Both were accompanied by severe lag spikes beforehand, and ended in my computer totally freezing for 10 or more minutes. I have my terrain all the way down, since I usually get 10 FPS if I have grass enabled. I get a solid 40 (with lag spikes in between) with it off. Some random "No configured storage engine" error blocked me from attaching it directly, so here's links to the files in drive:

https://drive.google.com/file/d/0B-kY0h20VNNIbUk1YzFFWlY4c00/view?usp=sharing
https://drive.google.com/file/d/0B-kY0h20VNNIRXlsMzF0VjdtTjg/view?usp=sharing