On 9/4/24 11:40, Liam R. Howlett wrote: > But those ranges won't exist. What appears to be happening in this code > is that there are higher levels of non-overlapping ranges with > memory (cache) types (or none are defined) , which are tracked on page > granularity. So we can't have a page that has two memory type. Yeah, that's the key. Each page should be uniquely covered by one and only one tree leaf. Nam, I didn't see your original patch in my inbox and I don't see it on lore either. Is there something funky going on there?