>From the following article: http://kerneltrap.org/node/2450 We also can see how user and kernel share the same virtual memory space (4G space - for 32bit OS) - the reason is because when both totalled less than 4G space, one pagetable is necessary - thus no TLB flushes. Eg. see past thread: http://www.mail-archive.com/linux-newbie@xxxxxxxxxxxxxxx/msg07039.html -- Regards, Peter Teoh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ