Hello All ! In fact, Linux use paging memory model, but segment model has some advantages such as no need to relocation. Why Linux prefare paging model ? Is it only compitability issue ? How many platforms support segmentation ? Thanks for your explanation. Best regards Vova -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/