Re: device timeouts on hard disks no matter what..

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Wed, Dec 16, 2009 at 10:08:33PM +0200, Teemu Rinta-aho wrote:
> > On Wed, Dec 16, 2009 at 09:28:05PM +0200, Teemu Rinta-aho wrote:
> >> > On Fri, Dec 11, 2009 at 11:51:32AM +0200, Teemu Rinta-aho wrote:
> >> >> I guess the next step is to move the disks to yet another PC with
> >> >> a bigger power supply.
> >>
> >> The better test was to replace the PSU and keep the rest as is. So
> >> I bought a shiny new 850W PSU today. No difference. But now I have
> >> one extra PSU in my storage. I wonder what should I do next. Now
> >> I have changed all the hardware and the problem is still there.
> >> I am starting to get more suspicious on the software.
> >
> > yes, that doens't look good. however I've never noticed this problem
> > on various ahci hardwares I have.
> 
> Any idea of what should I do next?

unfortunably no, not at this time. It could be an issue with a
specific revision of this AHCI controller ...

> 
> >> Who defines what is the timeout? Does it come from an ATA standard?
> >
> > not specifically, but it's set to 10s which should be more than enough
> > for a read or write.
> 
> So I guess the command never reaches the drive but is lost on the way?

Or the controller doesn't properly get the reply, or fail to post the
interrupt.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--