[Samba] idmap config question

[Sebastian Neustein]

Hi list

we have a samba 3.6.6 pdc on debian 6.0.6 with passdb backend = ldapsam. Our
workgroup is ARCD.

The winbind-idmap log says:
[2012/10/10 13:04:48.771095,  1] winbindd/idmap.c:288(idmap_init_named_domain)
  no backend defined for idmap config ARCD

Extracts from smb.conf:
  workgroup = ARCD
  ldap idmap suffix = ou=idmaps
  idmap config * : range = 12000 - 30000


The manpage says that tdb is the default backend and that * catches all domain
names. Why do I get the above log message? Is there still something wrong?

Thanks for your help
Sebastian