Hi Mike. > Or, perhaps we only enable > the shared context ID feature on processors which have the ability to work > around the backwards compatibility feature. Start out like this, and then see if it is really needed with the older processors. This should keep the code logic simpler - which is always good for this complicated stuff. Sam -- 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>