[quote name='komodo']I hadn't noticed it performance wise (Don't shoot me) but just as a matter of course, habit from running on OS X to have a tail -f log running on second screen, to see when its going to crash. I haven't seen this one before though, and its on linux x64 besides. It has to be an addon, but i've not had a chance to run down which one. I'm not at home at the moment, but i'll try to upload a list next time i'm able. (Plus the log, for that matter). Perhaps we can determine between us what common mod might be amiss.[/QUOTE]
It was doing this with no mods installed at all. I reported the bug to squad. Workaround is to run ksp.exe with the -nolog option