On (01/23/17 15:27), Joonsoo Kim wrote: > Hello, > > Think about following case in 64 bits kernel. > > If value pattern in the page is like as following, we cannot detect > the same page with 'unsigned int' element. > > AAAAAAAABBBBBBBBAAAAAAAABBBBBBBB... > > 4 bytes is 0xAAAAAAAA and next 4 bytes is 0xBBBBBBBB and so on. yep, that's exactly the case that I though would be broken with a 4-bytes pattern matching. so my conlusion was that for 4 byte pattern we would have working detection anyway, for 8 bytes patterns we might have some extra matching. not sure if it matters that much though. -ss -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>