high cpu irq load and slow boot after update from 10.4 to 11.2

[Gerrit Kühn]

On Thu, 29 Nov 2018 07:48:23 +0100 Gerrit Kühn <gerrit.kuehn at 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?


cu
  Gerrit