Alpha Linux process and swap size limits?

[John Connett <jrc art-render com>]

I vaguely remember from earlier messages to this list that there is an
alpha linux 2.2.x kernel imposed upper limit to the amount of physical
memory supported.

Are there any hard upper limits imposed on process size or swap size? 
If so, what are they?

Thanks in anticipation
--
John Connett (jrc@art-render.com)