> hi,
> 
> this looks good in general.  a couple small issues:
> 
>  (1) could you move the DEBUG XXXyamt code to uvm_pagefree()
>      (like your comment suggests)?

it's a little difficult to do it in uvm_pagefree
because it needs to map the page somewhere.

as no one else currently uses this,
is it acceptable to allocate 1 page kva in MI code for this?

>  (2) could you add a description of this to the uvm.9 manpage?

i will.

YAMAMOTO Takashi