Re: (fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )

[Yioryos Asprobounitis]

--- On Sun, 3/28/10, Paul Fox  wrote:
> From: Paul Fox 
> Subject: Re: (fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )
> To: "Yioryos Asprobounitis" 
> Cc: "OLPC Devel" , "fedora-olpc-list" 
> Date: Sunday, March 28, 2010, 11:40 AM
> yioryos wrote:
> > So SLEEP basically drops connections and then the
>
> XO-1 fails
> > to DIM or BLANK.  Setting SLEEP time _after_ DIM
>
> and BLANK has
>
> sounds like something's going wrong for you that isn't
> going wrong
> for me:  dim and blank happen correctly after sleep
> for me.
> > the expected behavior.  In all cases the XO
>
> fails to reconnect
> > to the preferred network after wakeup from
>
> SLEEP.  I settled
>
> i haven't tested networking robustness on os13, so can't
> speak to
> this.
>
> please file tickets for the problems you're seeing, and
> attach
> dmesg output, as well as powerd.trace.  (enable powerd
> tracing
> with "sudo powerd-config =trace-on".)

Well, my predicament with powerd and a proper ticket filling is that I can get no logs. So I'll describe the story instead ...:-)

Test settings SLEEP=15 DIM=30 BLANK=45 running on battery. os13 (clean). XO-1 CL1 Firmware q2e42d(not overclocked, no SDcard or anything attached to it)

Without trace-on the XO will sleep and will _not_ dim or blank. On slight touchpad touch after the timeouts (or spontaneous if you let it long enough) will wake to dim and then blank. Power button wakes it up fine but no trace log.

With trace-on, same behavior but on slight touch of the touchpad (or spontaneously) will wake to dim and freeze there. After hard reboot no trace log either :( and no I do not have a serial port adapter) 
It's a clue though (I hope)

If while at sleep, pass dim or blank time points, you wake it up by typing or rubbing the touchpad constantly, will wake, dim and then recover to normal operation. This is where the attached powerd.trace is coming from.

It would appear that the kernel configuration is also relevant. With the os13 kernel I also got a freeze without the trace-on (1 in 5 tests). With the 2010322 kernel never (in 6 tests). Using one of my kernels patched for Aufs and with hfsplus, sisusbvga modules and in-kernel loop enabled, I can not get it to sleep unless both DIM and BLANK are before SLEEP time (I could provide config diffs and trace logs if you think it may help the issue at hand)
> paul
> > in DIM=180, BLANK=480, SLEEP=600.  No huge power
>
> savings but
> > at least the build is usable.
> >
> > --- On Sat, 3/27/10, Paul Fox
>
> wrote:
> > > From: Paul Fox 
> > > Subject: Re: (fwd) Re: powerd on XO-1 (was Re:
>
> New release ... OS13 )
> > > To: "Yioryos Asprobounitis" 
> > > Cc: "OLPC Devel" ,
>
> "fedora-olpc-list"
> > > Date: Saturday, March 27, 2010, 1:26 PM
> > > yioryos wrote:
> > >   > I guess the question is: is os13
>
> usable at this
> > > stage?
> > >   > Should power management be be
>
> inactivated in the
> > > control panel?
> > >   > Are there appropriate/recommended
>
> powerd.conf
> > > settings for the XO-1 at this 
> > >   > stage?
> > >
> > > maybe, i don't know, and i don't know.
> > > paul
> > >
> > > paul fox, [e-mail]
>
> =---------------------
>  paul fox, [e-mail]

(fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )

[Paul Fox]

hi yioryos --

thanks for the detailed descriptions.

debugging and drawing conclusions about suspend/resume
problems is pretty hard without a serial connection.  i'll
try and stress an OS13 a little more, and see if i can't
reproduce your symptoms.  others with serial ports are
welcome/encouraged to try as well.  ;-)

paul

yioryos wrote:
> Well, my predicament with powerd and a proper ticket filling
> is that I can get no logs.  So I'll describe the story instead
> ...:-)
>
> Test settings SLEEP=15 DIM=30 BLANK=45 running on battery. 
> os13 (clean).  XO-1 CL1 Firmware q2e42d(not overclocked, no
> SDcard or anything attached to it)
>
> Without trace-on the XO will sleep and will _not_ dim or
> blank.  On slight touchpad touch after the timeouts (or
> spontaneous if you let it long enough) will wake to dim and
> then blank.  Power button wakes it up fine but no trace log.

okay -- this is definitely a kernel issue then.  i think i thought
we'd gotten past all the bad ones, but i guess not.
> With trace-on, same behavior but on slight touch of the
> touchpad (or spontaneously) will wake to dim and freeze there. 
> After hard reboot no trace log either :( and no I do not have
> a serial port adapter) It's a clue though (I hope)

hard freezes are certainly harder to diagnose.
> If while at sleep, pass dim or blank time points, you wake it
> up by typing or rubbing the touchpad constantly, will wake,
> dim and then recover to normal operation.  This is where the
> attached powerd.trace is coming from.
>
> It would appear that the kernel configuration is also
> relevant.  With the os13 kernel I also got a freeze without
> the trace-on (1 in 5 tests).  With the 2010322 kernel never
> (in 6 tests).  Using one of my kernels patched for Aufs and
> with hfsplus, sisusbvga modules and in-kernel loop enabled, I
> can not get it to sleep unless both DIM and BLANK are before
> SLEEP time (I could provide config diffs and trace logs if you
> think it may help the issue at hand)
> > paul
> > > in DIM=180, BLANK=480, SLEEP=600.  No huge power
> >
> > savings but
> > > at least the build is usable.
> > >
> > > --- On Sat, 3/27/10, Paul Fox
> >
> > wrote:
> > > > From: Paul Fox 
> > > > Subject: Re: (fwd) Re: powerd on XO-1 (was Re:
> >
> > New release ... OS13 )
> > > > To: "Yioryos Asprobounitis" 
> > > > Cc: "OLPC Devel" ,
> >
> > "fedora-olpc-list"
> > > > Date: Saturday, March 27, 2010, 1:26 PM
> > > > yioryos wrote:
> > > > > I guess the question is: is os13
> >
> > usable at this
> > > > stage?
> > > > > Should power management be be
> >
> > inactivated in the
> > > > control panel?
> > > > > Are there appropriate/recommended
> >
> > powerd.conf
> > > > settings for the XO-1 at this
> > > > > stage?
> > > >
> > > > maybe, i don't know, and i don't know.
> > > > paul
> > > >
> > > > paul fox, [e-mail]
> >
> > =---------------------
> >  paul fox, [e-mail]

=---------------------
 paul fox, [e-mail]

(fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )

[Yioryos Asprobounitis]

Ok.
Also to point out that when it goes to sleep, regardless of dim or blank, will drop the wifi connections. However, getting out of sleep will eventually (in about a minute) reconnect.
So SLEPP is equivalent to suspend, disregarding DCON/screen state.

--- On Mon, 3/29/10, Paul Fox  wrote:
> From: Paul Fox 
> Subject: Re: (fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )
> To: "Yioryos Asprobounitis" 
> Cc: "OLPC Devel" , "fedora-olpc-list" 
> Date: Monday, March 29, 2010, 4:43 PM
> hi yioryos --
>
> thanks for the detailed descriptions.
>
> debugging and drawing conclusions about suspend/resume
> problems is pretty hard without a serial connection. 
> i'll
> try and stress an OS13 a little more, and see if i can't
> reproduce your symptoms.  others with serial ports
> are
> welcome/encouraged to try as well.  ;-)
>
> paul
>
> yioryos wrote:
> > Well, my predicament with powerd and a proper ticket
>
> filling
> > is that I can get no logs.  So I'll describe the
>
> story instead
> > ...:-)
> >
> > Test settings SLEEP=15 DIM=30 BLANK=45 running on
>
> battery.
> > os13 (clean).  XO-1 CL1 Firmware q2e42d(not
>
> overclocked, no
> > SDcard or anything attached to it)
> >
> > Without trace-on the XO will sleep and will _not_ dim
>
> or
> > blank.  On slight touchpad touch after the
>
> timeouts (or
> > spontaneous if you let it long enough) will wake to
>
> dim and
> > then blank.  Power button wakes it up fine but
>
> no trace log.
>
> okay -- this is definitely a kernel issue then.  i
> think i thought
> we'd gotten past all the bad ones, but i guess not.
> > With trace-on, same behavior but on slight touch of
>
> the
> > touchpad (or spontaneously) will wake to dim and
>
> freeze there.
> > After hard reboot no trace log either :( and no I do
>
> not have
> > a serial port adapter) It's a clue though (I hope)
>
> hard freezes are certainly harder to diagnose.
> > If while at sleep, pass dim or blank time points, you
>
> wake it
> > up by typing or rubbing the touchpad constantly, will
>
> wake,
> > dim and then recover to normal operation.  This
>
> is where the
> > attached powerd.trace is coming from.
> >
> > It would appear that the kernel configuration is
>
> also
> > relevant.  With the os13 kernel I also got a
>
> freeze without
> > the trace-on (1 in 5 tests).  With the 2010322
>
> kernel never
> > (in 6 tests).  Using one of my kernels patched
>
> for Aufs and
> > with hfsplus, sisusbvga modules and in-kernel loop
>
> enabled, I
> > can not get it to sleep unless both DIM and BLANK are
>
> before
> > SLEEP time (I could provide config diffs and trace
>
> logs if you
> > think it may help the issue at hand)
> > > paul
> > >
> > > > in DIM=180, BLANK=480,
>
> SLEEP=600.  No huge power
> > > savings but
> > >   > at least the build is usable.
> > >   >   
> > >   > 
> > >   > --- On Sat, 3/27/10, Paul Fox 
> > > wrote:
> > >   > 
> > >   > > From: Paul Fox 
> > >   > > Subject: Re: (fwd) Re: powerd on
>
> XO-1 (was Re:
> > > New release ... OS13 )
> > >   > > To: "Yioryos Asprobounitis"
>
> > > > > Cc: "OLPC Devel" ,
> > > "fedora-olpc-list" 
> > >   > 
> > >   > > Date: Saturday, March 27, 2010,
>
> 1:26 PM
> > > > > yioryos wrote:
> > >   > >  > I guess the question
>
> is: is os13
> > > usable at this
> > >   > > stage?
> > >   > >  > Should power
>
> management be be
> > > inactivated in the
> > >   > > control panel?
> > >   > >  > Are there
>
> appropriate/recommended
> > > powerd.conf
> > >   > > settings for the XO-1 at this 
> > >   > >  > stage?
> > >   > > 
> > >   > > maybe, i don't know, and i don't
>
> know.
> > > > > 
> > >   > > paul
> > >   > > =---------------------
> > >   > >  paul fox, [e-mail]
> > >   > > 
> > >   > 
> > >   > 
> > >   >
> > >
> > > =---------------------
> > >   paul fox, [e-mail]
>
> =---------------------
>  paul fox, [e-mail]