On Fri, Aug 12, 2016 at 09:23:13AM -0500, Christoph Lameter wrote: > On Thu, 11 Aug 2016, Paul E. McKenney wrote: > > > Heh! The only really good idea is for clocks to be reliably in sync. > > > > But if they go out of sync, what do you want to do instead? > > For a NOHZ task? Write a message to the syslog and reenable tick.
Indeed, a strong clocksource is a requirement for a full tickless machine.