Hi ! On 6/27/08, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote: > Is it true that the values of CR3 never change throughout the kernel > life time? Ie, it points to based of the pagetable....so unless the > pagetable is migrated it is not necessary to change. It change whenever there is context switching between processes. Since threads which belong to same parent share PGD, CR3 stays still if a thread change to another thread which belong to the same parent (thus share same tgid) > And when the kernel switch to the userspace , each different process > should have its own per-process pagetable...so in this case the CR3 > will change its value per-process, correct? CR3 stays the same when there is a switch between user space to kernel space or vice versa (if there is no preemption in between...of course). 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
