accept4$packet(0xffffffffffffffff, 0x0, 0x0, 0x0)
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_TCP_REPAIR_WINDOW(r0, 0x6, 0x1d, &(0x7f0000000c80), 0x14)