Hi Could someone tell what is the difference between the following. .rept NR_syscalls-(.-sys_call_table)/4 .long SYMBOL_NAME(sys_ni_syscall) .endr and .rept NR_syscalls-191 .long SYMBOL_NAME(sys_ni_syscall) .endr What does each mean and does it make a difference in implementing system call?? Do we have to make any changes to the first one while implamenting a new system call??? thank you!! Charumathi. You Can If U think U Can _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/