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Re: xfs file system in process of becoming corrupt; though xfs_repair th

To: Dave Chinner <david@xxxxxxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ;-/ (was xfs_dump problem...)
From: Linda Walsh <xfs@xxxxxxxxx>
Date: Tue, 29 Jun 2010 15:33:02 -0700
In-reply-to: <20100628022744.GX6590@dastard>
References: <4C26A51F.8020909@xxxxxxxxx> <20100628022744.GX6590@dastard>
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Dave Chinner wrote:
Can you get a list of all the attributes and their sizes on the
inodes xfsdump is complaining about?

Cheers,

Dave.
Wish I could...had a software problem that had me have to reuse the
drive I just copied those examples from.

But have another XFS problem that is much more reliably persistent.
I don't know if they are at all related, but since I have this problem
that's a bit "stuck", it's easier to "reproduce".

Filesystem is one of my larger ones:

Ishtar:/Torrents> 'df' -T --sync  .
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/dm-7      xfs   6442319744 2305631080 4136688664  36% /Torrents
Ishtar:/Torrents> 'df' -iT --sync  .
Filesystem    Type    Inodes   IUsed   IFree IUse% Mounted on
/dev/dm-7      xfs   1288490112   34313 1288455799    1% /Torrents

I have 3 files that developed 'bugs' in them in 3 separate directories. Oddly, they were they were 3 copies of the same 3 files. Very Odd.

Symptom is from ls:
---------------------------------------------------------------------------------------------------
Ishtar:/Torrents> 'ls' -ni bad* ls: cannot access bad/30-Omoide to Yakusoku (TV saizu|Reinaʼs Ver.).mp3: No such file or directory
ls: cannot access bad/31-Omoide to Yakusoku (TV saizu|Tomoeʼs Ver.).mp3: No 
such file or directory
ls: cannot access bad/32-Omoide to Yakusoku (TV saizu|Nanualʼs Ver.).mp3: No 
such file or directory
bad:
total 0
2359101 ?????????? ? ? ? ?                ? 30-Omoide to Yakusoku (TV 
saizu|Reinaʼs Ver.).mp3
2354946 ?????????? ? ? ? ?                ? 31-Omoide to Yakusoku (TV 
saizu|Tomoeʼs Ver.).mp3
2354949 ?????????? ? ? ? ?                ? 32-Omoide to Yakusoku (TV 
saizu|Nanualʼs Ver.).mp3
ls: cannot access bad2/30-Omoide to Yakusoku (TV saizu|Reinaʼs Ver.).mp3: No 
such file or directory
ls: cannot access bad2/31-Omoide to Yakusoku (TV saizu|Tomoeʼs Ver.).mp3: No 
such file or directory
ls: cannot access bad2/32-Omoide to Yakusoku (TV saizu|Nanualʼs Ver.).mp3: No 
such file or directory

bad2:
total 0
2220560 ?????????? ? ? ? ?                ? 30-Omoide to Yakusoku (TV 
saizu|Reinaʼs Ver.).mp3
2220561 ?????????? ? ? ? ?                ? 31-Omoide to Yakusoku (TV 
saizu|Tomoeʼs Ver.).mp3
2218302 ?????????? ? ? ? ?                ? 32-Omoide to Yakusoku (TV 
saizu|Nanualʼs Ver.).mp3
ls: cannot access bad3/30-Omoide to Yakusoku (TV saizu|Reinaʼs Ver.).mp3: No 
such file or directory
ls: cannot access bad3/31-Omoide to Yakusoku (TV saizu|Tomoeʼs Ver.).mp3: No 
such file or directory
ls: cannot access bad3/32-Omoide to Yakusoku (TV saizu|Nanualʼs Ver.).mp3: No 
such file or directory

bad3:
total 0
2218295 ?????????? ? ? ? ?                ? 30-Omoide to Yakusoku (TV 
saizu|Reinaʼs Ver.).mp3
2218296 ?????????? ? ? ? ?                ? 31-Omoide to Yakusoku (TV 
saizu|Tomoeʼs Ver.).mp3
2218297 ?????????? ? ? ? ?                ? 32-Omoide to Yakusoku (TV 
saizu|Nanualʼs Ver.).mp3
---------------------------------------------------------------------------------------------------

The file system, labeled 'Torrents' is layered on a lvm base (I'm not convinced 
that
lvm is as reliable as physical partitions at this point, which is why I mention 
it).

It's a 'live' file system.  What info do you want me to dump from it?

I'm dumping the files from it now, so I can try to remake the file system.

The problem is 'spreading' to "new" files.  Basically, any file that is being 
written to
now, seems to be in danger of becoming inaccessible. Also, FWIW -- I did unmount the file system and run xfs_repair. It finds no problems -- so why are these files not accessible?

Ideas?

Next steps?

Thanks!
Linda




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