The root-disk was not supported in 1.16 and there is a known bug that an invalid constraint causes all constraints to be ignored and the defaults used instead.
Try not specifuing root-disk and the mem constraint should then be obeyed.
The root-disk was not supported in 1.16 and there is a known bug that an invalid constraint causes all constraints to be ignored and the defaults used instead.
Try not specifuing root-disk and the mem constraint should then be obeyed.