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[Václav Šmilauer <eudoxos@xxxxxxxx>]

Although I can't check for time reasons now, I strongly suspect this
line (pkg/common/Engine/PartialEngine/RotationEngine.cpp:62):

state->vel=state->angVel.cross(l);

As you recall, Eigen doesn't handle cross product with zero vectro
specially; if angVel is zero (at the beginning), state->vel will be NaN.

-- 
bzr2255 crash on examples/rotatingCylinder.py
https://bugs.launchpad.net/bugs/585898
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Status in Yet Another Dynamic Engine: New

Bug description:
When I run examples/rotatingCylinder.py with bzr2255 (default profile) I got a crash after several iterations. Seems it related with velocityBins mechanism:

 Yade [1]: INFO  yade.VelocityBins /home/sega/work/yade/trunk/pkg/common/DataClass/VelocityBins.cpp:33 setBins: New number of bins: 5
FATAL yade.VelocityBins /home/sega/work/yade/trunk/pkg/common/DataClass/VelocityBins.cpp:77 setBins: Body #4483, velSq=nan not put in any bin!?
Crash!