snmpd terminates on SIGHUP used to force reloading the
configuration in case of pass directives is used with non
default priorities (details see P.S.).
The reason for the termination lies in the fact that the pass
module allows to specify the priority which is only taken into
account at registration time (in pass_parse_config) but not at
de-registration time (in pass_free_config) which...
2012-04-18 11:55:26 PDT in net-snmp