Re: NO_HZ: timer interrupt stuck [Re: Linux 2.6.21-rc1]

From: Andreas Mohr
Date: Thu Feb 22 2007 - 16:26:08 EST


On Thu, Feb 22, 2007 at 10:07:19PM +0100, Pierre Ossman wrote:
> Arjan van de Ven wrote:
> > no; c3 saves a TON more power.
> >
> > you can try enabling HPET in your BIOS...
> >
> >
> Hah, I wish! This is a laptop, so the BIOS is as brain dead and broken
> as is humanly possible.
> Can I determine if I have the required hardware? So I can tell if I'm
> permanently screwed, or just temporarily.

and related posts in this older thread
("CONFIG_NO_HZ: missed ticks, stall (keyb IRQ required) [2.6.18-rc4-mm1]")
should help.

Andreas Mohr
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