When an interrupt is serviced in Linux or root domain, it is regarded as a non real time interrupt and the pipe line stage of root domain is stalled, so if another real time interrupt happnes at the same time, it will be logged for root domain and will be delayed, I mean there is an unpredictable interrupt lateny for real time interrupts. I wonder if any professional can explain more about this and if the above statement is correct. I appreciate much in advance
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