in the last daily build I encountered a "stable" crash of the scene, unfortunately I do not have the opportunity to pack the scene now, a lot of work, but I will describe at least in words, better than nothing:
It was the big plane with 1 polygon (i tried a plane with a shell modifier also) with CoronaDisplacementMod (tried Displace slot in mtl also) with PhoenixFDOceanTex in vector mode plugged through Vector Displacement Map
It was basic CoronaPhysicalMtl water shader with roughness 0.01 and enabled Volumetric scattering (grey color + ~40cm distance)
Scene crash occurs every time I start rendering (interactive or production) while enabling Scattering color different from black, without scattering - everything works just fine.
In 9.1 everything works as expected.