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    SubjectRe: [PATCH] Experimental IDE oops dumper v0.1
    On Mon, Sep 16, 2002 at 05:43:50AM -0400, Rob Landley wrote:
    > On Monday 16 September 2002 08:39 am, wrote:
    > > Talking about dumping oopsen, would there be any usefulness in outputting
    > > crash data to the PC speaker, using a slow, (~300 bps) modulation that
    > > would survive being captured on a cassette using a walkman with a
    > > microphone, then decoded using a userspace program from a sampled .au file?
    > This is easier and less error-prone than copying the oops down by hand?

    Works in X. Hand copying doesn't. But serial (or printer) console is
    probably easier.

    > I remember using 300 bps. On a closed electrical circuit without acoustic
    > couplers, you still got line noise. Acoustic couplers put the speaker and
    > microphone right on top of each other and surrounded them with a muffler to
    > try to minimize ambient noise from the room...

    Well, this is simplex only, so it's a bit easier. And we could use even
    slower speed, 75 bps would also work.

    > > Just thought it might be easily implementable, as it doesn't have any
    > > pre-requisits, (other than having a PC speaker, which *almost* everybody
    > > has).
    > Not everybody has a tape recorder, though.
    > And the -ac branch already does output in morse code. Try taping that and
    > writing a user mode interpreter for it, if you like...

    Vojtech Pavlik
    SuSE Labs
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