On 1/3/07, James Stevenson <james@xxxxxxxx> wrote:
Yes it can be valid. However there may be purpose to have data there and accessibly but because it's a virtual address it may not have any data mapped to it thus it is invalid.
allowing physical memory access to address 0 and virtual memory access to address 0 is different while i can see a valid use for allowing physical memory access to address 0 (but only in an embedded system), i cannot think of one good reason to allow access to virtual address 0 in light of all the debug catching -mike -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
