On Tue 03-11-15 10:10:30, Minchan Kim wrote: > One thing I suspect is GUP with FOLL_TOUCH which calls mark_page_accesssed > on anonymous page and will mark PG_referenced. OK, this is what I've missed. -- 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>