(root)@nc4-enm:~$ dtrace -n 'syscall:::entry /execname == "ncserver"/ { @[ustack()] = count(); }' dtrace: description 'syscall:::entry ' matched 228 probes ^C libc.so.1`__lwp_park+0x10 ncserver`__1cSCOSCriticalSectionELock6M_i_+0x58 ncserver`__1cICOSEventDSet6M_i_+0x8 ncserver`__1cSCMsgQdDueueContainerKAddMessage6MIIli_L_+0xbc ncserver`__1cQCMsgQdDueueManagerKPutMessage6MLIIli_L_+0x30 ncserver`__1cLCArlSessionTReceiveNotification6FpnNSR_ArlSession_pvpnNtransportInfo_pnOSNMP_AUTH_INFO_pnZArlNotificationParameters_pnI_VarBind__v_+0x1ec ncserver`0x531fb8 ncserver`ProcessIncomingMessage+0x2b0 ncserver`DispatchUnixEvent+0xa4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x78 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 1 libc.so.1`__lwp_unpark+0xc ncserver`__1cSCOSCriticalSectionGUnlock6M_i_+0x48 ncserver`__1cICOSEventFClear6M_i_+0x9c ncserver`__1cHCOSWaitNIterateEvents6M_i_+0xc8 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc libc.so.1`_lwp_start 1 libc.so.1`__lwp_park+0x10 libc.so.1`cond_wait_queue+0x28 libc.so.1`cond_wait_common+0x298 libc.so.1`_cond_timedwait+0x34 libumem.so.1`umem_update_thread+0x278 libc.so.1`_lwp_start 2 libc.so.1`__time+0x4 ncserver`__1cICOSTimerLUpdateSplit6M_v_+0x24 ncserver`__1cICOSTimerOGetSecondsLeft6M_l_+0x4 ncserver`__1cHCOSWaitMUpdateTimers6M_v_+0x70 ncserver`__1cHCOSWaitEWait6M_i_+0xb0 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc ncserver`__1cMCMsgListenerDRun6M_i_+0xc ncserver`__1cDRun6F_v_+0xfc ncserver`__1cGncmain6Fippc_v_+0x17c ncserver`__1cHCWinAppMInitInstance6M_i_+0x10 libmfc50.so`__1cKAfxWinMain6FpnLHINSTANCE___1pci_i_+0x8c ncserver`main+0x258 ncserver`_start+0x108 9 libc.so.1`__pollsys+0x4 libc.so.1`pselect+0x1c8 libc.so.1`select+0xa0 ncserver`__1cHCOSWaitEWait6M_i_+0xdc ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc ncserver`__1cMCMsgListenerDRun6M_i_+0xc ncserver`__1cDRun6F_v_+0xfc ncserver`__1cGncmain6Fippc_v_+0x17c ncserver`__1cHCWinAppMInitInstance6M_i_+0x10 libmfc50.so`__1cKAfxWinMain6FpnLHINSTANCE___1pci_i_+0x8c ncserver`main+0x258 ncserver`_start+0x108 9 libc.so.1`_read+0x8 ncserver`__1cICOSEventFClear6M_i_+0x1c ncserver`__1cHCOSWaitNIterateEvents6M_i_+0xc8 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc ncserver`__1cMCMsgListenerDRun6M_i_+0xc ncserver`__1cDRun6F_v_+0xfc ncserver`__1cGncmain6Fippc_v_+0x17c ncserver`__1cHCWinAppMInitInstance6M_i_+0x10 libmfc50.so`__1cKAfxWinMain6FpnLHINSTANCE___1pci_i_+0x8c ncserver`main+0x258 ncserver`_start+0x108 9 libc.so.1`_write+0x8 ncserver`__1cICOSEventLWriteToPipe6M_i_+0x10 ncserver`__1cICOSEventFClear6M_i_+0x74 ncserver`__1cHCOSWaitNIterateEvents6M_i_+0xc8 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc libc.so.1`_lwp_start 9 libc.so.1`_write+0x8 ncserver`__1cICOSEventDSet6M_i_+0x28 ncserver`__1cSCMsgQdDueueContainerKAddMessage6MIIli_L_+0xbc ncserver`__1cQCMsgQdDueueManagerKPutMessage6MLIIli_L_+0x30 ncserver`__1cNCSNMPAgentWndOInformNCAdmins6M_v_+0x74 ncserver`__1cNCSNMPAgentWndHOnTimer6ML_L_+0xc ncserver`__1cRMessageThreadProc6Fpv_v_+0x29c libc.so.1`_lwp_start 9 libc.so.1`__time+0x4 ncserver`__1cMCProtocolWndHDoTimer6M_v_+0x4 ncserver`__1cMCProtocolWndHOnTimer6ML_L_+0xc ncserver`__1cRMessageThreadProc6Fpv_v_+0x29c libc.so.1`_lwp_start 13 libc.so.1`_write+0x8 ncserver`__1cICOSEventDSet6M_i_+0x28 ncserver`__1cSCMsgQdDueueContainerKAddMessage6MIIli_L_+0xbc ncserver`__1cQCMsgQdDueueManagerKPutMessage6MLIIli_L_+0x30 ncserver`__1cLCArlSessionTReceiveNotification6FpnNSR_ArlSession_pvpnNtransportInfo_pnOSNMP_AUTH_INFO_pnZArlNotificationParameters_pnI_VarBind__v_+0x208 ncserver`0x531fb8 ncserver`ProcessIncomingMessage+0x2b0 ncserver`DispatchUnixEvent+0xa4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x78 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 18 libc.so.1`__time+0x4 ncserver`__1cPCV3OpManagerWndHDoTimer6M_v_+0x4 ncserver`__1cPCV3OpManagerWndHOnTimer6ML_L_+0xc ncserver`__1cRMessageThreadProc6Fpv_v_+0x29c libc.so.1`_lwp_start 26 libc.so.1`__time+0x4 ncserver`__1cICOSTimerKSetTimeout6ML_i_+0x94 ncserver`__1cRMessageThreadProc6Fpv_v_+0x2a4 libc.so.1`_lwp_start 132 libc.so.1`_write+0x8 ncserver`__1cICOSEventDSet6M_i_+0x28 ncserver`__1cSCMsgQdDueueContainerKAddMessage6MIIli_L_+0xbc ncserver`__1cQCMsgQdDueueManagerKPutMessage6MLIIli_L_+0x30 ncserver`__1cLCArlSessionTReceiveNotification6FpnNSR_ArlSession_pvpnNtransportInfo_pnOSNMP_AUTH_INFO_pnZArlNotificationParameters_pnI_VarBind__v_+0x1ec ncserver`0x531fb8 ncserver`ProcessIncomingMessage+0x2b0 ncserver`DispatchUnixEvent+0xa4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x78 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 144 libc.so.1`_read+0x8 ncserver`BrassSocketRead+0x68 ncserver`ProcessIncomingMessage+0x74 ncserver`DispatchUnixEvent+0xa4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x78 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 171 libc.so.1`_read+0x8 ncserver`BrassSocketRead+0x15c ncserver`ProcessIncomingMessage+0x74 ncserver`DispatchUnixEvent+0xa4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x78 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 171 libc.so.1`_read+0x8 ncserver`__1cICOSEventFClear6M_i_+0x1c ncserver`__1cHCOSWaitNIterateEvents6M_i_+0xc8 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc libc.so.1`_lwp_start 171 libc.so.1`__time+0x4 ncserver`__1cICOSTimerLUpdateSplit6M_v_+0x24 ncserver`__1cICOSTimerOGetSecondsLeft6M_l_+0x4 ncserver`__1cHCOSWaitMUpdateTimers6M_v_+0x70 ncserver`__1cHCOSWaitEWait6M_i_+0xb0 ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc libc.so.1`_lwp_start 303 libc.so.1`__pollsys+0x4 libc.so.1`pselect+0x1c8 libc.so.1`select+0xa0 ncserver`__1cHCOSWaitEWait6M_i_+0xdc ncserver`__1cRMessageThreadProc6Fpv_v_+0xdc libc.so.1`_lwp_start 303 libc.so.1`___nanosleep+0x4 ncserver`__1cRCArlEventFacilityJgotosleep6MI_v_+0xbc ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x2a0 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 1781 libc.so.1`__pollsys+0x4 libc.so.1`pselect+0x1c8 libc.so.1`select+0xa0 ncserver`PollNextUnixEvent+0xb4 ncserver`__1cVCArlUnixEventFacilityIMainLoop6M_v_+0x58 ncserver`__1cOCSNMPInterfaceHarlInit6Fpv_1_+0x2c libc.so.1`_lwp_start 1952