Messages in this thread | | | Date | Mon, 03 Mar 2008 09:58:10 -0800 | From | "H. Peter Anvin" <> | Subject | Re: 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
| |