GATE | GATE-CS-2000 | Question 49

Let m[0]…m[4] be mutexes (binary semaphores) and P[0] …. P[4] be processes.
Suppose each process P[i] executes the following:

  wait (m[i]); wait(m[(i+1) mode 4]);

  ------

  release (m[i]); release (m[(i+1)mod 4]); 

This could cause:
(A) Thrashing
(B) Deadlock
(C) Starvation, but not deadlock
(D) None of the above


Answer: (B)

Explanation: See question 2 of https://www.geeksforgeeks.org/operating-systems-set-1/

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