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    SubjectRe: [PATCH] (Longhaul 1/5) PCI: Protect bus master DMA from Longhaul by rw semaphores
    Ar Iau, 2006-06-29 am 14:03 +0200, ysgrifennodd Bart Hartgers:
    > > "snooping". So we do need the cache sorting out.
    > >
    > If I understand correctly, trouble occurs when the processor tries to
    > snoop? Would disabling (via MSR) and flushing the caches before changing
    > the frequency help in that case?

    I would think so. Some other processors have similar requirements for
    deep sleeping.


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