What are the conditions of Deadlock? How it can be avoided?

Question

Accepted Answer

Deadlock occurs when two or more processes are blocked, waiting for each other to release resources.

Conditions for deadlock are mutual exclusion, hold and wait, no preemption, and circular wait.
Deadlock can be avoided by using techniques such as resource allocation graph, banker's algorithm, and deadlock detection and recovery.
Resource allocation graph is a directed graph that shows the allocation and request of resources by processes.
Banker's algorithm is a resource allocation and deadlock avoidance algorithm that ensures that the system will never enter an unsafe state.
Deadlock detection and recovery involves periodically checking the system for deadlock and taking corrective actions such as killing processes or releasing resources.
Examples of resources that can cause deadlock are printers, disk drives, and memory.
To avoid deadlock, it is important to design systems that minimize the use of shared resources and ensure that resources are released in a timely manner.

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