Re: PATCH: cdrecord: avoiding scsi device numbering for ide devices

Jens Axboe
2004-08-10T10:18:17Z

On Tue, Aug 10 2004, Erik Mouw wrote:
> On Tue, Aug 10, 2004 at 10:41:59AM +0200, Matthias Andree wrote:
> > It's not exactly fun if everything can do 48X but your favorite OS
> > (Linux 2.4) is limited to say 8X because it only does PIO in spite of
> > hdparm settings and everything else.
>
> FWIW, we burn CDs at 40x with a 2.4 kernel. It is however a hardware or
> driver related issue: no problems whatsoever with VIA IDE interfaces,
> but only PIO with the CD writer connected to a Promise 20268.

It's not a problem with data CDs, it's only a problem with non-512b
aligned sector sizes (like audio CDs).

--
Jens Axboe