In view of the fact that processes frequently need to communicate with other processes therefore, there is require for a well-structured interaction, devoid of using interrupts, among processes.

Race Conditions occurs
In operating systems, processes that are working in concert share some common storage (main memory, file etc.) that every process can read and write. When two or more processes are reading or writing some common data and the final result depends on who runs accurately when, are called race conditions. At the same time as executing threads that share data need to synchronize their operations and processing with the intention of avoid race condition on shared data. Only one ‘customer’ thread at a time should be permitted to examine and update the shared changeable.
Race conditions are also achievable in Operating Systems. If the ready queue is implemented as a linked list and if the ready queue is being manipulated during the treatment of an interrupt, then interrupts must be disabled to prevent a different interrupt before the first one completes. If interrupts are not immobilized than the linked list could become corrupt.

Posted Date: 5/2/2012 9:00:25 AM | Location : United States

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