Hi, Can linux-mm group confirm, if huge pages of size 2MB cannot be migrated or remapped when user-space uses them for IO with the bypassing kernel? We need to VA->PA intact once it is mapped. We want to reserve huge pages and map them using hugetlbfs into the userspace. Use /proc//pagemap to get VA->PA mapping and use PA for IO. -- Mounesh Badiger Support for education Visit*: www.vidyaposhak.org *