Currently, for embedded systems, the complexity of the software is rapidly increasing due to the advance in the fields of multimedia and network. It is difficult to find the cause of problems. Especially, when the causes of problems are buried in the kernel layer, finding them from application's layer is not easy. One reason of the difficulties comes from that there are not effective tools and functions available for developers. In this paper, we proposes a system named Kernel Analysis System (KAS). It is a prototype system that can find a cause of them more easily by using the analysis model. In this case study, we implement the function to find the timer latency in kernel layer. It can effectively find the cause of them. In the future, we try to generalize the system to find the other causes.