Process Management (computing) - Process Termination

Process Termination

There are many reasons for process termination:

• Batch job issues halt instruction
• User logs off
• Process executes a service request to terminate
• Error and fault conditions
• Normal completion
• Time limit exceeded
• Memory unavailable
• Bounds violation; for example: attempted access of (non-existent) 11th element of a 10-element array
• Protection error; for example: attempted write to read-only file
• Arithmetic error; for example: attempted division by zero
• Time overrun; for example: process waited longer than a specified maximum for an event
• I/O failure
• Invalid instruction; for example: when a process tries to execute data (text)
• Privileged instruction
• Data misuse
• Operating system intervention; for example: to resolve a deadlock
• Parent terminates so child processes terminate (cascading termination)
• Parent request
• Fatal error