Addicional info. Since last code executed before crash was "auth/auth_util.c:856" I set "log level = 0 auth:9" and got:
[2013/04/03 09:03:20.588559, 5] auth/auth.c:489(make_auth_context_subsystem) Making default auth method list for DC, security=user, encrypt passwords = yes [2013/04/03 09:03:20.588606, 5] auth/auth.c:385(load_auth_module) load_auth_module: Attempting to find an auth method to match guest [2013/04/03 09:03:20.588639, 5] auth/auth.c:410(load_auth_module) load_auth_module: auth method guest has a valid init [2013/04/03 09:03:20.588665, 5] auth/auth.c:385(load_auth_module) load_auth_module: Attempting to find an auth method to match sam [2013/04/03 09:03:20.588691, 5] auth/auth.c:410(load_auth_module) load_auth_module: auth method sam has a valid init [2013/04/03 09:03:20.588716, 5] auth/auth.c:385(load_auth_module) load_auth_module: Attempting to find an auth method to match winbind:trustdomain [2013/04/03 09:03:20.588742, 5] auth/auth.c:385(load_auth_module) load_auth_module: Attempting to find an auth method to match trustdomain [2013/04/03 09:03:20.588768, 5] auth/auth.c:410(load_auth_module) load_auth_module: auth method trustdomain has a valid init [2013/04/03 09:03:20.588793, 5] auth/auth.c:410(load_auth_module) load_auth_module: auth method winbind has a valid init [2013/04/03 09:03:20.588819, 5] auth/user_info.c:59(make_user_info) attempting to make a user_info for () [2013/04/03 09:03:20.588846, 5] auth/user_info.c:70(make_user_info) making strings for 's user_info struct [2013/04/03 09:03:20.588872, 5] auth/user_info.c:87(make_user_info) making blobs for 's user_info struct [2013/04/03 09:03:20.588897, 3] auth/auth.c:219(check_ntlm_password) check_ntlm_password: Checking password for unmapped user []\[]@[] with the new password interface [2013/04/03 09:03:20.588923, 3] auth/auth.c:222(check_ntlm_password) check_ntlm_password: mapped user is: []\[]@[] [2013/04/03 09:03:20.588963, 0] lib/fault.c:47(fault_report) =============================================================== [2013/04/03 09:03:20.588989, 0] lib/fault.c:48(fault_report) INTERNAL ERROR: Signal 11 in pid 21366 (3.6.3) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1162838 Title: Samba 3.6.3 for amd64 segfault with sig=11 on UBUNTU 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1162838/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs