linux-ext4 - RE: 2nd Attempt

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Date:	Sun, 5 May 2013 12:19:30 +0100
From:	"Stephen Elliott" <techweb@...world.com>
To:	"'Theodore Ts'o'" <tytso@....edu>
Cc:	"'Andreas Dilger'" <adilger@...ger.ca>,
	<linux-ext4@...r.kernel.org>
Subject: RE: 2nd Attempt - FSCK Errors

Understood... When I can get a debugfs dump from the device (following
advice from Netgear) I will post but this may be in 2 or 3 weeks time.

-----Original Message-----
From: Theodore Ts'o [mailto:tytso@....edu] 
Sent: 03 May 2013 22:32
To: Stephen Elliott
Cc: 'Andreas Dilger'; linux-ext4@...r.kernel.org
Subject: Re: 2nd Attempt - FSCK Errors

On Fri, May 03, 2013 at 07:42:55PM +0100, Stephen Elliott wrote:
> One thing maybe you could explain (and Andreas gave me his take too) 
> is how you can multiply assigned blocks shared with "0" files. Andreas 
> offered the suggestion that they may be in the same file. If this were 
> really the case, I would suspect there to be some file corruption issues
etc...

It could be that the blocks appear multiple times in the file; or it could
be the storage system is returning different data on subsequent reads from
the device.

What we need is a debugfs dump of the inode on the file system that is
having trouble.  A debugfs dump of the inode from a completely underlated
file system is not useful....

						- Ted

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