I have a very simple example (just one big box 10E+100 m long in z). A very simple physics list... And all the sudden it crashes in G4Box::DistanceToOut. It seems that this can be avoided by reducing the size of the Box. This can be seen with the code in: /afs/cern.ch/user/i/iglez2/public/G4bug/bug.tar.gz Just gunzip and untar it, compile it with your prefered set of env variables. And run it. PS.: It was tested with G4.3.2
The geometry you're trying to define does not make much sense, since Geant4 expects that the detector geometry you're interested to should be placed -inside- a mother world, while here you're trying to use it directly as the world. Please, try placing it inside a bigger mother box. We'll however investigate the way to avoid such crashes also for improper use of the world volume. Thanks.
