Comment 2 for bug 330626

I can confirm this too on ubuntu 9.0.4 (64bit) with all updates (at time of writing)

'sudo /etc/init.d/samba start' gives no error.

Output from log.smdb:

[2009/02/18 21:08:48, 0] smbd/server.c:main(1260)
  smbd version 3.3.0 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2009
[2009/02/18 21:08:48, 0] lib/fault.c:fault_report(40)
  ===============================================================
[2009/02/18 21:08:48, 0] lib/fault.c:fault_report(41)
  INTERNAL ERROR: Signal 11 in pid 8676 (3.3.0)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2009/02/18 21:08:48, 0] lib/fault.c:fault_report(43)

  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2009/02/18 21:08:48, 0] lib/fault.c:fault_report(44)
  ===============================================================
[2009/02/18 21:08:48, 0] lib/util.c:smb_panic(1673)
  PANIC (pid 8676): internal error
[2009/02/18 21:08:48, 0] lib/util.c:log_stack_trace(1777)
  BACKTRACE: 13 stack frames:
   #0 /usr/sbin/smbd(log_stack_trace+0x1c) [0x7f31dfa0a5cd]
   #1 /usr/sbin/smbd(smb_panic+0x5b) [0x7f31dfa0a6db]
   #2 /usr/sbin/smbd [0x7f31df9f7dad]
   #3 /lib/libpthread.so.0 [0x7f31ddfdb080]
   #4 /lib/libc.so.6(strlen+0x30) [0x7f31dc5afc60]
   #5 /lib/libc.so.6(_IO_vfprintf+0x3dbe) [0x7f31dc57875e]
   #6 /lib/libc.so.6(__vasprintf_chk+0xd0) [0x7f31dc62dd80]
   #7 /lib/libc.so.6(__asprintf_chk+0x83) [0x7f31dc62dca3]
   #8 /usr/sbin/smbd(get_print_db_byname+0x508) [0x7f31dfa37343]
   #9 /usr/sbin/smbd(print_backend_init+0x7d) [0x7f31dfa23fec]
   #10 /usr/sbin/smbd(main+0xa25) [0x7f31df8ee2d1]
   #11 /lib/libc.so.6(__libc_start_main+0xe6) [0x7f31dc54d5a6]
   #12 /usr/sbin/smbd [0x7f31df8ecd89]
[2009/02/18 21:08:48, 0] lib/util.c:smb_panic(1678)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 8676]
[2009/02/18 21:08:48, 0] lib/util.c:smb_panic(1686)
  smb_panic(): action returned status 0
[2009/02/18 21:08:48, 0] lib/fault.c:dump_core(218)
  Can not dump core: corepath not set up