OK it’s not OS specific then.
I had an suspision it had to do with the raytracing going havoc, a ray going for infinity or something. (I don’t know form the error log but it looks like that)
So I tried rendering with the render branch but it still crashes.
I did render with OpenGL from the viewport, and it works. so it’s not the simulation that breaks.
It has to do with Indirect Lightning AND particle systems. because indirect lightning works well if I just had the meshes sitting there.
so beats me, there’s a bug report on it, if I now could search my report I could update it with this.