> Povl H. Pedersen wrote:
>
> > BTW: I have for the first time gotten disk corruption
> > using the 2.4.0-0.15mdk kernel and UltraDMA with idetune
> > and:
> > hdparm -d 1 -c 1 /dev/hda
> > hdparm -d 1 -c 1 /dev/hdd
>
> Some Western Digital HDDs have bodgy UDMA and have to be run with it
> disabled under *any* kernel.
Both my harddrives are IBM drives, and has been working under kernel 2.2.x
and Windows without any trouble running UDMA, and a 66MHZ FSB overcloked
to 83MHz (I have the idebus=41 as a bootparam to make sure nothing wrong).
They are: IBM-DPTA-372050 and IBM-DTTA-351350.
And the whole idea of UDMA-33 / UDMA-66 / UDMA-100 is, that you wonøt
get errors as the protocol has error-correction/checksumming whatever,
so that UDMA should be the safest bet.
