On Sun, Mar 05, 2006 at 06:40:58PM -0500, Jeff Garzik wrote: > 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... Yeah, this is an ICH7. I can't find anything in drivers/ide that would result in it being done, which is why I'm kind of confused. ide_ack_intr seems to be defined to do nothing on x86 since IDE_ARCH_ACK_INTR isn't defined there? -- Matthew Garrett | mjg59@xxxxxxxxxxxxx - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
