Hi all,

I use Samba-3.4.17 which is rpm-built from original tar ball on Scentific Linux 6.2 (i686).

I established trusted domain relationship between Samba BDC and AD (domain function level is Windows Server 2003) and Winbind often hung up showing the following error:

[2012/05/21 23:35:06,  0] lib/fault.c:46(fault_report)
  ===============================================================
[2012/05/21 23:35:06,  0] lib/fault.c:47(fault_report)
  INTERNAL ERROR: Signal 11 in pid 11830 (3.4.17)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2012/05/21 23:35:06,  0] lib/fault.c:49(fault_report)

  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2012/05/21 23:35:06,  0] lib/fault.c:50(fault_report)
  ===============================================================
[2012/05/21 23:35:06,  0] lib/util.c:1480(smb_panic)
  PANIC (pid 11830): internal error
[2012/05/21 23:35:06,  0] lib/util.c:1584(log_stack_trace)
  BACKTRACE: 19 stack frames:
   #0 winbindd(log_stack_trace+0x2e) [0x9b5efe]
   #1 winbindd(smb_panic+0x2e) [0x9b601e]
   #2 winbindd(+0x12452f) [0x9a352f]
   #3 [0x531400]
   #4 /lib/libldap-2.4.so.2(ldap_unbind_ext+0x25) [0x6d7855]
   #5 /lib/libldap-2.4.so.2(ldap_unbind+0x70) [0x6d79a0]
   #6 winbindd(+0x44147f) [0xcc047f]
   #7 winbindd(+0x44167b) [0xcc067b]
   #8 winbindd(run_events+0x96) [0x9c7726]
   #9 winbindd(+0xa3b90) [0x922b90]
   #10 winbindd(+0xa4918) [0x923918]
   #11 winbindd(do_async+0xa1) [0x9262d1]
   #12 winbindd(winbindd_gid2sid_async+0xf9) [0x92cd99]
   #13 winbindd(winbindd_gid_to_sid+0x15b) [0x90a04b]
   #14 winbindd(+0x684b2) [0x8e74b2]
   #15 winbindd(+0x693d8) [0x8e83d8]
   #16 winbindd(main+0x1016) [0x8e98f6]
   #17 /lib/libc.so.6(__libc_start_main+0xe6) [0xb7763ce6]
   #18 winbindd(+0x67811) [0x8e6811]
[2012/05/21 23:35:06,  0] lib/fault.c:326(dump_core)
  dumping core in /var/log/samba/cores/winbindd

I'll attach its core file to this bug report and please investigate this issue.

Best Regards,
Takao