Hi, On Tue, Jun 17, 2008 at 09:27:47PM +0900, Tejun Heo wrote: > Alan Cox wrote: > >> Originally the drive was bought for a different PC with a Silicon Image > >> 3114 controller. The drive worked fine with this (sata_sil). Then I > > > > Ok that proves the point quite nicely. If there is a problem it is not > > the one suggested. > > Yeah, indeed. It's still weird tho. The difference between > ATAPI_PROT_PIO and ATAPI_PROT_DMA is very small especially on ahci. The > data are still transferred using the same FIS. Only the completion > mechanism is different. It would be great to try the drive on another > ahci controller preferably intel one. Luke, do you have access to any > machine which has intel ahci? I tried it out on a machine with an Intel ICH7 controller using the AHCI driver (using a Fedora 9 LiveCD). On the ICH7 the drive wrote a CD without issue, so possibly it's the drive/controller pair that causes the problem. I was careful to ensure I was using the ahci driver and not the ata_piix driver. Luke -- 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
