Re: 2.4.19 ATAPI cdrom I/O errors when reading CD-R

From: Adrian Bunk (
Date: Fri Aug 16 2002 - 12:35:02 EST

On Fri, 16 Aug 2002, Jean Delvare wrote:

> > > Could you please try to read the same CD-R with kernel 2.4.18? If
> > > you still can't read the CD, try with kernel 2.4.17, and so on back
> > > to 2.2.20, so we have a chance to find the change causing the
> > > problem. (Be careful to skip problematic kernels, 2.4.15 and 2.4.11
> > > come to mind.)
> >
> > This is a joke, isn't it?
> Hm no, wasn't. I couldn't see another solution. Seems a bit hard to
> reproduce on another system, since it must be related to the specific
> hardware (drive, writer and CD-R) used.

The way you suggested to check for the first kernel version that was
broken works if you want to find the exact version when something breaks
e.g. between -pre3 and -pre6. Between two major releases of Linux there
1. too many releases and
2. the development kernels might be broken in _many_ different ways which
   would make it hard to find the version where the current breakage
   occured first; and not to forget
3. it costs much time to compile try let's say 40 different kernels (not
   to mention that each of them has its' unique bugs)

> What would you suggest?

Someone with a better knowledge of ATAPI might be able to understand what
the error messages say and to either understand the problem or to tell how
to trace it down.



You only think this is a free country. Like the US the UK spends a lot of time explaining its a free country because its a police state. Alan Cox

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