On Tuesday 11 January 2005 15:07, Jukka Salmi wrote:
>...
> After a while, the kernel decides to downgrade wd1:
>
> wd1a: error reading fsbn 36275744 of 36275744-36275775 (wd1 bn 36275807; cn
> 35987 tn 14 sn 29), retrying wd1: (aborted command, interface CRC error)
> wd1: transfer error, downgrading to Ultra-DMA mode 5
> wd1(viaide0:1:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using
> DMA) cd1(viaide0:1:1): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using
> DMA)
>
> This is quite reproducible so far.
>
> Hmm, does this look like a bad disk? Hints are appreciated!

It's more likely:

* a marginal cable,
* a marginal host interface, or
* interference from another device.

The good news is that the system is correcting for the problem and functioning 
normally.  :-)