I have very much confusion about the difference between user space and kernel space. I mean as far as I know when a programme is executed i.e simple C prog. it contains three sections in memory such as gobal, data and text section. There is somthing called user stack and kernel stack there. whenever a process get the turn to be executed by the scedular its stack contain is copied to the kernel stack(correct me if I'm goin wrong.) Now when we say we execute a system call it jumps to the kernel level. Now if we see the it by kernel stack when the stack frame is executed on which the call to system call is made, how come it jumps to kernel mode.. Now related to this, we say kernel code doesnt have address space, now what does that mean..I mean to execute the code it has to have some memory on which to be reside and get executed.. I think I am much confused and making some furious statements..Please help me out..Really it's burning my midnight oil.. Thanx in Advance, Regards, Jaydeep. __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
