mcast4-group-single-socket Verify that the kernel is not crashed when joining lots of IPv4 multicast groups on a single socket mcast4-group-multiple-socket Verify that the kernel is not crashed when joining lots of IPv4 multicast groups on lots of sockets mcast4-group-same-group Verify that the kernel is not crashed when joining and leaving the same IPv4 multicast group on multiple sockets lots of times mcast4-group-source-filter Verify that the kernel is not crashed when joining and leaving the same IPv4 multicast group with the different source filter on multiple sockets lots of times mcast6-group-single-socket Verify that the kernel is not crashed when joining lots of IPv6 multicast groups on a single socket mcast6-group-multiple-socket Verify that the kernel is not crashed when joining lots of IPv6 multicast groups on lots of sockets mcast6-group-same-group Verify that the kernel is not crashed when joining and leaving the same IPv6 multicast group on multiple sockets lots of times mcast6-group-source-filter Verify that the kernel is not crashed when joining and leaving the same IPv6 multicast group with the different source filter on multiple sockets lots of times