socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendto$unix(r0, &(0x7f00000000c0)="e4", 0x1, 0x0, 0x0, 0x0) r2 = dup(r1) setsockopt$sock_int(r2, 0x1, 0x22, &(0x7f0000000200)=0x81, 0x4) recvmmsg(r2, &(0x7f0000000380)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000300)=""/39, 0x27}}], 0x1, 0x0, 0x0)