[PATCH] x86_64: Increase the variability of the process stack on 64bit architectures

8MB is not really very random, use 1GB (or more with larger page sizes)
instead.

Also use the low bits of the random generator output now instead of
throwing them away.

Only enabled on x86-64 right now. Other architectures need to add
a suitable STACK_RND_MASK

Cc: mingo@elte.hu
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2006-03-25 16:29:09 +01:00 • committed by Linus Torvalds
commit 913bd90601
2 changed files with 13 additions and 4 deletions