CS604 Assignment 3 Solution and Discussion
Assignment # 03
Total marks = 15
27th July 2020
Please carefully read the following instructions before attempting assignment.
RULES FOR MARKING
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• The objective of this assignment is to learn deadlock avoidance algorithm.
• The objective of this assignment is to learn page addressing.
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Question No 01 15 marks
Consider the below given table showing the system state at a certain time. There are five processes P0 to P4 and four types of resources A, B, C and D. The resource allocation, max and available matrices for each process are also given in the table as shown below.
Allocation Max Available A B C D A B C D A B C D P0 0 0 1 2 0 0 1 2 1 5 2 0 P1 1 0 0 0 1 7 5 0 P2 1 3 5 4 2 3 5 6 P3 0 6 3 2 0 6 5 2 P4 0 0 1 4 0 6 5 6
Considering the Banker’s algorithm for deadlock avoidance, answer the following questions.
(a) Compute and show the Need matrix for processes in the system.
(b) Is the system in safe state? If YES, then show the safe sequence. If NOT in safe state, then explain the reason.
Wish you very best of luck!
Ch. Robika last edited by
idea solution plz