Special schedulers, one CPU only kernel, one only userland

[gnn at freebsd.org]

At Thu, 18 Aug 2005 12:06:25 -0700,
brooks wrote:
> Certainly we need assurance that nothing is going to try and touch
> the driver before the driver's detach function calls if_free.  After
> if_free returns, no aspect of the driver should touch the ifnet.  Other
> parts of the networking system might still have refrence to it should we
> end up with a refcouting scheme where the final free of ifnets comes
> some time later.  All refrences to the softc need to be pruged prior to
> exit from the detach routine.
> 

Documentatoin comment.  When are we going to write a driver writer's
handbook?

Later,
George