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Deadlock

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In concurrent computing, deadlock is any situation in which no member of some group of entities can proceed because each waits for another member, including itself, to take action, such as sending a message or, more commonly, releasing a lock. Deadlocks are a common problem in multiprocessing systems, parallel computing, and distributed systems, because in these contexts systems often use software or hardware locks to arbitrate shared resources and implement process synchronization.In an operating system, a deadlock occurs when a process or thread enters a waiting state because a requested system resource is held by another waiting process, which in turn is waiting for another resource held by another waiting process. If a process remains indefinitely unable to change its state because resources requested by it are being used by another process that itself is waiting, then the system is said to be in a deadlock.In a communications system, deadlocks occur mainly due to loss or corruption of signals rather than contention for resources.

Deadlock - Wikipedia Jump to content From Wikipedia, the free encyclopedia Look up deadlock or deadlocked in Wiktionary, the free dictionary. Deadlock commonly refers to: Deadlock (computer science) , a situation where two or more processes are each waiting for the other to take action Deadlock (locksmithing) or deadbolt, a physical door locking mechanism Political deadlock or gridlock, a situation of difficulty passing laws that satisfy the needs of the people Negotiation deadlock or an impasse, a situation where two sides bargaining can't reach an agreement Tie (draw) , in competitive sports

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