International Journal of Scientific Research and Engineering Development

In operating system one of the most important task is sharing and allocating resources in the process which are new and running. In multiprocessing environment, resource allocation is can become a point of conflict and this conflict is called deadlock. Deadlock detection is a very important, in this paper overlooked problem that can significantly overall deadlock handling performance affect. In operating system Deadlock is consider as critical problem where each process is waiting for resources which is held by other process, because of these multiple processes are stuck forever. Because of deadlock, performance of system is reducing and if this problem is not handled it can cause to complete system freeze. This paper shows deadlock concept, the condition in which deadlock occurs, and different types of approach like, prevention, avoidance, detection and recovery. The purpose is to explain how operating system manage deadlock and what future methods can improve system reliability