[Samba] Samba 4 DC log.smd flooded with Conversion error

[Jeremy Allison]

On Sat, Feb 09, 2013 at 11:54:26PM +0800, Kinglok, Fong wrote:
> My machine is running samba 4.0.3 inside a DomU of Debian Wheezy.
> 
> Following the Samba AD Howto and running Samba 4.0.3 successfully but with one pretty serious problem.  When I try access the folder with 1000 files, the speed is *VERY* slow.
> 
> After employ log level to 3, log.smbd is flooded with:
> =============================================
> [2013/02/09 23:44:05.910717,  3] ../source3/locking/share_mode_lock.c:408(fetch_share_mode_unlocked)
>   Could not fetch share entry
> [2013/02/09 23:44:05.911631,  3] ../source3/smbd/dir.c:1136(smbd_dirptr_get_entry)
>   smbd_dirptr_get_entry mask=[*] found ./行政 fname=行政 (行政)
> [2013/02/09 23:44:05.912607,  3] ../lib/util/charset/convert_string.c:316(convert_string_handle)
>   convert_string_internal: Conversion error: Illegal multibyte sequence(行政)
> [2013/02/09 23:44:05.913517,  3] ../lib/util/charset/convert_string.c:297(convert_string_handle)
>   convert_string_internal: Conversion error: Incomplete multibyte sequence(??政)
> [2013/02/09 23:44:05.914467,  3] ../lib/util/charset/convert_string.c:297(convert_string_handle)
>   convert_string_internal: Conversion error: Incomplete multibyte sequence(?政)
> [2013/02/09 23:44:05.915412,  3] ../lib/util/charset/convert_string.c:316(convert_string_handle)
>   convert_string_internal: Conversion error: Illegal multibyte sequence(政)
> [2013/02/09 23:44:05.916356,  3] ../lib/util/charset/convert_string.c:297(convert_string_handle)
>   convert_string_internal: Conversion error: Incomplete multibyte sequence(??)
> ==================================================================

Is that filename '行政' in utf8 format on the disk ?
Or is it in a previous encoding format such as big5 or
Guobiao ?

Without a parameter setting Samba defaults to utf8
encoding, and things can go wrong if filenames on
disk aren't actually utf8.

Jeremy.