Conditions for Deadlock

• The following policy conditions must be present for a deadlock to be possible:

  • 1. Mutual Exclusion:
    • Only one process at a time can use a resource.
  • 2. Hold and Wait:
    • A process may hold allocated resources while awaiting assignment of other resources.
  • 3. No Preemption:
    • A resource can be released only voluntarily by the process holding it (no forced release).

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