Data Loss with samba shared USB drive

[Oliver Fromme]

David Taylor <davidt at yadt.co.uk> wrote:
 > I have a USB drive (SanDisk 1GB flash drive), which I have mounted
 > on a windows PC using samba 3.0.
 > 
 > I recently discovered the copy of my files on my USB device were
 > corrupted (thankfully I had a backup), being filled entirely with
 > 0's (that's ASCII '0', not NUL).
 > 
 > I should probably mention that this is with the drive formatted with
 > a FAT filesystem.

That seems to be the problem documented in PR kern/39043:

http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/39043

It's a long-standing bug that still exists.  It affects
FAT32 filesystems exported via Samba.  The workaround is
to re-format the drive with UFS instead of FAT.  I don't
think anyone is actively working on fixing the bug.  :-(

Best regards
   Oliver

-- 
Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
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