Re: CD writing in future Linux (stirring up a hornets' nest)

[Joerg Schilling <schilling@fokus.fraunhofer.de>]

Lee Revell <rlrevell@joe-job.com> wrote:

> On Thu, 2006-02-02 at 16:09 -0500, Jim Crilly wrote:
> > Apparently O_EXCL was added by Ubuntu and Debian to stop
> > burns being corrupted by hald polling the device while a disc is
> > being burned. 
>
> IO priorities are the correct solution...

No, they are not. 

The correct solution is to implement "hald" in a _cooperative_ way 
like e.g. vold on Solaris.

The main point is not to poll to frequent (Solaris does once everz 3 seconds)
and to use SCSI commands only that to not interrupt or disturb CD/DVD-writing.

Jörg

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