Hi Arjan > 1) Performance: By changing the stack to different positions, you get > less cache aliases, so you can use the cpu cache better What do you mean by "cache alias"? Mapped to same cache line? > 2) Security: By having a different and unpredictable stack place in > memory, stack based buffer overflow exploits are harder to create. > (and in combination with other security measures, really really hard > ;) BTW, does that mean, it also immune against brute force style attack (e.g combining shell code with various number of NOPs)? This is assuming stack area still allow executable pages. regards Mulyadi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
