message: TimeStamp::now() is the culprit, rdtsc() extra stuff causes the segfaults
diff: @@ -31,7 +31,7 @@ namespace ospray {
  TimeStamp() { t=now(); };
  //! \brief returns global time(stamp) at time of calling
  - static inline TimeStamp now() { return ospcommon::rdtsc(); }
  + static inline TimeStamp now() { return ospcommon::read_tsc(); }
  //! \brief Allows ot typecast to a uint64_t (so times can be compared)
  inline operator uint64_t () const { return t; }
  