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SubjectRe: bisected boot regression post 2.6.25-rc3.. please revert
Ingo Molnar wrote:
> * Nish Aravamudan <nish.aravamudan@gmail.com> wrote:
>
>>> in any case, the commit has to be reverted as it clearly isnt a NOP
>>> on your box as it was intended to be. (it should only have made a
>>> difference in a rare hugetlbfs case)
>> On x86/{,_64}, _PAGE_PSE and _PAGE_PROTNONE are the same bit. Would
>> that have any effect here? We encountered that collision when adding
>> mprotect() support for hugepages.
>
> well, this is the PMD, and PROTNONE is a pte property.

The PSE bit in the PTE becomes the PATX bit. It shouldn't ever be set
in Linux.

-hpa


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