Question

What is a solution to the problem of having a deadlock in a Round Robin scheduling system

Answer 1

The basic Round Robin scheduling does not cause deadlock.

But if there are two locks in the processor, and one process holds the first lock and attempts to achieve the second lock, which may be further acquired by another processor , in such a case the system may be in a deadlock.

To resolve such kind of deadlock, a check for progress , that is, if within 1 time slice, the system progresses with nothing and their is no change in the state of the processes, then all the locks are released by the processes, and system resumes processing from the current state, with the processes already in the ready queue or waiting state.

The releasing of all locks and thus releasing all resourced acquired by the processes will release the system from deadlock to running state.

Hope you get your answer

thankyou