On Thu 01-11-18 17:42:43, Baoquan He wrote: > On 11/01/18 at 10:22am, Michal Hocko wrote: > > > I haven't figured out why the above commit caused those memmory > > > block in MOVABL zone being not removable. Still checking. Attach the > > > tested reverting patch in this mail. > > > > Could you check which of the test inside has_unmovable_pages claimed the > > failure? Going back to marking movable_zone as guaranteed to offline is > > just too fragile. > > Sure, will add debugging code and check. Will update if anything found. Please dump the whole struct page state for the failing pfn. -- Michal Hocko SUSE Labs