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

[Yinghai Lu]

On Sat, Mar 22, 2008 at 1:48 PM, Arjan van de Ven <arjan@xxxxxxxxxxxxx> 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)
only test ranges that have E820_RAM and exclude range that is early_reserved...
so it is safe.

YH
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