K 10 svn:author V 7 rwatson K 8 svn:date V 27 2004-06-11T03:42:37.000000Z K 7 svn:log V 392 Lock down parallel router_info list for tracking multicast IGMP versions of various routers seen: - Introduce igmp_mtx. - Protect global variable 'router_info_head' and list fields in struct router_info with this mutex, as well as igmp_timers_are_running. - find_rti() asserts that the caller acquires igmp_mtx. - Annotate a failure to check the return value of MALLOC(..., M_NOWAIT). END