Well, vanilla V6 had i) partitioned drives (that was the only way to support an RP03), and ii) the swap device in the c.c config file. That's all you need to put swap in its own partition. (One of the other MIT-LCS groups with V6 did that; we didn't, because it was better to swap off the RK, which did multi-block transfers in a single I/O operation.) As best I understand it, the way fork worked in V6 was that if there was not enough memory for an in-core fork (in which case the entire memory of the process was just copied), the process was 'swapped out', and the swapped out image assumed the identity of the child. But this is kind of confusing, because when I was bringing up V6 under the Ersatz11 simulator, I had a problem where the swapper (process 0) was trying to fork (with the child becoming 1 and running /etc/init), and it did the 'swap out' thing. But there was a ton of free memory at that point, so... why was it doing a swap? Eh, something to investigate sometime... Noel