IPVS: stopping master sync thread 3952 ...
IPVS: stopping master sync thread 3967 ...
IPVS: sync thread started: state = MASTER, mcast_ifn = syz_tun, syncid = 0, id = 0
IPVS: sync thread started: state = MASTER, mcast_ifn = syz_tun, syncid = 0, id = 0
IPVS: stopping master sync thread 3976 ...
unregister_netdevice: waiting for lo to become free. Usage count = 1