A process is indefinitely postponed if it is delayed repeatedly over a long period of time while the attention of the system is given to other processes. I.e., logically the process may proceed but the system never gives it the CPU. Conditions for Deadlock What conditions should exist in ...
操作系统课件Chapter6-Deadlock ModernOperatingSystems Chapter6-Deadlock ZhangYangSpring2013 Contentofthislecture 6.1Resources6.2Deadlock6.3OstrichAlgorithm6.4DeadlockDetection&DeadlockRecovery6.5DeadlockAvoidance6.6DeadlockPrevention6.7OtherIssuesSummary Resources(1) Dead...
(死锁问题) Asetofblockedprocesseseachholdingaresourceandwaitingtoacquirearesourceheldbyanotherprocessintheset.(一组等待的迚程,其中每一个迚程都持有资源,并且等待着由这个组中其他迚程所持有的资源) 死锁Deadlock:计算机系统中多道程序并发执行时,两个戒两个以上的迚程由于竞争资源而造成的一种互相等待的现象(...
os 操作系统 死锁 deadlock KXC254OperatingSystems Week6 Deadlocks SchoolofComputingandInformationSystemsUniversityofTasmania Week6 Deadlock definitionDeadlockconditionsResourceallocationgraphDeadlockpreventionDeadlockavoidanceDeadlockdetectionandrecovery Deadlocks Concepts A computersystemconsist...
Recovery from Deadlock: Resource Preemption Selecting a victim – minimize cost Rollback – return to some safe state, restart process for that state Starvation – same process may always be picked as victim, include number of rollback in cost factor Operating System Concepts ...