> Yeah, it's not a water-tight solution.  I don't think we can do that
> with IRQ enabled during transfer.  So, we can have either highly jerky
> but reliable system if PIO is used or usually better behaving PIO with
> some chance of getting nobody-cared.  Also, we can flag known buggy
> devices/controllers such that IRQ is disabled over PIO by default.  I
> think it's worth doing but this definitely should be debated better.

Which leaves us back at enable/disable_irq as with the old IDE - which
*are* much better because most of the time the IRQ isn't shared. Sucks
when it is but that is life.
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