Re: [PATCH 1/3] Updated dynamic tick patches - Fix losttick calculation in timer_pm.c

From: Lee Revell
Date: Sat Sep 03 2005 - 00:30:45 EST


On Sat, 2005-09-03 at 01:15 -0400, Parag Warudkar wrote:
> Lee Revell wrote:
>
> > Are lost ticks really that common? If so, any idea what's disabling
> >
> >interrupts for so long (or if it's a hardware issue)? And if not, it
> >seems like you'd need an artificial way to simulate lost ticks in order
> >to test this stuff.
> >
> >Lee
> >
> >
> Yes - I know many people with laptops who have this lost ticks problem.
> So no simulation and/or
> special efforts required. If anyone wants a test bed - my laptop is the
> perfect instrument.
>
> In my case the rip is always as acpi_processor_idle now a days. Earlier
> it used to be at acpi_ec_read.

Ah, OK, I forgot about SMM traps.

Lee

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