Debugger-Based Record Replay and Dynamic Analysis for In-Vehicle Infotainment

In the first operation tests of In-Vehicle Infotainment systems remaining failures which were not detected by other testing techniques can often be observed. These failures have to be reconstructed in the laboratory in order to be able to debug them. Record and replay concepts enable the automatic reconstruction of execution sequences, but often they disturb the normal execution, require comprehensive instrumentation or can not be implemented for every platform. Our approach considers these criteria by implementing record and replay with a symbolic debugger. Manually locating the root causes of failures during replay is time-consuming. Therefore, we apply dynamic analyses; they can detect anomalies and state changes during a run. The paper presents a collection of analyses which can not be smoothly executed online during operation, but do not cause drawbacks at replay.