[Samba] 3.0.4: smbd's + nscd's = 100% CPU; load > 4

[Dragan Krnic]

>>    #5  0x081298fd in get_memberuids ()
>>    #6  0x08129b09 in _samr_query_groupmem ()
>>    #7  0x081215d1 in api_samr_query_groupmem ()
>>    #8  0x081358b2 in api_rpcTNP ()
>>    #9  0x08135632 in api_pipe_request ()
>>    #10 0x0812fc10 in process_request_pdu ()
>>    #11 0x0812fdec in process_complete_pdu ()
>>    #12 0x08130069 in process_incoming_data ()
>>    #13 0x08130220 in write_to_internal_pipe ()
>>    #14 0x081301a4 in write_to_pipe ()
>>    #15 0x080883e0 in api_fd_reply ()
>>    #16 0x080885b9 in named_pipe ()
>>    #17 0x080891bc in reply_trans ()
>>    #18 0x080c80e0 in switch_message ()
>>    #19 0x080c8172 in construct_reply ()
>>    #20 0x080c8491 in process_smb ()
>>    #21 0x080c9004 in smbd_process ()
>>    #22 0x081f812e in main ()
>>    #23 0x402268ae in __libc_start_main () from /lib/libc.so.6
>
> get_memberuids is expanding out the list of users in a group. Can you 
> tell me what the group membership matrix looks like for this user ?

He belongs to 5 groups, with 53, 14, 7, 21 and 128 members. 
Most users belong to 3-4 project groups, 1-2 interest groups 
plus users(== "Domain Users").