> But would the mapping, index be changed when the page > is swpped out[?]..... Well, the physical page frame will be allocated to some other process; so the mapping and index may change. But what exactly are you referring to by "page". Only the physical page frame is swapped out. The page struct does not change. Please correct me if i am wrong. > ps Any good books on 2.4 VM?...I find it a lot > different from 2.2. > Check out the links on kernelnewbies.org. Swapnil. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/