Unverified50% confidenceFactExact time
Collision avoidance alone cannot eliminate the deadlock problem—a system can prevent physical collisions yet still permit inefficient waiting patterns or deadlock.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedDeadlock requires four necessary conditions (Coffman conditions) to be simultaneously satisfied: mutual exclusion, hold and wait, no preemption, and circular wait — breaking any one of them can prevent deadlock75% similarUnverifiedDeadlock refers to a state in which a group of vehicles or resources falls into circular waiting and none of them can make further progress.71% similarUnverifiedThe fail-closed principle requires that a system default to blocking rather than defaulting to allowing when it fails, and in security engineering the former is almost always recommended.70% similar
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