On Mon, May 10, 2010 at 12:41:07PM -0500, Christoph Lameter wrote: > A simple way to disallow migration of pages is to increment the refcount > of a page. Ok for migrate but it won't prevent to crash in split_huge_page rmap walk, nor the PG_lock. Why for a rmap bug have a migrate specific fix? The fix that makes execve the only special place to handle in every rmap walk, is at least more maintainable than a fix that makes one of the rmap walk users special and won't fix the others, as there will be more than just 1 user that requires this. My fix didn't make execve special and it didn't require execve knowledge into the every rmap walk like migrate (split_huge_page etc...) but as long as the kernel doesn't crash I'm fine ;). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>