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SubjectRe: PATA failure with piix, works with libata
Matthew Garrett wrote:
> Ok, it /seems/ that things are happier (though still not entirely happy)
> if I explicitly acknowledge the interrupt by writing the dma status
> register back again. This doesn't seem to be done anywhere in the IDE
> interrupt routine, but is in the libata one. I'm afraid I don't
> understand IDE well enough to have any idea what's going on here - is it
> possible that a piix in native mode (rather than legacy mode) and
> sharing an interrupt needs some special handling?

ICH definitely needs that irq ack...

Jeff



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