Show HN: Page-info – Determine the attributes of any region of memory

Sometimes you just want to know exactly what type of page is backing your memory region - because the behavior of 2MB huge pages can be very different than normal 4KB pages - and when using transparent hugepages there is no guaranteed on what type you will get (and you might get a mix)!

This mostly trivial utility lets you query the page type at runtime - allowing you to answer the above question exactly, as well as others like "has this page been committed yet?" or "has this page been swapped out?".

Feedback welcome.