If an application exits from the PreInit state, the QGSP_BERT physics list causes a segfault because the G4HadronPhysicsQGSP_BERT dtor include deletion of model pointers contained in a "tpdata" object which has not yet been instantiated. The dtor should test for (tpdata != 0) before deleting its contents. NOTE: I have fixed this problem in the hadron_inelastic/ physics constructors at the HEAD of the SVN repository. Other constructors may have analogous issues with different object names.
Mike introduced fix. Verified that same strategy is not used in other constructors. Tag phys-ctor-hinelastic-V10-00-03 created.