Re: [patch] mm: sparsemem memory_present() memory corruption fix

[Yinghai Lu]

On Tue, Apr 15, 2008 at 5:19 PM, Christoph Lameter <clameter@xxxxxxx> wrote:
> On Wed, 16 Apr 2008, Ingo Molnar wrote:
>
>  > if a !PAE x86 kernel is booted on a 32-bit system with more than
>  > 4GB of RAM, then we call memory_present() with a start/end that
>  > goes outside the scope of MAX_PHYSMEM_BITS.
>
>  Well okay this fixes it but is this the right fix? The arch should not
>  call memory_present() with an invalid pfn.

yes in find_max_pfn...

YH
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