[2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Jan De Luyck]

Hello,

I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it 
actually makes a noticeable difference on my laptop's battery life. I don't 
have hard numbers, lets just say that instead of the usual ~3 hours i get out 
of it, i was ~4 before it started nagging, usual use pattern at work.

The only gripe I have with it that it stops S3 from working. If the patch is 
compiled in the kernel, it makes S3 suspend correctly, but resuming goes into 
a solid hang (nothing get's it back alive, have to keep the powerbutton for 
~5 secs to shutdown the system)

Anything I could test? The logs don't give anything useful..

Thanks,

Jan
-- 
Yow!  I'm having a quadrophonic sensation of two winos alone in a steel mill!

Re: [2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Christian Hesse]

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On Saturday 23 July 2005 14:35, Jan De Luyck wrote:
> Hello,
>
> I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it
> actually makes a noticeable difference on my laptop's battery life. I don't
> have hard numbers, lets just say that instead of the usual ~3 hours i get
> out of it, i was ~4 before it started nagging, usual use pattern at work.
>
> The only gripe I have with it that it stops S3 from working. If the patch
> is compiled in the kernel, it makes S3 suspend correctly, but resuming goes
> into a solid hang (nothing get's it back alive, have to keep the
> powerbutton for ~5 secs to shutdown the system)
>
> Anything I could test? The logs don't give anything useful..

I reported this some time ago [1], but there's no sulution so far...

[1] http://groups.google.com/groups?selm=4b4NI-7mJ-9%40gated-at.bofh.it

-- 
Christian

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Re: [2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Pavel Machek]

Hi!

> > I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it
> > actually makes a noticeable difference on my laptop's battery life. I don't
> > have hard numbers, lets just say that instead of the usual ~3 hours i get
> > out of it, i was ~4 before it started nagging, usual use pattern at work.
> >
> > The only gripe I have with it that it stops S3 from working. If the patch
> > is compiled in the kernel, it makes S3 suspend correctly, but resuming goes
> > into a solid hang (nothing get's it back alive, have to keep the
> > powerbutton for ~5 secs to shutdown the system)
> >
> > Anything I could test? The logs don't give anything useful..
> 
> I reported this some time ago [1], but there's no sulution so far...
> 
> [1] http://groups.google.com/groups?selm=4b4NI-7mJ-9%40gated-at.bofh.it

Does it also break if swsusp? Does it break if you replace enter sleep
function with some kind of dummy functions? (Or perhaps S1 is enough
for this test?)
								Pavel
-- 
teflon -- maybe it is a trademark, but it should not be.

Re: [2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Jan De Luyck]

On Sunday 24 July 2005 16:23, Pavel Machek wrote:
> Hi!
>
> > > I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it
> > > actually makes a noticeable difference on my laptop's battery life. I
> > > don't have hard numbers, lets just say that instead of the usual ~3
> > > hours i get out of it, i was ~4 before it started nagging, usual use
> > > pattern at work.
> > >
> > > The only gripe I have with it that it stops S3 from working. If the
> > > patch is compiled in the kernel, it makes S3 suspend correctly, but
> > > resuming goes into a solid hang (nothing get's it back alive, have to
> > > keep the powerbutton for ~5 secs to shutdown the system)
> > >
> > > Anything I could test? The logs don't give anything useful..
> >
> > I reported this some time ago [1], but there's no sulution so far...
> >
> > [1] http://groups.google.com/groups?selm=4b4NI-7mJ-9%40gated-at.bofh.it
>
> Does it also break if swsusp? Does it break if you replace enter sleep
> function with some kind of dummy functions? (Or perhaps S1 is enough
> for this test?)

I have only tried with S3.. how do I test with S1?

Jan

-- 
YOW!!  I'm in a very clever and adorable INSANE ASYLUM!!

Re: [2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Tony Lindgren]

* Christian Hesse <mail@earthworm.de> [050723 05:51]:
> On Saturday 23 July 2005 14:35, Jan De Luyck wrote:
> > Hello,
> >
> > I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it
> > actually makes a noticeable difference on my laptop's battery life. I don't
> > have hard numbers, lets just say that instead of the usual ~3 hours i get
> > out of it, i was ~4 before it started nagging, usual use pattern at work.
> >
> > The only gripe I have with it that it stops S3 from working. If the patch
> > is compiled in the kernel, it makes S3 suspend correctly, but resuming goes
> > into a solid hang (nothing get's it back alive, have to keep the
> > powerbutton for ~5 secs to shutdown the system)
> >
> > Anything I could test? The logs don't give anything useful..
> 
> I reported this some time ago [1], but there's no sulution so far...
> 
> [1] http://groups.google.com/groups?selm=4b4NI-7mJ-9%40gated-at.bofh.it

In theory it should not happen... And it's working on my laptop for resume
just fine with dyntick on. Can you try it without APIC support? Maybe
that's the differerence again. (I don't have APIC on my laptop)

Also a workaround is to disable dyntick before suspend with:

# echo 0 > /sys/devices/system/timer/timer0/dyn_tick_state

and then enable it again after resume.

Tony

Re: [2.6.12.3] dyntick 050610-1 breaks makes S3 suspend

[Christian Hesse]

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On Monday 25 July 2005 12:27, Tony Lindgren wrote:
> * Christian Hesse <mail@earthworm.de> [050723 05:51]:
> > On Saturday 23 July 2005 14:35, Jan De Luyck wrote:
> > > Hello,
> > >
> > > I recently tried out dyntick 050610-1 against 2.6.12.3, works great, it
> > > actually makes a noticeable difference on my laptop's battery life. I
> > > don't have hard numbers, lets just say that instead of the usual ~3
> > > hours i get out of it, i was ~4 before it started nagging, usual use
> > > pattern at work.
> > >
> > > The only gripe I have with it that it stops S3 from working. If the
> > > patch is compiled in the kernel, it makes S3 suspend correctly, but
> > > resuming goes into a solid hang (nothing get's it back alive, have to
> > > keep the powerbutton for ~5 secs to shutdown the system)
> > >
> > > Anything I could test? The logs don't give anything useful..
> >
> > I reported this some time ago [1], but there's no sulution so far...
> >
> > [1] http://groups.google.com/groups?selm=4b4NI-7mJ-9%40gated-at.bofh.it
>
> In theory it should not happen... And it's working on my laptop for resume
> just fine with dyntick on. Can you try it without APIC support? Maybe
> that's the differerence again. (I don't have APIC on my laptop)

root@logo:~# zcat /proc/config.gz | grep APIC
CONFIG_X86_GOOD_APIC=y
# CONFIG_X86_UP_APIC is not set

Only the second one can be changed in make (menu)config. So I think this is 
what you have?

> Also a workaround is to disable dyntick before suspend with:
>
> # echo 0 > /sys/devices/system/timer/timer0/dyn_tick_state
>
> and then enable it again after resume.

IIRC, this didn't work, system hangs at resume as well. Will try again if 
you've released an updated version.

-- 
Christian

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