samba - Jul 2013 - no log on servers on ubuntu clients (Samba4)

Hi All,

I need some help about these errors:

1).
 samba version 4.0.7 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2012
[2013/07/12 10:57:36,  0] ../source4/smbd/server.c:475(binary_smbd_main)
  samba: using 'standard' process model
[2013/07/12 10:57:37,  1]
../source4/auth/gensec/gensec_gssapi.c:339(gensec_gssapi_client_start)
  Could not determine hostname for target computer, cannot use kerberos
[2013/07/12 10:57:37,  1]
../source4/auth/gensec/gensec_gssapi.c:339(gensec_gssapi_client_start)
  Could not determine hostname for target computer, cannot use kerberos
[2013/07/12 12:00:55,  0] ../lib/util/fault.c:72(fault_report)
  ==============================================================[2013/07/12
12:00:55,  0] ../lib/util/fault.c:73(fault_report)
  INTERNAL ERROR: Signal 11 in pid 2264 (4.0.7)
  Please read the Trouble-Shooting section of the Samba HOWTO
[2013/07/12 12:00:55,  0] ../lib/util/fault.c:75(fault_report)
  ==============================================================[2013/07/12
12:00:55,  0] ../lib/util/fault.c:144(smb_panic_default)
  PANIC: internal error
[2013/07/12 13:27:55,  1]
../source4/dsdb/kcc/kcc_deleted.c:105(kccsrv_check_deleted)
  Doing a full scan on DC=ForestDnsZones,DC=home,DC=net and looking for
deleted object
[2013/07/12 13:27:55,  1]
../source4/dsdb/kcc/kcc_deleted.c:105(kccsrv_check_deleted)
  Doing a full scan on DC=DomainDnsZones,DC=home,DC=net and looking for
deleted object
[2013/07/12 13:27:55,  1]
../source4/dsdb/kcc/kcc_deleted.c:105(kccsrv_check_deleted)
  Doing a full scan on CN=Configuration,DC=home,DC=net and looking for
deleted object
[2013/07/12 13:27:55,  1]
../source4/dsdb/kcc/kcc_deleted.c:105(kccsrv_check_deleted)
  Doing a full scan on DC=home,DC=net and looking for deleted object
[2013/07/12 13:37:18,  1] ../source4/dns_server/dns_query.c:521(handle_tkey)
  Tkey handshake completed
[2013/07/12 13:37:18,  1]
../source4/dns_server/dns_update.c:672(handle_updates)
  update count is 2

After restart of the server it goes again...

2.)
I cannot login with lightdm (ubuntu 12.04) to my samba4 server. [no log on
servers]???
I'm waiting about 5 or 7 min, then I can log without problems
It's every day!
wbinfo -u(-g) & getent passwd (groups) lists all groups and users.


Thanks,
Alexander



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here is my smb.conf

[global]
  security = ads
  realm = HOME.NET
# password server = 192.168.9.227
  workgroup = HOME
  idmap uid = 10000-20000
  idmap gid = 10000-20000
  winbind refresh tickets = yes
  winbind enum users = yes
  winbind enum groups = yes
  winbind cache time = 15
  winbind use default domain = yes
  template homedir = /home/%U
  template shell = /bin/bash
  client use spnego = yes
  client ntlmv2 auth = yes
  encrypt passwords = true
  restrict anonymous = 2

# Logging information
log level = 2
max log size = 100
log file = /var/log/samba/samba.log%m



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