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    SubjectRe: How to avoid serial port buffer overruns?
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    On Thu, 2006-08-17 at 00:10 +0100, Russell King wrote:
    > On Wed, Aug 16, 2006 at 05:24:26PM -0500, Paul Fulghum wrote:
    > > Does the MIDI device using the standard N_TTY line discipline?
    > > Are you using the low_latency flag on the serial device?
    > > What type of UART has been tested (16550? other?)
    > > Are you seeing overruns or just lost data?
    >
    > MIDI uses its own driver - sound/drivers/serial-u16550.c. My guess
    > is there's something in the system starving interrupt servicing.
    > Serial is very sensitive to that, and increases in other system
    > latencies tends to have an adverse impact on serial.
    >

    Thanks.

    Have you seen many other reports of serial working reliably in 2.4 but
    not in 2.6? Right now this is the only clue I have to go on...

    Lee

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