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Date:      Thu, 29 Nov 2018 14:48:29 +0700
From:      Eugene Grosbein <eugen@grosbein.net>
To:        =?UTF-8?Q?Gerrit_K=c3=bchn?= <gerrit.kuehn@aei.mpg.de>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: high cpu irq load and slow boot after update from 10.4 to 11.2
Message-ID:  <3f396b97-f2ed-18be-13c9-d21e77fa655a@grosbein.net>
In-Reply-To: <20181129080156.68c839afe96dc57cf5d7d239@aei.mpg.de>
References:  <20181126094648.510fc7f7b773bfdac546d037@aei.mpg.de> <007b9007-6abb-15cf-45df-45b3da814e5d@grosbein.net> <20181126141403.71ff15eb77e55b5e9ce4f79b@aei.mpg.de> <f85f3556-3b73-df7c-2f3e-1a9bbef47777@grosbein.net> <13788_1543243316_5BFC0631_13788_6112_1_20181126153702.478174d84d093394d735b171@aei.mpg.de> <20181129074823.ec70b9a8e039e0cfa378f7ec@aei.mpg.de> <20181129080156.68c839afe96dc57cf5d7d239@aei.mpg.de>

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29.11.2018 14:01, Gerrit Kühn wrote:

> On Thu, 29 Nov 2018 07:48:23 +0100 Gerrit Kühn <gerrit.kuehn@aei.mpg.de>
> wrote about Re: high cpu irq load and slow boot after update from 10.4 to
> 11.2:
> 
>> The issue is back this morning: sys and irq load incredibly high, system
>> hardly usable anymore.
>> I guess it's time to try kern.eventtimer.periodic=1 now... should I do
>> that in addition to the timecounter setting to hpet, or revert that
>> one first?
> 
> Nothing helps, rebooting now to get the system back online.
> Any further ideas on how to debug this?

Fill a PR and include exact output showing IRQs and their count numbers.





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