socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendto$unix(r0, 0x0, 0x0, 0x0, 0x0, 0x0) setsockopt$sock_int(r1, 0x1, 0x2a, &(0x7f0000000280), 0x4) recvmmsg(r1, &(0x7f0000003480)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0, 0x0)