IDE DMA Blacklist?

[Daniel Robitaille]

On Mon, 3 Jan 2005 10:52:36 -0800, Daniel Robitaille
<robitaille at gmail.com> wrote:
> > > > Have you tried using 'hdparm -d1' to force DMA?
> > >
> > > yes (as described in my original post for this thread).  That command
> > > works for me in Warty, but not in Hoary.
> >
> > Sorry, I had deleted your original post.  Are you running a different
> > kernel in Hoary?
> 
> I'm running the default Hoary's kernel.  But since  it is a warty to
> hoary upgrade, the old warty kernel must still be around in /boot; I
> should try to boot with it to see what happens.

And I got my answer.  If I try to set DMA for my drive in Hoary using
kernel 2.6.9 or 2.6.10, I get an error.  If I boot Hoary using Warty's
kernel, everything works fine, and I can turn on DMA for the drive;
i.,e  the same behaviour than when I'm using Warty.  I have created a
bug about it:
https://bugzilla.ubuntu.com/show_bug.cgi?id=5186