Re: [BUG] Kernel disables DMA on RICOH CD-R/RW

[Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>]

On Thu, 18 Nov 2004 09:16:27 +1100, Srihari Vijayaraghavan
<sriharivijayaraghavan@yahoo.com.au> wrote:
> On Thu, 18 Nov 2004 08:06 am, Jens Axboe wrote:
> 
> 
> > On Wed, Nov 17 2004, Alan Cox wrote:
> > > On Maw, 2004-11-16 at 13:01, Bartlomiej Zolnierkiewicz wrote:
> > > > Previously VIA IDE driver ignored DMA blacklists completely
> > > > (which was of course wrong), it was fixed.
> > > >
> > > > Probably this drive should be removed from the blacklist.
> > > > Does anybody remember why was it added there?
> > >
> > > As I said before almost all of our blacklist is junk from when the IDE
> > > ATAPI DMA bug wasn't fixed.
> >
> > I sure don't remember why, so sounds plausible.
> 
> Could you please accept this patch? (against vanilla 2.6.10-rc2)
> 
> I have tested my RICOH CD-R/RW with this patch (on CD Reading/Writing), and it
> works just fine with DMA enabled.
> 
> (Unfortunately I do not have any other drive in the DMA disabled list, and
> hence I could not test for them.)

applied