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deadlock comparison table

Subject	is a kind of	have example	hang	has definition	appear as	have example in real life
deadlock or livelock	failure	the production of incorrect outputs, the system running too slowly, or the user having trouble finding online help
deadlock	deadlock or livelock	thread A is waiting to access object O object O is locked by thread B thread B, however might be waiting to access object P object P is locked by thread A Neither thread can ever progress unless some outside thread forces a break in the deadlock	a system	A failure in which two or more threads are stopped, waiting for each other to do something	a hung system where the system is not consuming CPU time	gridlock

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