Subject: Re: Proposal for generalized MI soft interrupts
To: Charles M. Hannum <mycroft@mit.edu>
From: Bill Sommerfeld <sommerfeld@orchard.medford.ma.us>
List: tech-kern
Date: 01/30/1997 10:05:44 
   Soft interrupts are used as callbacks for hard interrupts.  Since a
   soft interrupt is always registered from a hard interrupt routine,
   it is always blocked at the time it is registered.

What about cases where one soft interrupt needs to trigger another
soft interrupt?  For example: when running from IPL_SOFTSERIAL, you
call the ppp line discipline, and it needs to post an IPL_SOFTNET?

						- Bill