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SubjectRe: Experiencing freezes with kernel 4.16.3 on a desktop with E5500 CPU (bisect included)
On Mon, Apr 23, 2018 at 05:58:01PM +0200, Peter Zijlstra wrote:
> Thomas, we could not find the de-rate stuff, but the above can be
> simplified; what happens is:
>
> cs->flags |= UNSTABLE;
> schedule_work(&watchdog_work)
> kthread_run(clocksource_watchdog_kthread)

Also, Thomas, do you remember why we spawn a short running kthread from
a work ? Can't we simply run the whole thing from the worker thread?

> __clocksource_watchdog_kthread()
> if (cs->flags & UNSTABLE)
> __clocksource_change_rating()
> clocksource_select()
>

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