Nicolas,

Nicolas Sebrecht wrote:
> I would like to go further in the Linux kernel internal comprehension.
> Could someone tell me where to find a good starting free documentation ?
> 
> Most of the documentations I've found are about old kernel versions (2.4
> series).

Ask this on the gentoo-kernel list, please. I'm happy to help, but there 
are many people there who would also appreciate being part of the 
discussion.

Thanks,
Daniel