Thanks for replying Jason.

Could you give me a URL for a whitepaper or background information 
about the work that's being done in this area, please?  Entering 
"threads" into NetBSD's google search engine produces lots of hits, 
but no reference material I could see.


>Yes, we're hoping the next release can have them.  There is a development
>branch of the source tree that implements Solaris-style LWPs + scheduler
>activation upcalls, and a pthread library that uses them.
>
>--
>         -- Jason R. Thorpe <thorpej@wasabisystems.com>