samba - Oct 2018 - after samba update to 4.9 GIT issue with samba-tool dbcheck

Hi all,

I have tried to update one of our samba servers from the currently 
installed version 4.8.6 to the latest 4.9git release.
Compilation and installation went through without any errors but when I 
do a dbcheck before the initial start of the new version I do get the 
following error:

  /usr/local/samba/bin/samba-tool dbcheck --cross-ncs --verbose

.......
ERROR(<type 'exceptions.UnicodeEncodeError'>): uncaught exception
-
'ascii' codec can't encode character u'\xfc' in position
302: ordinal
not in range(128)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/__init__.py",
line 177, in _run
     return self.run(*args, **kwargs)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/dbcheck.py",
line 157, in run
     controls=controls, attrs=attrs)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py",
line
221, in check_database
     error_count += self.check_object(object.dn, attrs=attrs)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py",
line
2230, in check_object
     error_count += self.check_dn(obj, attrname, syntax_oid)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py",
line
1139, in check_dn
     self.check_duplicate_links(obj, attrname, syntax_oid, linkID, 
reverse_link_name)
   File 
"/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py",
line
947, in check_duplicate_links
     dsdb_dn = dsdb_Dn(self.samdb, val.decode('utf8'), forward_syntax)
   File
"/usr/local/samba/lib/python2.7/site-packages/samba/common.py",
line 101, in __init__
     self.dn = ldb.Dn(samdb, self.dnstring)


Does anyone have an idea how to fix this ? Is this a bug or a problem 
with my linux/python environment ?

Thank you for your kind help.

best regards
Andreas

On Fri, 19 Oct 2018 10:23:09 +0200
Andreas Oster via samba <samba at lists.samba.org> wrote:
> Hi all,
> 
> I have tried to update one of our samba servers from the currently 
> installed version 4.8.6 to the latest 4.9git release.
> Compilation and installation went through without any errors but when
> I do a dbcheck before the initial start of the new version I do get
> the following error:
> 
>   /usr/local/samba/bin/samba-tool dbcheck --cross-ncs --verbose
> 
> .......
> ERROR(<type 'exceptions.UnicodeEncodeError'>): uncaught
exception -
> 'ascii' codec can't encode character u'\xfc' in
position 302: ordinal
> not in range(128)
There is a bug for this:

https://bugzilla.samba.org/show_bug.cgi?id=13616

Rowland