Lex,

> EROS could do it, however.  EROS is an operating system that
> automatically pages memory to disk as you run -- very OOZE-like!  EROS
> is very careful in the order it saves things to disk; at any 
> time, there is one complete and consistent snapshot, and one
> snapshot being built. 

Do you have any pointers to how they do this?! The thing I'm mostly
interested here is how they deal with any kind of "external" resources
(e.g., network connections etc).

Cheers,
  - Andreas