Subject: Re: 40x CD-R without UDMA?
To: Daniel Carosone <>
From: Manuel Bouyer <>
List: current-users
Date: 12/18/2002 10:46:54
On Wed, Dec 18, 2002 at 10:49:36AM +1100, Daniel Carosone wrote:
> On Tue, Dec 17, 2002 at 09:57:59PM +0100, Manuel Bouyer wrote:
> > DMA2 can do 16MB/s, if my math is right 40x is 12MB/s (and 48x is 14.4)so it
> > can, but it has better be alone on the bus.
> I think it's only 6 - I understood "1x" to be 150K/s. I wasn't sure
> about dma2, though.

Yes, you're right, 1x is 150K, not 300.

> I forgot to mention a couple of other things that might be pertinent:
>  - the machine in question is running current as of a month or so
>    ago; though I don't have access to it now to check, if 1.17 is
>    in 1.6 and still in current today, then that machine will be
>    running the same rev.

Yes, the change was made in april.

>  - pciide0 at pci0 dev 0 function 1: Silicon Integrated System 5597/5598 IDE controller (rev. 0xd0)

I played with such controllers, and the fix worked for me. It may be dependant
on the ATAPI device.

Manuel Bouyer, LIP6, Universite Paris VI. 
     {Net,Free}BSD: 23 ans d'experience feront toujours la difference