ATAng no PIO fallback?

[Mark Huizer]

> For the kernel before ATAng:
>    see dmesg.beforeATAng
> 
> For a small list of DMA according to Windows XP
>    see dmesg.windows
> 
> I'm still looking how I can get it to boot with a kernel after ATAng.
> It fails with "ad0: WARNING: READ_DMA ICRC warning" or something like
> that.
> 
With ata_dma and atapi_dma set to zero I can boot the box (hey, that's
as expected :-).

acpi_cpu: throttling enabled, 16 steps (100% to 6.2%), currently 100.0%
ad0: 117246MB <Maxtor 6Y120L0> [238216/16/63] at ata0-master PIO4
ata1-slave: FAILURE - ATA_IDENTIFY status=51<READY,DSC,ERROR>
error=4<ABORTED>
acd0: CDRW <PHILIPS CDRW4012P> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s2a

So the DVDROM drive is missing.

Mark