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    Question :
    How shared memory are accessed if we have two processors
    Category IPC Interview Questions
    Rating (0.4) By 795 users
    Added on 5/16/2009
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    When a memory is shared by more than one process, it must be protected from simultanious access from many process, This is called sycronization.In Linux there are many sycronization techniques such as sephores,spinlocks, per-cpu , mutex, seqlocks,atomic variables,rcu etc.

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