--- Preetham D Naik <pdn@sasken.com> wrote: > SO HOW CAN NULL PTR DEREFERENCING HAPPEN IN SUCH AN > OS...ARE THE POINTERS > NOT CHECKED FOR NULL!!! All pointers are checked for validity within the process's address space, not just NULL. It is the attempt to dereference the NULL pointer that throws off the oops/segfaults rather than the dereferencing. PS: All caps messages are not fine. "Don't TYPE IN ALL CAPS, this is read as shouting and considered rude" to quote ESR. http://www.catb.org/~esr/faqs/smart-questions.html ===== Regards, Kiran Kumar Immidi __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free web site building tool. Try it! http://webhosting.yahoo.com/ps/sb/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/