[Samba] winbind error?

Tue Feb 2 20:35:35 MST 2010

Hello!

   i have some trouble with my samba setup (v3.4.5 or 3.3.10).
   the server is not responding (or very slow) for some minutes

   in log.winbindd-idmap i get:
   ----------------------------
[2010/02/03 04:14:27,  1] lib/util_tdb.c:521(tdb_wrap_log)
  tdb(/home/samba-server/samba/3.4.5/var/locks/mutex.tdb): tdb_lock failed on list 43 ltype=1 (Interrupted system call)
[2010/02/03 04:14:27,  0] lib/util_tdb.c:69(tdb_chainlock_with_timeout_internal)
  tdb_chainlock_with_timeout_internal: alarm (40) timed out for key DOMAINSERVER in tdb /home/samba-server/samba/3.4.5/var/locks/mutex.tdb
[2010/02/03 04:14:27,  1] lib/server_mutex.c:71(grab_named_mutex)
  Could not get the lock for DOMAINSERVER
[2010/02/03 04:14:27,  0] winbindd/winbindd_cm.c:782(cm_prepare_connection)
  cm_prepare_connection: mutex grab failed for DOMAINSERVER
[2010/02/03 04:14:55,  0] libsmb/namequery.c:75(saf_store)
  saf_store: refusing to store 0 length domain or servername!
[2010/02/03 04:14:55,  1] rpc_client/cli_pipe.c:949(cli_pipe_validate_current_pdu)
  cli_pipe_validate_current_pdu: RPC fault code DCERPC_FAULT_OP_RNG_ERROR received from host DOMAINSERVER!

  in log.winbindd i get:
  ----------------------
[2010/02/03 04:14:45,  1] lib/util_tdb.c:521(tdb_wrap_log)
  tdb(/home/samba-server/samba/3.4.5/var/locks/mutex.tdb): tdb_lock failed on list 43 ltype=1 (Interrupted system call)
[2010/02/03 04:14:45,  0] lib/util_tdb.c:69(tdb_chainlock_with_timeout_internal)
  tdb_chainlock_with_timeout_internal: alarm (40) timed out for key DOMAINSERVER in tdb /home/samba-server/samba/3.4.5/var/locks/mutex.tdb
[2010/02/03 04:14:45,  1] lib/server_mutex.c:71(grab_named_mutex)
  Could not get the lock for DOMAINSERVER
[2010/02/03 04:14:45,  0] winbindd/winbindd_cm.c:782(cm_prepare_connection)
  cm_prepare_connection: mutex grab failed for DOMAINSERVER
[2010/02/03 04:15:17,  0] libsmb/namequery.c:75(saf_store)
  saf_store: refusing to store 0 length domain or servername!
[2010/02/03 04:19:18,  1] rpc_client/cli_pipe.c:949(cli_pipe_validate_current_pdu)
  cli_pipe_validate_current_pdu: RPC fault code DCERPC_FAULT_OP_RNG_ERROR received from host DOMAINSERVER!
[2010/02/03 04:24:18,  0] winbindd/winbindd_dual.c:186(async_request_timeout_handler)
  async_request_timeout_handler: child pid 5454 is not responding. Closing connection to it.

 in log.wb-TESTDOM i get:
 ----------------------
[2010/02/03 04:18:40,  1] lib/util_tdb.c:521(tdb_wrap_log)
  tdb(/home/samba-server/samba/3.4.5/var/locks/mutex.tdb): tdb_lock failed on list 43 ltype=1 (Interrupted system call)
[2010/02/03 04:18:40,  0] lib/util_tdb.c:69(tdb_chainlock_with_timeout_internal)
  tdb_chainlock_with_timeout_internal: alarm (40) timed out for key DOMAINSERVER in tdb /home/samba-server/samba/3.4.5/var/locks/mutex.tdb
[2010/02/03 04:18:40,  1] lib/server_mutex.c:71(grab_named_mutex)
  Could not get the lock for DOMAINSERVER
[2010/02/03 04:18:40,  0] winbindd/winbindd_cm.c:782(cm_prepare_connection)
  cm_prepare_connection: mutex grab failed for DOMAINSERVER
[2010/02/03 04:19:18,  0] libsmb/namequery.c:75(saf_store)
  saf_store: refusing to store 0 length domain or servername!
[2010/02/03 04:24:18,  1] rpc_client/cli_pipe.c:949(cli_pipe_validate_current_pdu)
  cli_pipe_validate_current_pdu: RPC fault code DCERPC_FAULT_OP_RNG_ERROR received from host DOMAINSERVER!
[2010/02/03 04:24:18,  0] winbindd/winbindd.c:190(winbindd_sig_term_handler)
  Got sig[15] terminate (is_parent=0)

  nmb and smb are running fine, no errors.
  what are these 'tdb_lock failed' errors?
  why do i get 'saf_store: refusing to store 0 length domain or servername!'

  here is my smb.conf:
  --------------------
[global]
   netbios name = Domainserver
   server string = File Server
   workgroup = TESTDOM
   realm = TESTDOM
   bind interfaces only = yes
   interfaces = lo eth0
   smb ports = 137 138 139 445
   security = user
   encrypt passwords = true
   passdb backend = tdbsam
   guest ok = no
   invalid users = bin deamon sys man postfix mail ftp
   hosts allow = 127.0.0.1 172.16.1.0/24
   hosts deny = 0.0.0.0/0
   obey pam restrictions = yes
   unix password sync = no
   client ntlmv2 auth = yes
   local master = yes
   preferred master = yes
   os level = 65
   domain master = yes
   domain logons = yes
   logon path = \\%L\profiles\%U
   logon drive = z:
   logon script = login.bat
   profile acls = yes
   acl compatibility = auto
   acl check permissions = True
   hide files = /?esktop.ini/ntuser.ini/NTUSER.*/?humbs.db/
   wins support = yes
   name resolve order = wins bcast hosts
   dns proxy = yes
   log file = /home/samba-server/samba/current/var/log.%m
   log level = 2
   max log size = 1000
   syslog = 0
   strict locking   = yes
   socket options = TCP_NODELAY SO_RCVBUF=16384 SO_SNDBUF=16384
   winbind separator = \\
   winbind cache time = 3600
   idmap uid = 10000-20000
   idmap gid = 10000-20000
   winbind enum users = yes
   winbind enum groups = yes
   winbind use default domain = yes
   winbind rpc only = Yes
   allow trusted domains = no
   load printers = yes
   printing = cups
   printcap = cups
   printcap name = cups
   time server = yes

Any idea what may be causing this?

Best regards,
Randy