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Re: can xfs_repair guarantee a complete clean filesystem?

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: can xfs_repair guarantee a complete clean filesystem?
From: hank peng <pengxihan@xxxxxxxxx>
Date: Tue, 1 Dec 2009 23:32:43 +0800
Cc: linux-xfs@xxxxxxxxxxx
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2009/12/1 Eric Sandeen <sandeen@xxxxxxxxxxx>:
> hank peng wrote:
>
>> Today, I encountered a problem:
>> I use "xfs_repair -L “ on a damaged filesystem and a lot of messages
>
> why did you use -L, did it fail to mount & replay the log properly?
>
umount, mount, umount and then xfs_repair failed, so I have to use -L.

>> output which include "moving disconnected inodes to lost+found ...".
>> Then I can remount the filesystem successfully and decided to remove
>> those files in lost+found directory, but it printed the following
>> message:
>> root@1234dahua:/mnt/Pool_md1/ss1/lost+found# rm -rf *
>> rm: cannot stat '710': Structure needs cleaning
>> rm: cannot stat '728': Structure needs cleaning
>> rm: cannot stat '729': Structure needs cleaning
>> rm: cannot stat '730': Structure needs cleaning
>> rm: cannot stat '731': Structure needs cleaning
>> rm: cannot stat '732': Structure needs cleaning
>> rm: cannot stat '733': Structure needs cleaning
>> rm: cannot stat '734': Structure needs cleaning
>> rm: cannot stat '735': Structure needs cleaning
>
> Look at dmesg to see what's gone wrong....
>

>> Other directories and files seems normal to access, is it not allowed
>> to delete files in lost+found directory after repair, then what should
>> I do?
>
> This is indicative of a bug or IO error that caused xfs to shut down.
>
> You haven't mentioned which kernel version, architecture, or
> version of xfsprogs you're using yet ... that may offer some clues.
>

> I'm guessing an older kernel and userspace on arm? :)
>
kernel version is 2.6.23, xfsprogs is 2.9.7, CPU is MPC8548, powerpc arch.
I am at home now, Maybe I can provide some detailed information tomorrow.

> -Eric
>



-- 
The simplest is not all best but the best is surely the simplest!

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