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    SubjectRe: route cache DoS testing and softirqs
    Date
    Hello!

    > This sounds reasonable. However as a start I was thinking at having
    > hardirq run only the softirq they posted actively, and local_bh_enable
    > run only the softirq that have been posted by the critical section (not
    > from hardirqs happening on top of it).

    To all that I remember Ingo insisted that the run from local_bh_enable()
    is necessary for softirqs triggered by hardirqs while softirqs are disabled.
    Otherwise he observed random delays and redundant scheduler activity
    breaking at least tux fast path.

    Alexey
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