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Operating System Deadlock Galvin

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Sonali Chauhan
Sonali Chauhan
Technology
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Operating System: DEADLOCKS SONALI C. BSc (IT) UDIT Deadlocks-Galvin sonali C.
What is Deadlock? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Deadlock Example ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
What are we covering? ,[object Object],[object Object],Deadlocks-Galvin sonali C.
SYSTEM MODEL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
DEADLOCK CHARACTERIZATION ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
RESOURCE-ALLOCATION GRAPH ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
RESOURCE-ALLOCATION GRAPH ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT… P i P i R j R j
EXAMPLE OF RESOURCE-ALLOCATION GRAPH Deadlocks-Galvin sonali C. CONT…
RESOURCE-ALLOCATION GRAPH WITH A DEADLOCK ,[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
GRAPH WITH A CYCLE BUT NO DEADLOCK ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
[object Object],[object Object],[object Object],[object Object],RESOURCE-ALLOCATION GRAPH Deadlocks-Galvin sonali C. CONT…
METHODS FOR HANDLING DEADLOCK ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
METHODS FOR HANDLING DEADLOCK ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK PREVENTION ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
DEADLOCK PREVENTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK PREVENTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK PREVENTION ,[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK AVOIDANCE ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
SAFE STATE ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
SAFE STATE ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
SAFE, UNSAFE DEADLOCK STATE ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
SAFE STATE - Example ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
System in UNSAFE STATE ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT… 3
SAFE STATE - DEADLOCK AVOIDANCE ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK AVOIDANCE ALGORITHM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
RESOURCE ALLOCATION GRAPH ALGORITHM ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
RESOURCE ALLOCATION GRAPH ALGORITHM ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
UNSAFE STATE IN RESOURCE ALLOCATIONGRAPH ALGORITHM ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
RESOURCE ALLOCATION GRAPH ALGORITHM ,[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
BANKER’S ALGORITHM -Data structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM - Safety Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM - Resource Allocation Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM - Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM - Example cont… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
BANKER’S ALGORITHM - Example cont…(P1 Request (1,0,2)) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. CONT…
DEADLOCK DETECTION ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Resource-Allocation Graph and Wait-for Graph ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C. Resource-Allocation Graph Corresponding wait-for graph
Several Instances of a Resource Type ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Detection Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
[object Object],[object Object],Deadlocks-Galvin sonali C.
Example of Detection Algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Detection-Algorithm Usage ,[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Recovery from Deadlock: Process Termination ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Recovery from Deadlock: Resource Preemption ,[object Object],[object Object],[object Object],Deadlocks-Galvin sonali C.
Thank You All The Best Deadlocks-Galvin sonali C.

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Operating System Deadlock Galvin

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Editor's Notes

  1. Enumeration:- The act of counting; reciting numbers in ascending order or A numbered list