Transcription of Practice Exercises
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Practice Exercises
Practice Exercises307 Practice List three examples of deadlocks that are not related to a computer-system Suppose that a system is in an unsafe state. Show that it is possible forthe processes to complete their execution without entering a A possible method for preventing deadlocks is to have a single, higher-order resource that must be requested before any other resource. Forexample, if multiple threads attempt to access the synchronizationobjects A E, deadlock is possible. (Such synchronization objects mayinclude mutexes, semaphores, condition variables, and the like.)
share code and data among different users. Sharing generally requires that either paging or segmentation be used to provide small packets of information (pages or segments) that can be shared. Sharing is a means of running many processes with a limited amount of memory, but shared programs and data must be designed carefully. • Protection.
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