Hi Mel, did you see my proposed fix? I'm running with it applied, I'd be interested if you can test it. Surely it will also work for new anon-vma code in upstream, because at that point there's just 1 anon-vma and nothing else attached to the vma. http://git.kernel.org/?p=linux/kernel/git/andrea/aa.git;a=commit;h=6efa1dfa5152ef8d7f26beb188d6877525a9dd03 I think it's wrong to try to handle the race in rmap walk by making magic checks on vm_flags VM_GROWSDOWN|GROWSUP and vma->vm_mm->map_count == 1, when we can fix it fully and simply in exec.c by indexing two vmas in the same anon-vma with a different vm_start so the pages will be found at all times by the rmap_walk. -- 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>