Question: A CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through the disk-service routine, another I/O interrupt occurs. a.

A CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through the disk-service routine, another I/O interrupt occurs.

a. What happens next?

b. Is it a problem?

c. If not, why not? If so, what can be done about it?

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a When another IO interrupt occurs while the CPU is midway through the diskservice routine the CPU will typically finish the current instruction or a ... View full answer

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