winbindd process high CPU

[Hou, Kevin]

Hi all,

When I tried to join Linux server to AD domain, I found the Winbindd process has very high CPU. Its stack trace is as below by gstack. Does anyone know what's the reason or encountered such issue? I'm using Samba v3.5.

#0  0x40000410 in __kernel_vsyscall ()
#1  0x40274efb in poll () from /lib/i686/nosegneg/libc.so.6
#2  0x400e91f1 in ?? () from /usr/lib/libkrb5.so.3
#3  0x400e9a0f in krb5int_sendto () from /usr/lib/libkrb5.so.3
#4  0x400ea04e in krb5_sendto_kdc () from /usr/lib/libkrb5.so.3
#5  0x400d7035 in krb5_send_tgs () from /usr/lib/libkrb5.so.3
#6  0x400c7012 in krb5_get_cred_via_tkt () from /usr/lib/libkrb5.so.3
#7  0x400c6675 in ?? () from /usr/lib/libkrb5.so.3
#8  0x400c7bf0 in krb5_get_credentials () from /usr/lib/libkrb5.so.3
#9  0x801a42f0 in smb_krb5_get_credentials ()
#10 0x801a65a7 in cli_krb5_get_ticket ()
#11 0x801a7e1b in spnego_gen_negTokenTarg ()
#12 0x8019830f in cli_session_setup_spnego ()
#13 0x800a95a3 in cm_open_connection ()
#14 0x800aa485 in init_dc_connection_network ()
#15 0x800aa4e1 in init_dc_connection ()
#16 0x800aa518 in init_dc_connection_rpc ()
#17 0x800aa58d in cm_connect_netlogon ()
#18 0x800aaa6c in get_dcs ()
#19 0x800abcc2 in check_domain_online_handler ()
#20 0x801772b1 in run_events ()
#21 0x800ba3a6 in fork_domain_child ()
#22 0x800bab81 in wb_child_request_trigger ()
#23 0x8017a12e in tevent_queue_immediate_trigger ()
#24 0x80178c04 in tevent_common_loop_immediate ()
#25 0x8017718a in run_events ()
#26 0x80177564 in s3_event_loop_once ()
#27 0x80177bc0 in _tevent_loop_once ()
#28 0x80091298 in main ()

Thanks,
Kevin


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