Samba + Zimbra: problems logging into samba/unix

[maxxer]

Hi.
I'm still having troubles implementing
UNIX and Windows Accounts in Zimbra LDAP and Zimbra Admin UI 6.0 - Zimbra :: Wiki

Now I managet to get at 99%. Everything looks fine, just unix users are missing.
When I try smbclient I get the following:

[2009/09/09 20:24:58,  1] auth/auth_util.c:make_server_info_sam(562)
  User luca in passdb, but getpwnam() fails!

I correctly see the user using

getenv passwd

I can login into Zimbra using that user, but when I try to su - luca system says the id is unknown.

I've been told on IRC it could be a PAM problem. I double checked all my conf files but yet it's not working.

Any idea?
thanks
maxxer

[maxxer]

a reboot "fixed" this issue, probably an nsdc issue...

but right now I get a samba crash.
looks like i'm cursed!

[2009/09/09 21:48:34,  2] passdb/pdb_ldap.c:init_group_from_ldap(2344)
  init_group_from_ldap: Entry found for group: 10001
[2009/09/09 21:48:34,  0] smbd/sec_ctx.c:push_sec_ctx(210)
  Security context stack overflow!
[2009/09/09 21:48:34,  0] lib/util.c:smb_panic(1663)
  PANIC (pid 16270): Security context stack overflow!
[2009/09/09 21:48:34,  0] lib/util.c:log_stack_trace(1767)
  BACKTRACE: 58 stack frames: