Reviving this topic from the dead as I made a discovery that others may find useful :) >> i also revived some suspicious logs : >> >> 2013/11/08 16:51:26 kid3| snmpHandleUdp: FD 20 recvfrom: (11) Resource >> temporarily unavailable > > We are still trying to figure this one out. It seems not to be harmful > particularly, except a waste of effort somewhere. I managed to suppress the SNMP-related "Resource temporarily unavailable" error in SMP mode by putting snmp_port in a worker-specific section: if ${process_number} = 1 snmp_port 3401 endif HTH, Niki