警告當sVC _REQ#43起作用時，備份單元還繼續(xù)執(zhí)行控制，當錯誤發(fā)生和切換控制的單元時可以繼續(xù)接管系統(tǒng)。這時如果切換發(fā)生，可能會發(fā)生輸出突變的情況，因為兩個單元可能產(chǎn)生不同的輸出結果。設想當SVC_REQ#43起作用時停止備份單元的輸出。

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