Hi. During the boot process, Linux is loaded in main memory. When a system call is done, the OS executes again. If the system call is accompanied by some parameter, which is an address of the user process memory map, how can the kernel access that variable which is in user process memory map? I mean, when the kernel fires up an address, how is it translated? I can't find an answer to my question in books nor in the internet. Thank you very much -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ