Messages in this thread | | | Date | Fri, 26 Apr 2013 10:30:30 +0900 | From | Minchan Kim <> | Subject | Re: mm: BUG in do_huge_pmd_wp_page |
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Hello hpa,
On Wed, Apr 24, 2013 at 03:51:12PM -0700, H. Peter Anvin wrote: > On 04/10/2013 01:02 AM, Minchan Kim wrote: > > > > When I am looking at the code, I was wonder about the logic of GHZP(aka, > > get_huge_zero_page) reference handling. The logic depends on that page > > allocator never alocate PFN 0. > > > > Who makes sure it? What happens if allocator allocates PFN 0? > > I don't know all of architecture makes sure it. > > You investigated it for all arches? > > > > This isn't manifest, right? At least on x86 we should never, ever > allocate PFN 0.
Thanks for the confirm.
-- Kind regards, Minchan Kim
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