FOSS gamedev and creative worlds

I frequently get segfaults that seems to be related to vmanip calc_lighting.

http://pastebin.com/wsVhD2d3

Is this something that needs to be fixed in the engine or could be a problem with a mod? It happens in adventuretest (https://www.github.com/bremaweb/adventuretest) and it seems to happen mostly because of vmanip used in mg_villages and/or mg/dungeons.lua

Any help is appreciated.

https://github.com/Bremaweb/adventuretest/blob/master/mods/mg/dungeons.lua#L156
Here try this instead:

Calc lighting should never have emin, emax as arguments, it might have worked in the past but lighting code has evolved.