Messages in this thread | | | Date | Wed, 24 Apr 2013 15:51:12 -0700 | From | "H. Peter Anvin" <> | Subject | Re: mm: BUG in do_huge_pmd_wp_page |
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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.
-hpa
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