Re: 1M hugepage size being registered on Linux
From: Benjamin Herrenschmidt <hidden>
Date: 2017-06-22 08:09:57
On Thu, 2017-06-22 at 13:59 +1000, Michael Ellerman wrote:
It's unsupported in Linux because it doesn't match the page table
geometry.
We merged a patch from Aneesh to filter it out in 4.12-rc1:
a525108cf1cc ("powerpc/mm/hugetlb: Filter out hugepage size not supported by page table layout")
I guess we should probably send that patch to stable et. al.It's also not supported in HW afaik, why is it there ? Cheers, Ben.