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When this occurs, a special error controller executes the problematic instruction again. Although it rarely happens in practice, it’s possible that this particular instruction will produce an error on the next attempt, too—maybe even on many repeated attempts. To avoid such a deadlock, the controller we’ve designed tries only a handful of times. If the error persists, the controller circuitry cuts the processor’s clock frequency in half during the next attempt to ensure adequate time for the error-free operation of the problematic instruction. The correction process might seem cumberso