socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={<r0=>0xffffffffffffffff})
sendmmsg$sock(r0, &(0x7f0000000b40)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000000a40)=[@timestamping={{0x14}}], 0x18}}], 0x2, 0x0)