On Mon 06-11-17 19:03:08, Maxim Levitsky wrote: > I am fully aware of this. > This is why we have /proc/vm/treat_hugepages_as_moveable which I did set. > Did you remove this option? Yes http://lkml.kernel.org/r/20171003072619.8654-1-mhocko@xxxxxxxxxx > I don't need/have memory hotplug so I am ok with huge pages beeing not > movable in the movable zone. > The idea here is that other pages in that zone should be moveable so I > should be able to move all of them outside and replace them with hugepages. > This clearly doesn't work here so thats why I am asking my question This is an abuse of the zone movable. If we really want gigapages movable then we should implement that. Maybe it would be as simple as updating hugepage_migration_supported to support PUD pages. But this requires some testing. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
