On Tue, Jun 23, 2020 at 2:43 AM Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx> wrote: > > For early sections, we assumes its memmap will never be partially > removed. But current behavior breaks this. Where do we assume that? The primary use case for this was mapping pmem that collides with System-RAM in the same 128MB section. That collision will certainly be depopulated on-demand depending on the state of the pmem device. So, I'm not understanding the problem or the benefit of this change.