On Wed, Aug 20, 2008 at 3:43 PM, Mayuresh <infinite.questions@xxxxxxxxx> wrote: > > A process has both user space stack and kernel space stack. When a system > call happens, all parameters are either copied to stack or in registers and > using exception it switches to kernel. As from asmlinkage, I understand > parameters are passed onto stack. So once in kernel space, all parameters > are poped from stack, which is user stack. > > My query is when does a process starts using kernel stack ? > Or to make Zhou's answer simpler: when it starts entering kernel space. In x86, it happens right when int x80 or syscall/sysenter handler is executed. regards, Mulyadi. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
