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SubjectRe: [PATCH v2 0/3] Freezer, CPU hotplug, x86 Microcode: Fix task freezing failures

> > > The seems like entirely the wrong way to go about solving this problem.
> > >
> > > The kernel shouldn't be responsible for making hotplug stress tests
> > > exclusive with system sleep. Whoever is running those tests should be
> > > smart enough to realize what's wrong if system sleep interferes with a
> > > test.
> Yes, agreed. And more: I'm still trying to understand why a test case
> like that is relevant and needs to be fixed at all. Let me re-formulate
> the question: what real world scenario(s) does the case of hibernating
> _while_ off- and onlining cores cover? Or are you simply doing kernel
> resiliency testing and thought that offlining cores while hibernating
> might make sense?

Some people want to do hibernate on battery low / UPS fail. That can
happen any time...

(cesky, pictures)

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