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    SubjectRe: [PATCH] x86_64: early memtest to find bad ram
    On Sat, Mar 22, 2008 at 1:48 PM, Arjan van de Ven <arjan@infradead.org> wrote:
    > On Thu, 20 Mar 2008 23:58:33 -0700
    >
    > Yinghai Lu <yhlu.kernel.send@gmail.com> 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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