Hi On Mon, Oct 21, 2013 at 8:53 AM, Nav Kamal <navkamal90@gmail.com> wrote:

Am very new to kernel programming and one of the concept says that kernel memory isn't pagable ? Can please someone explain its reason ?

If we try to page off kernel structures we might have a deadlock trying to bring it back. Imagine you removed from memory for disk drivers code text, or swapped data needed for paging algorithm. Now to bring any data back you need the code that does not present in memory and should be paged in -> deadlock.