Re: Recent 2.6 kernels can't read an entire ATAPI CD or DVD

From: Jens Axboe
Date: Fri Jul 30 2004 - 01:40:11 EST


On Fri, Jul 30 2004, Robert Love wrote:
> On Fri, 2004-07-30 at 08:10 +0200, Jens Axboe wrote:
>
> > Strange, something else must be accessing the drive at the same time.
>
> Don't see anything.

There must be something if you have the buffer io errors and matching
sector number.

> > If it's just playback, don't bother.
>
> Did not work anyhow.
>
> > So the question is - what else is accessing the drive?
>
> Nothing but the CD player - it is doing CDDB, though, so that is where
> the reads are coming from.

CDDB lookups don't generate io to the drive (apart from that it already
grabbed to show you the toc).

> It works/fails consistently - for example, I have one CD that never
> works and one CD that does, as if the CD is physically damaged. Works
> elsewhere, though.

And the CD that never works, is that consistent across different drives?

--
Jens Axboe

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