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Number of processes and the number and kind of resources possessed and requestedĪre unimportant. None of them can release any resources, and none of them can be awakened.
Resource that is owned by a deadlocked process. Other words, each member of the set of deadlocked processes is waiting for a Release of some resource currently possessed by another member of the set. In most cases, the event that each process is waiting for is the The no-interrupts condition is needed to prevent an otherwiseĭeadlocked process from being awakened by, say, an alarm, and then causingĮvents that release other processes in the set. Have only a single thread and that there are no interrupts possible to wake up aīlocked process. The events that could wake up any of the other members of the set, and all the Deadlock can be defined formally as follows:Ī set of processes is deadlocked if each process in the set is waiting forĪn event that only another process in the set can cause.īecause all the processes are waiting, none of them will ever cause any of