Re: PATA failure with piix, works with libata

[Jeff Garzik]

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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