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    SubjectRe: 2.4 MM overview?
    On Sun, Oct 15, 2000 at 05:29:46PM +0100, Kenn Humborg wrote:
    > <Surprise!>
    > __pa() and __va() are still defined as addr -/+ PAGE_OFFSET. So
    > where did I hear about 2.4 not mapping all memory? Could it be
    > that this applies only to "high memory" in x86?

    It only applies to high memory. To access it you have to use kmap().
    To use __pa you need to create a bounce buffer in lowmem first as of 2.4.


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