Special schedulers, one CPU only kernel, one only userland

Christian Brueffer chris at unixpages.org
Fri Aug 19 08:33:22 GMT 2005


On Fri, Aug 19, 2005 at 11:08:20AM +0900, gnn at freebsd.org wrote:
> 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?
> 

Well, Jochen Kunz has already written a nice guide for NetBSD... :-)

- Christian

-- 
Christian Brueffer	chris at unixpages.org	brueffer at FreeBSD.org
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