On Thu, 8 Oct 2020, Serge Semin wrote: > At least I don't see a decent reason to preserve them. The memory registration > method does nearly the same sanity checks. The memory reservation function > defers a bit in adding the being reserved memory first. That seems redundant, > since the reserved memory won't be available for the system anyway. Do I miss > something? At the very least it serves informational purposes as it shows up in /proc/iomem. Maciej