> > Any help and ideas are highly appreciated. > Please also let me know if there is an alternate approach for > executing user code in kernel space with a way of invoking it. > you just found out one of the reasons why system call replacing is evil: It's architecture dependent. On powerpc you need to do more than you did (like fix the other system call table as well)..... -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/