socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000001000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmsg(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000000080)="b1", 0x1}], 0x1}, 0x24002055)
ppoll(&(0x7f0000000000)=[{r1}], 0x1, &(0x7f0000000600), 0x0, 0x0)