Re: [PATCH] x86_64: early memtest to find bad ram

[Yinghai Lu]

On Sat, Mar 22, 2008 at 2:01 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> Arjan van de Ven wrote:
>  > On Thu, 20 Mar 2008 23:58:33 -0700
>  > Yinghai Lu <yhlu.kernel.send@xxxxxxxxx> wrote:
>  >
>  >> do simple memtest after init_memory_mapping
>  >>
>  >> use find_e820_area_size to find all ram range that is not reserved.
>  >
>  > be careful, there's some special memory that e820 right now says is not reserved,
>  > but still has bios data (the first 4Kb of memory come to mind)
>  >
>
>  Is that true even after Yinghai's changes?  I have lost track of all the
>  patches...

find_e820_area_size should be safe.

YH
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