--snip--
1. no system can be 100% secure, but we can try to be closure.2. Writting a rootkit in kernel space could be 100 times harder compared to security attacks in user space for cases like where you can assess complete memory map.I think I am making my point more cleare now.
Basically, this boils down to the ancient debate of microkernel vs monolithic kernel. In Linux all memory is accessible by root regardless of /dev/mem.
--
John
