Hello... > ULK 2ND SAID > "However, system calls that have more than six parameters exist. In > such cases, a single register is used to point to a memory area in > the process address space that contains the parameter values." Like you see by yourself, sys_mmap2 is using exactly 6 parameters, so it still follows the rule. regards Mulyadi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/