Messages in this thread | | | Date | Sat, 24 Oct 2015 18:58:18 +0900 (KST) | From | Thomas Gleixner <> | Subject | Re: Problem about CPU stalling in hrtimer_intterrupts() |
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On Thu, 22 Oct 2015, Yang Yingliang wrote:
> But I found out when the cpu is stalling, basenow.tv64(7676664221321) is > bigger than ktime_get().tv64(7336008904750) in hrtimer_interrupt() and > the timer->_softexpires is 7336288000000. This makes it can not finish > the while loop until ktime_get().tv64 arrives basenow.tv64. > > Is it correct that basenow bigger than ktime_get() ?
You only can compare basenow and ktime_get() for the clock monotonic base. If you are actually observing this on clock monotonic base then base->offset of clock monotonic is not 0, which should never happen.
Thanks,
tglx
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