socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000480)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = dup2(r0, r1)
recvmmsg(r2, &(0x7f00000017c0)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, &(0x7f00000013c0)=[{0xfffffffffffffffe}], 0x1}}], 0x2, 0x0, 0x0)
recvmmsg(r1, 0x0, 0x0, 0x0, 0x0)