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2. Deadlock (computer science) - Wikipedia

   en.wikipedia.org/wiki/Deadlock_(computer_science)

   Most current operating systems cannot prevent deadlocks. [11] When a deadlock occurs, different operating systems respond to them in different non-standard manners. Most approaches work by preventing one of the four Coffman conditions from occurring, especially the fourth one. [12] Major approaches are as follows.

3. Deadlock prevention algorithms - Wikipedia

   en.wikipedia.org/wiki/Deadlock_prevention_algorithms

   Distributed deadlocks can be detected either by constructing a global wait-for graph, from local wait-for graphs at a deadlock detector or by a distributed algorithm like edge chasing. Phantom deadlocks are deadlocks that are detected in a distributed system due to system internal delays but no longer actually exist at the time of detection.

4. Lock (computer science) - Wikipedia

   en.wikipedia.org/wiki/Lock_(computer_science)

   Careless use of locks can result in deadlock or livelock. A number of strategies can be used to avoid or recover from deadlocks or livelocks, both at design-time and at run-time. (The most common strategy is to standardize the lock acquisition sequences so that combinations of inter-dependent locks are always acquired in a specifically defined ...

5. Deadlock - Wikipedia

   en.wikipedia.org/wiki/Deadlock

   Deadlock commonly refers to: Deadlock (locksmithing) or deadbolt, a physical door locking mechanism; Deadlock (computer science), a situation where two processes are each waiting for the other to finish; Political deadlock or gridlock, a situation of difficulty passing laws that satisfy the needs of the people

6. Wait-for graph - Wikipedia

   en.wikipedia.org/wiki/Wait-For_Graph

   A wait-for graph in computer science is a directed graph used for deadlock detection in operating systems and relational database systems.. In computer science, a system that allows concurrent operation of multiple processes and locking of resources and which does not provide mechanisms to avoid or prevent deadlock must support a mechanism to detect deadlocks and an algorithm for recovering ...

7. Deadbolt - Wikipedia

   en.wikipedia.org/wiki/Deadbolt

   A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [ 1 ] It is distinct from a spring bolt lock because a deadbolt can only be opened by a key or handle.

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9. Ostrich algorithm - Wikipedia

   en.wikipedia.org/wiki/Ostrich_algorithm

   The UNIX and Windows operating systems take this approach. [1] [2] Although using the ostrich algorithm is one of the methods of dealing with deadlocks, other effective methods exist such as dynamic avoidance, banker's algorithm, detection and recovery, and prevention. [3]