2. Consider the following snapshot of a system with four resource types R1, R2, R3and R4, and four processes A, B, C and D:AllocationR₁R₂RsRRiRaRequestRaAvailableRAR₁R₁₂Ra R₁A101101000000B11000110C10110000D00001Steasejak00Is the system in a deadlock state? If the system is in a deadlock state, list allprocesses that are involve in a deadlock. Show your computation step-by-step;

When two or more processes or threads are stuck in a position where they are waiting for each other…

2. Consider the following snapshot of a system with four resource types R1, R2, R3 and R4, and four processes A, B, C and D: Allocation Request R₁ R2 Rs RA R1 R₂ Rs B RA R1 Available R₂ R3 Ra A 1 0 1 1 0 1 0 0 0 0 0 0 B 1 1 0 0 0 1 1 0 C 1 0 1 1 0 0 0 0 D 0 0 0 0 1 0 1 0 Is the system in a deadlock state? If the system is in a deadlock state, list all processes that are involve in a deadlock. Show your computation step-by-step;

2. Consider the following snapshot of a system with four resource types R1, R2, R3 and R4, and four processes A, B, C and D: Allocation Request R₁ R2 Rs RA R1 R₂ Rs B RA R1 Available R₂ R3 Ra A 1 0 1 1 0 1 0 0 0 0 0 0 B 1 1 0 0 0 1 1 0 C 1 0 1 1 0 0 0 0 D 0 0 0 0 1 0 1 0 Is the system in a deadlock state? If the system is in a deadlock state, list all processes that are involve in a deadlock. Show your computation step-by-step;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: Solve this table using the Multi-level queue scheduling (FCFS, RR, Priority) Time Quantum = 2…

A: To solve the table using the Multi-level queue scheduling with First-Come-First-Serve (FCFS), Round…

Q: 2- Consider a system with 5 process PO to P4, and three resource type, A has 10 instances , B has 5…

A: Banker algorithm Banker algorithm are used to avoid the deadlock(it is a condition where the process…

Q: please help with parts a and b with steps/explanation!

A: Process :Process P1 must complete before P2, P3, and P5P2 must complete before P3 and P4P3 must…

Q: A system has 5 processes and 5 types of resources. The current state of the system is as follows:…

A: The necessary steps for finding the smallest value of λ that keeps the system in a safe state. Step…

Q: Given 3 concurrent processes P1, P2 and P3, we suppose that initially the shared variable x = 4. a)…

A: Solution : Given Data : Initial value of x = 4.

Q: The current allocation and maximum needs of a system having four processes and five allocated…

A: First finding Need matrix : Need(i,j) = Maximum(i,j)-Allocated(i,j) Need = //here we are…

Q: Consider a system of four processes and a single resource. The current state of claim and allocation…

A: We are given resource allocation matrix, based on this we will understand how many resources needs…

Q: Question 1: The following program consists of 3 concurrent processes and 3 binary semaphores. The…

A: Given questions are not interlinked. As per our company guidelines, only one question will be…

Q: Consider the following resource allocation graph, does deadlock exist due to circular waiting {enter…

A: Deadlock means it is infinite starvation and which is a situation where a set of processes are…

Q: There are four processes (P1 to P4) and three resource types (R1 to R3). P1 has been allocated 1…

A: P1 P2 P3 P4| | | |R1 R2 R1 R2 \…

Q: If you wanted to find a solution at this point, what variables could the MRV (minimum remaining…

A: C1, Class 1 - Intro to Programming: meets from 8:00-8:50am• C2, Class 2 - Intro to Artificial…

Q: In the following resource allocation graph, are the processes deadlocked? If “yes” explain why and…

A: In computer science and operating systems, a deadlock occurs when two or more processes, or threads,…

Q: Consider a system consisting of four processes and a single resource. The current state of the claim…

A: Here, We will find the minimum number of units required to be available for this state to be safe.

Q: Suppose there are two Processes B1 and B2. There is one instance of Resource R1 and two instances of…

A: This question is from the subject operating system and to solve this question we should know some…

Q: Given the following Bankers Algorithm representation for a single resource among 4 processes. Does…

Question

2. Consider the following snapshot of a system with four resource types R1, R2, R3
and R4, and four processes A, B, C and D:
Allocation
R₁
R₂
Rs
R
Ri
Ra
Request
Ra
Available
RA
R₁
R₁₂
Ra R₁
A
1
0
1
1
0
1
0
0
0
0
0
0
B
1
1
0
0
0
1
1
0
C
1
0
1
1
0
0
0
0
D
0
0
0
0
1
Stease
jak
0
0
Is the system in a deadlock state? If the system is in a deadlock state, list all
processes that are involve in a deadlock. Show your computation step-by-step;

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Define deadlock.

VIEW

Step 2: Determine if the system is in a deadlock state

VIEW

Solution

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Operating system.
Consider the Follow Resource allocation Graph: T₂ T₁ R₁ R₂ Deadlock Present. O No Deadlock Present: T4, T1, T3, T2 Does this set of tasks contain a deadlock? If not what is a valid order of executions of tasks? T3 O No Deadlock Present: T1, T2, T3, T4 No Deadlock Present: T3, T1, T4, T2 TA
Consider a system containing three periodic tasks: T1 = (10,3), T2 = (30,5), and T3 = (60,6), handled by Rate Monotonic. Solve the scheduling produced by a sporadic server with Ts = 20, Cs = 5, which is scheduled with the other tasks according to the RMA principle. Suppose there are three sporadic jobs S1 = (10,7,30) and S2 = (15,3,60), and S3 = (20,8,70). Work out a timing diagram showing the schedule of the system. Would any deadline be broken?
In a computer system five processes are attempting to proceed with three resource types. The total units of system resources are: (8,9,7). The maximum demands for every process are: P1(3,1,1), P2(3,3,2), P3(5,3,2), P4(5,1,2), P5(8,4,3). The current allocation is: P1 (0,1,1), P2 (2,1,1), P3 (3,1,2), P4 (1,1,1), and P5 (2,3,2). Is this state a safe state? Explain your answer. Please explain in great detail so i can understand .
To not let any process wait longer than 500 ms, a system developer programs the Round Robin procedure with a dynamic time quantum size. With ‘n’ processes ready, the time quantum Q is set to 500 ms/n. What do you think of this scheduling strategy? (In which situations is this strategy feasible, and when is it not? Are there edge cases?) Explain your reasoning.
Suppose processes P1-P4 with the given priorities and resource allocations. 1 is the highest priority and 4 is the lowest priority. Let us also assume that the "no preemption" condition is now relaxed by allowing preemption of resources by processes of higher priority. For example, P3 may preempt P2 or P4 if it needs a resource which they are holding. If P3 preempts one of these processes, say P4, then P4 release all the resources it is holding. Show one sequence of events in which resources are allocated to the 4 processes and the resulting preemptions, if any, until all new requests are serviced. Current allocations are shown below. Each resource has 4 instances. Try to minimize the preemptions as they are expensive. Process ID Process Priority Current allocation New request R1 R2 R1 R2 P1 1 2 1 2 1 P2 3 0 1 1 0 P3 2 1 1 0 1 P4 4 1 1 2 1
In the following resource allocation graph, are the processes deadlocked? If “yes” explain why and state which processes are involved in deadlock. If “not” explain why.
Consider the following snapshot of a system: Allocation Маx Available ABCD ABCD ABCD PO 2001 4212 3321 P1 3121 5252 P2 2103 2316 P3 1312 1424 P4 1432 3665 a. Illustrate that the system is in a safe state by demonstrating an order in which the processes may complete.
Describe the impact that "changing time quantum" has on the process execution of Round-Robin scheduling by first explaining what is meant by the phrase "Time Quantum."
In the following resource allocation graph, are the processes deadlocked? If “yes” explain why and state which processes are involved in deadlock. If “not” explain why.