perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000001000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmsg(r0, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000140)=[{&(0x7f0000000180)="06c9", 0x2}], 0x1}, 0x40011)
recvmmsg(r1, &(0x7f0000003040)=[{{0x0, 0x0, 0x0}}], 0x1, 0x2, 0x0)