer@xxxxxxxxxx>
Subject: Re: xfs_repair fails
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Fri, 15 May 2015 12:16:54 +0200
Cc: Brian Foster <bfoster@xxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <D42CEF46A796364580AFE375880EF73F01AD63D1ED@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Organization: Intellique
References: <D42CEF46A796364580AFE375880EF73F01AD63BE36@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20150514104341.GA15457@xxxxxxxxxxxxxxx> <D42CEF46A796364580AFE375880EF73F01AD63D1ED@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Le Fri, 15 May 2015 03:08:05 +0000
"Rhorer, Leslie" <Leslie.Rhorer@xxxxxxxxxx> Ãcrivait:

> RAID-Server:/var/log# xfs_repair -v /dev/md0
> Phase 1 - find and verify superblock...
>         - reporting progress in intervals of 15 minutes
>         - block cache size set to 395032 entries
> Phase 2 - using internal log
>         - zero log...
> zero_log: head block 8 tail block 8
> ... <after a few minutes>
>         - scan filesystem freespace and inode maps...
> agi unlinked bucket 38 is 163000358 in ag 31 (inode=133306986534)
> zeroing unused portion of secondary superblock (AG #5)
> Segmentation fault
> 

Try with the latest version of xfs_repair (at least 3.2.2 if possible).
Here's a 3.2.2 version just in case:

http://update.intellique.com/pub/xfs_repair-3.2.2.gz

md5 checksum :
8d2f9c66e6ea015cf7d1b95ef80468c4  xfs_repair-3.2.2.gz

What's the output from dmesg or /var/log/messages from the mount
attempt? If the filesystem is "half-mounted" it may be better to boot
with the filesystem disabled in /etc/fstab before attempting repair.

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