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SubjectRe: sata_via: SError: { UnrecovData Proto TrStaTrns }
> I guess you didn't see Alan Cox' recent comment about the vt6421:
> <http://marc.info/?l=linux-ide&m=125526699500519&w=2>.
>
> You should probably look for a mini-PCI card with a different chipset.

Docs have appeared - whether they will help tie it down completely I
don't know.

> > -RAID bus controller: VT6421 IDE RAID Controller (rev 50)
> > +IDE interface: VT6421 IDE RAID Controller (rev 50) (prog-if 8f [Master
> > SecP SecO PriP PriO])

That shouldn't matter of itself - its basically header differences
> >
> > - Control: Mem- FastB2B+ ...
> > + Control: Mem+ FastB2B- ...
> >
> > Mem - I guess x86-64 enables it for BIOS access. This is the only PCI
> > device in machine A (ARM).
> >
> > - Latency: 32
> > + Latency: 64

These two may be worth playing with, especially latency. Forcing the
latency on the problem board would be interesting given that it is a DMA
transfer that is failing.


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