[Samba] username map not working to 3.6.3 (security =ADS)

[aikinhdo at yahoo.fr]

Hi all,
 
i'm working on solaris 10 with compiling samba version 3.6.3.
My box is client of LDAP on solaris server
Server Samba is domain member of AD Windows 2008R2
Kerberos is configured to link to AD Windows 2008R2.
 
I'm not use windbind in my configuration.
 
I've got this messages 
 
[2012/04/27 13:39:10.550408,  3] auth/user_krb5.c:50(get_user_from_kerberos_info)
  Kerberos ticket principal name is [Minh.HUYNH at EXAMPLE.COM]
[2012/04/27 13:39:10.550519,  3] auth/user_util.c:402(map_username)
  Mapped user ALFRGIS\user-metal to metal
[2012/04/27 13:39:10.571135,  3] auth/auth_util.c:1028(check_account)
  Failed to find authenticated user ALFRGIS\user-metal via getpwnam(), denying access.
[2012/04/27 13:39:10.571221,  1] auth/user_krb5.c:211(make_server_info_krb5)
  make_server_info_info3 failed: NT_STATUS_NO_SUCH_USER!
[2012/04/27 13:39:10.571284,  1] smbd/sesssetup.c:379(reply_spnego_kerberos)
  make_server_info_krb5 failed!
[2012/04/27 13:39:10.571359,  3] smbd/error.c:81(error_packet_set)
  error packet at smbd/sesssetup.c(383) cmd=115 (SMBsesssetupX) NT_STATUS_LOGON_FAILURE
[2012/04/27 13:39:12.804376,  3] smbd/server_exit.c:180(exit_server_common)
  Server exit (failed to receive smb request)
~

It is a bug or config error ?
 
regards