Hi Could you say Why is it not allowed?? Ami not allowed to do "insmod" as super user that will load the module into the kernel and check if the system call can be called, by logging in as an other user?? thanks!! Charumathi. P.S: I was able to implement my custom system call in the kernel, but this one i want to do as a module, for my project. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/