On Sat 04-11-17 11:55:14, Maxim Levitsky wrote: > Hi! > > My system has 64G of ram and I want to create 32 1G huge pages to use > in KVM virtualization, > on demand, only when VM is running. > > So I booted the kernel with > 'hugepagesz=1G hugepages=0 default_hugepagesz=1G movablecore=40G'
Why do you think movablecore will help you? Giga pages are not migrateable and as such they do not end up on movable zones. I have recently changed the code to reflect that reality because allowing giga pages to consume movable zone simply breaks memory hotplug. -- Michal Hocko SUSE Labs
