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    SubjectRe: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch
    Hugh Dickins wrote:
    > On Wed, 1 Oct 2003, Jamie Lokier wrote:
    > >
    > > See recent message from me. All you need is a check "address >=
    > > TASK_SIZE", which is thread already at the start of do_page_fault.
    >
    > What about the 4G+4G split?

    Whoever is looking after the 4G+4G patch can deal with it, presumably.
    It'll be the same condition ad 4G+4G uses to decide if it's an access
    to userspace (needing a search of the vma list), or not.

    -- Jamie
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