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Banker's Algorithm

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Question

Consider following table showing the max demand of each process & currently allocated resources to the process. There are total 15 resources. Which of the following is not safe sequence?
$\begin{matrix} Process & Maximum Demand & Current Allocation P_{1} & 5 & 2 P_{2} & 2 & 1 P_{3} & 7 & 1 P_{4} & 10 & 5 P_{5} & 12 & 3 \end{matrix}$

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Solution

Available : 15 -12 = 3

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Q. An operating system uses the Banker's alogrithm, for deadlock avoidance when managing the allocation of three resource types X, Y, and Z to three processes P0, P1, and P2. The table given below presents the current system state. Here, the Allocation matrix shows the current number of resources of each type allocated to each process and the Max matrix shows the maximum number of resources of each type required by each process during its execution.

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P0 P1 P2	0 0 1 3 2 0 2 1 1	8 4 3 6 2 0 3 3 3

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