Re: [PATCH] Dynamic tick, version 050127-1

[Pavel Machek <pavel@suse.cz>]

Hi!

> > > > I used your config advices from second mail, still it does not work as
> > > > expected: system gets "too sleepy". Like it takes a nap during boot
> > > > after "dyn-tick: Maximum ticks to skip limited to 1339", and key is
> > > > needed to make it continue boot. Then cursor stops blinking and
> > > > machine is hung at random intervals during use, key is enough to awake
> > > > it.
> > > 
> > > Hmmm, that sounds like the local APIC does not wake up the PIT
> > > interrupt properly after sleep. Hitting the keys causes the timer
> > > interrupt to get called, and that explains why it keeps running. But
> > > the timer ticks are not happening as they should for some reason.
> > > This should not happen (tm)...
> > 
> > :-). Any ideas how to debug it? Previous version of patch seemed to work better...
> 
> I don't think it's HPET timer, or CONFIG_SMP. It also looks like your
> local APIC timer is working.

I turned off CONFIG_PREEMPT, but nothing changed :-(.
									Pavel
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