Could you try editing the code to just say asmlinkage long sys_getjiffies( void ) { return 10; // read jiffies with the get_jiffies_64 function. } and see whats happening? I just want to see where the problem is ... Also didn't you increase #define NR_syscalls in unistd.h? You need to increment it by one. Regards, duryodhan -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ