Methods for Handling Deadlock

Methods for Handling Deadlocks
• Use a protocol to prevent or avoid deadlocks, ensuring that the system will never enter a deadlock state
– Deadlock prevention
– Deadlock avoidance
• Allow the system to enter a deadlock state, detect it and then recover
• Ignore the problem and pretend that deadlocks never occur in the system
– Used by most operating systems, including UNIX
– The undetected deadlock will result in the deterioration of the system performance. Eventually, the system will stop functioning and will need to be restarted manually