Re: Cannot enable DMA on SATA drive (SCSI-libsata, VIA SATA)

[Alan Cox]

On Sad, 2004-08-28 at 00:45, Petr Sebor wrote:
> just a 'me too' e-mail... I have Master2-FAR mobo, VIA/KT800 chipset.
> IDE disk runs like a charm but SATA disks consume big amount of cpu
> time (which is spent in iowait). The system behaves exactly as with
> old IDE disk and DMA disabled... everything is slow when data is 
> transferred to/from disk.

Make sure you enable the SCSI later, SATA drivers and VIA SATA driver
otherwise you may end up using PIO with the PCI generic IDE driver.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/