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    SubjectR: How to avoid serial port buffer overruns?
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    > OK, thanks.  FWIW here is the serial board we are using:
    >
    > http://www.moschip.com/html/MCS9845.html
    >
    > The hardware guy says "The mn9845cv, have in default 2 serial ports and
    > one ISA bus, where we have connected the tl16c554, quad serial port."
    >
    > Hopefully Ingo's latency tracer can tell me what is holding off
    > interrupts.

    That may be an interrupt-sharing issue: quad port often use at most two irq lines and, FWIK, ISA irqs are edge-triggered, not level-triggered. Are you tring to use two MIDI ports at the same time?

    Giampaolo

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    > Lee
    >
    >
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