no kernel threads => no true multi tasking?

[Dan Langille]

Folks,

I don't know enough to reply this this post:

http://article.gmane.org/gmane.comp.sysutils.backup.bacula.devel/2879

The part I'm concerned about:

"As far as I know, this only happens on FreeBSD 4.11 systems where 
there are no kernel threads and hence no true multi-tasking. More 
precisely, there is no task scheduling (time-sharing) between the 
threads."

Can someone help educate me please?

thanks
-- 
Dan Langille : http://www.langille.org/
BSDCan - The Technical BSD Conference - http://www.bsdcan.org/