Description: When a driver to call the bottom of the IoCompleteRequest () function, basically all equipment related to IRP stack processing is completed in it there. Including the IRP-> Flags to determine the number of signs on the APC handling error MULTIPLE_IRP_COMPLETE_REQUESTS out. Extension of equipment when it is driven by the call stack has been installed CompleteRoutine, if found STATUS_MORE_PROCESSING_REQUIRED logo, it will cease to continue to roll back up. That is why in CompleteRoutine can use the logo of the reasons for the suspension IRP.
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