Some Questions about Kernel Page Table

Mulyadi Santosa mulyadi.santosa at
Thu Jan 6 22:52:23 EST 2011


On Fri, Jan 7, 2011 at 10:40, lichangshou <chungzhou at> wrote:
> Hi all,
> In linux-, the page size of kernel image is 2M, which means that the
> entity in pmd is PFN pointing to physical page.
> For research, I want to change the page size of kernel image to 4K.
> modified the content of pmd to make each entity of pmd point to a new page
> table.

OK hold it right there...what does PMD have to do with page size
change? Isn't that like falling back from using hugetlb to usual page


Mulyadi Santosa
Freelance Linux trainer and consultant


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