mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x5e033, 0xffffffffffffffff, 0x0)
r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_mtu(r0, 0x0, 0xa, &(0x7f0000000000), 0x4)