out of swap space?!

[Jon Hamilton]

I am having problems with A/UX 2.0 giving me `Warning: swap space running out.
needed xx pages', where xx varies depending on what I'm trying to do.  I got
several of these errors while the system was doing almost nothing ( I was
logged in on console and ttyC1, and was idle.  I had Blackout and Superclock!
on).  I have 18 meg of disk space allocated to swap, and have not run into
any problems during heavy use (up to 4 'make's at a time).  It seems like
the space isn't being de-allocated when it's no longer needed.  Anybody else 
have this problem?  Any ideas/suggestions would be appreciated.  Email to 
me; I'll summarize if/when I find the problem if there's interest. 

Jon Hamilton
hamilton at kickapoo.cs.iastate.edu