mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x2000005, 0x32, 0xffffffffffffffff, 0x0)
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000080), 0x4)