Re: 2.4.0 CDROM problem, ILLEGAL REQUEST

[Jens Axboe]

On Sun, Jan 21 2001, Gregory T. Norris wrote:
> When playing audio CDs under kernel 2.4.0, syslog is showing the
> following message repeatedly:
> 
>      sr0: CDROM (ioctl) reports ILLEGAL REQUEST.
> 
> The command line utility cdplay seems to only cause this occasionally,
> when I start playing a CD or skip to a different track, while gnome's
> gtcd will generate it every few seconds... presumably gtcd is regularly
> querying the drive.
> 
> I'm pretty sure that this wasn't occurring under the 2.4.0-testX
> kernels, but I haven't verified this as they aren't currently
> installed.

Yes it's a new and known bug, sr_do_ioctl now does retries etc for
queued packets from the uniform layer and thus we get some printkts
that you normally wouldn't see. The error should only be cosmetic.

-- 
* Jens Axboe <[e-mail]>
* SuSE Labs