On Wed, Dec 26, 2007 at 10:11:31PM +0100, Frank Wille wrote:
> pciide0: Marvell 88SE6101 single-port PATA133 Controller (rev. 0xb2)
> pciide0: bus-master DMA support present, but unused (no driver support)
> pciide0: primary channel configured to native-PCI mode

OK, unsupported ATA controller looks like a very good culprit.

Joerg