> I tried to work through some examples to develop some intuition about this: Sorry, gmail inserted line breaks that ruined this picture. Here's a URL for it: http://www.asciiflow.com/#3736558963405980039 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html