There has been a whole bunch of approaches to this over the years, some of them kernel level and others in user space. Search for "checkpoint restart" to find

There has been a whole bunch of approaches to this over the years, some of them kernel level and others in user space. Search for "checkpoint restart" to find some links or start here: http://checkpointing.org/ http://checkpointing.org/ It's all pretty dated though. I did some work on it years ago but it's no longer maintained http://www.science.uva.nl/research/scs/Software/ckpt/ckpt.html http://www.science.uva.nl/research/scs/Software/ckpt/ckpt.ht...