Mark Lord wrote:
Just about everything can do some form of DMA nowadays, but regardless of that the sata_mv chipsets have errata for PIO of anything more than a single sector. In practice, I haven't managed to trigger the issue here, but the errata descriptions indicate that it should be a major issue for any volume of multi-sector PIO commands.
I need to review the state of PIO-multi, but IIRC it's not used by default. We should be able to handle this errata without banning all PIO... Jeff -- To unsubscribe from this list: 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
