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Introducing utraceIntroducing utracePosted Mar 8, 2007 22:04 UTC (Thu) by iabervon (subscriber, #722)Parent article: Introducing utrace
It seems to me like this could be useful for situations where the kernel wants to monitor and control tasks internally. I could imagine using it to handle suspend/resume, where the suspend code traces everything else, quieses everything, identifies the threads that need to do work for suspending, and advances those. Likewise, hotplug cpus would probably be a lot simpler if the hotplug code could just take over the entire system and single-step anything in an unsuitable state until it's all consistent.
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