Issue

• Winbindd crashed and dump core file.
• The messages showed following:

winbindd[25730]: [2013/06/01 16:42:55.531946,  0] lib/util.c:1468(smb_panic)
winbindd[25730]:   PANIC (pid 25730): internal error
winbindd[25730]: [2013/06/01 16:42:55.541160,  0] lib/util.c:1572(log_stack_trace)
winbindd[25730]:   BACKTRACE: 27 stack frames:
winbindd[25730]:    #0 winbindd(log_stack_trace+0x1c) [0x2b5466a62ddc]
winbindd[25730]:    #1 winbindd(smb_panic+0x2b) [0x2b5466a62eab]
winbindd[25730]:    #2 winbindd [0x2b5466a52b4e]
winbindd[25730]:    #3 /lib64/libc.so.6 [0x2b54694252d0]
winbindd[25730]:    #4 /lib64/libc.so.6(memset+0xa5b) [0x2b54694704bb]
winbindd[25730]:    #5 /usr/lib64/libkrb5.so.3(krb5_mk_ncred+0x5e8) [0x2b5468105918]
winbindd[25730]:    #6 /usr/lib64/libkrb5.so.3(krb5_mk_1cred+0x69) [0x2b54681059d9]
winbindd[25730]:    #7 /usr/lib64/libkrb5.so.3(krb5_fwd_tgt_creds+0x37c) [0x2b54680fcd8c]
winbindd[25730]:    #8 winbindd(cli_krb5_get_ticket+0xb91) [0x2b5466a9e2c1]
winbindd[25730]:    #9 winbindd(spnego_gen_negTokenTarg+0x63) [0x2b5466a9f7f3]
winbindd[25730]:    #10 winbindd(cli_session_setup_spnego+0x70d) [0x2b5466a8f3ad]
winbindd[25730]:    #11 winbindd [0x2b54669a9f08]
winbindd[25730]:    #12 winbindd [0x2b54669aa298]
winbindd[25730]:    #13 winbindd(init_dc_connection+0x25) [0x2b54669aa2d5]
winbindd[25730]:    #14 winbindd [0x2b54669aa2e9]
winbindd[25730]:    #15 winbindd(cm_connect_netlogon+0x58) [0x2b54669aa378]
winbindd[25730]:    #16 winbindd [0x2b54669aadbe]
winbindd[25730]:    #17 winbindd [0x2b54669abbbb]
winbindd[25730]:    #18 winbindd(run_events+0xfc) [0x2b5466a7288c]
winbindd[25730]:    #19 winbindd [0x2b54669b951b]
winbindd[25730]:    #20 winbindd(tevent_common_loop_immediate+0xd7) [0x2b5466a74027]
winbindd[25730]:    #21 winbindd(run_events+0x3b) [0x2b5466a727cb]
winbindd[25730]:    #22 winbindd [0x2b5466a72bcb]
winbindd[25730]:    #23 winbindd(_tevent_loop_once+0x90) [0x2b5466a73020]
winbindd[25730]:    #24 winbindd(main+0x987) [0x2b5466990d07]
winbindd[25730]:    #25 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2b5469412994]
winbindd[25730]:    #26 winbindd [0x2b546698e729]
winbindd[25730]: [2013/06/01 16:42:55.555170,  0] lib/fault.c:326(dump_core)
winbindd[25730]:   dumping core in /var/log/samba/cores/winbindd