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

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: xfs file system in process of becoming corrupt; though xfs_repair thinks it's fine! ; -/ (was xfs_dump problem...)
From: "Linda A. Walsh" <xfs@xxxxxxxxx>
Date: Tue, 06 Jul 2010 20:18:39 -0700
Cc: xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <20100701235802.GW24712@dastard>
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Dave Chinner wrote:
I don't think we changed anything at all directory related in
XFS in 2.6.34 so I'm a little perplexed as to why this is suddenly
all happening. Did these problems only show up when you updated to
2.6.34, or can you reproduce them on an older kernel?
        I've not had a chance to check this.
        But have been running 2.6.34 for about 3+ weeks.

        Have had alot of changes on my sys, including adding
disks -- resulting in ALOT of disk-disk copyies that I've mostly
done with a "xfsdump|mbuffer|xfsrestore" pipe, though I've started
using 'star' (handles acls & ext_attrs) with fewer errors than the pipe.
        However -- the biggie that was giving me the most problems is
a disk with lots of 'foreign' names on it -- many of which have been
getting stored via 'samba' from WinXP clients that don't speak
very good UTF-8 (if at all). With WinXP, I had files that were undelete-able on Windows (explorer or shell) that I *could* delete, from linux because linux spoke UTF-8.
        Well now I have some similar files on linux -- they might
have been stored in a weird character set -- ASCII and UTF-8 don't
work to read them.  They don't read as errors but nothing can
read them.
        While it is "bothersome" that I can't read them, I would have
expected that xfsdump/restore would have used character-set 'irrelevant'
calls to dump/restore files just to circumvent these problems.
        At this point, I haven't yet stumbled onto how to address those
files in linux in order to delete or rename them to a UTF-8 normalized

        At this point, I'm just guessing that this is the problem, but
it's my best guess so far...

Any ideas would be appreciated...will keep you posted.

p.s. (on top of things had file system problems that caused last week's email
to evaporate!  so anything that was sent to me was lost, though I could read
through archives to find things that were sent to the list -- not the best use
of time, though, I'm afraid...).

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