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    SubjectRe: zero-copy TCP
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    > i think it's a quality of implementation issue. The csum_copy_generic
    > thing is a bug. Allowing incorrect checksums to be sent out would be a
    > design bug. I think some RFCs do even forbid the sending of incorrect
    > packets?

    You are perfectly at liberty to send invalidly checksummed packets. Its
    a design decision. The remote simply discards the frame

    Alan

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