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    SubjectRe: [RFC PATCH] LTTng relay buffer allocation, read, write
    > A 4 byte dataless payload is useless anyway.

    Not at all convinced that's true - we used it for lots of things.
    Start and end of irq event is one frequent example.

    Also, in a compact mode, we can record start and end of
    syscalls like this (without parameters).


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