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DEADLOCK
Deadlock is a situation where a set of processes are blocked because each
process is holding a resource and waiting for another resource acquired by
some other process.
WHAT IS A DEADLOCK?
 Multiprogramming Environment
 Multiple Processes in waiting state for an unspecified period
 Caused by only one of the waiting processes
 Soft lock/Software
 Handling/Avoiding Deadlock
EXAMPLE OF DEADLOCK
Real World Example
Traffic in one direction
Bridge as a resource
Handling Deadlock
CHARACTERIZATION
Mutual Exclusion
Hold and Wait
No Pre-emption
Circular Wait
• SEQUENCE
Request
Use
Release
• DETECTION
• PREVENTION
ADVANTAGES &
DISADVANTAGES
DEADLOCK_.pptx

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DEADLOCK_.pptx