socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) dup3(r0, r1, 0x0) recvmmsg$unix(r0, &(0x7f0000001700)=[{{0x0, 0xfffffffffffffe1c, 0x0, 0x0, 0x0, 0x57}}], 0x572, 0x2342, 0x0)