On Mon, 2010-01-04 at 04:36 -0800, Arjan van de Ven wrote: > > cause is that it is default to enable high resolution timer which > > will force to oneshot broadcast mode. > > using local apic in one shot mode is not a problem, I'd in fact call it > a feature... lapic yes, broadcast not so much. He mentioned he was using Nehelem-EX which is known broken in that it stops the lapic in deeper C states and thus reverts to HPET broadcast since there's not enough HPET timers to go around. Something like processor.max_cstate=2 should fix that IIRC. Jens ran into this on his shiny new box. Disabling nohz is funny indeed, one wonders why he does that. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html