Subject: Re: new SATA controller/drive _very_ slow (PIO mode 0)
To: Jim Bernard <>
From: Manuel Bouyer <>
List: current-users
Date: 12/24/2007 19:10:03
On Sun, Dec 23, 2007 at 07:14:48PM -0700, Jim Bernard wrote:
> On Sun, Dec 23, 2007 at 07:09:35PM +0100, Manuel Bouyer wrote:
> > >   The fact that it worked at full speed with dma under knoppix indicates that
> > > it can be done.  The question is how difficult it is to fix, and whether it's
> > > preferable just to buy a different card and hope it works better, i.e., that
> > > it's a problem with support for the card and not a drive quirk.
> > 
> > It may be a drive problem at this point. The best way to know would be
> > to test the controller with another drive, if you have one handy.
>   I don't have another one, unfortunately.  Keep in mind that it worked fine
> under knoppix (linux on a cd) with dma, so it seems difficult to see how
> there could be a problem with either the card or the drive.

Knowing if this controller works fine with another drive, or this drive with
another controller, would help a lot to locate the problem under NetBSD.
The fact that it works with knoppix indicates it can work, but it doesn't
tell how.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference