socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000001000)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$nbd(r1, &(0x7f0000000180), 0x10)
ioctl$sock_SIOCINQ(r0, 0x8905, &(0x7f0000000080))