socketpair$nbd(0x1, 0x1, 0x0, 0x0)
r0 = openat$vcsu(0xffffffffffffff9c, &(0x7f0000000400), 0x1, 0x0)
ppoll(&(0x7f0000000440)=[{r0}], 0x1, &(0x7f0000000480)={0x0, 0x3938700}, 0x0, 0x0)