[Sugar-devel] Wanting to know a bit of (NetworkManager) workflow upon resume-from-suspend

Ajay Garg ajay at activitycentral.com
Thu May 10 13:23:24 EDT 2012 

Hi all.

(Unfortunately) A new use-case has come into effect ::


If I boot with "/security/develop.sig" folder in my pendrive,

a)
mesh-icons are observed in neighborhood-view, both during reboot and
resume-from-suspend.

b)
"/var/log/messages" show the loading of "msh0". However, there are no
exceptions/crash-traces therein.

c)
Also, I see the presence of a folder "/sys/class/net/msh0".




However, if there is no "security/develop.sig" file in my pendrive,

a)
No mesh-icons are seen in neighborhood-view, during reboot or
resume-from-suspend (as expected).

b)
"/var/log/messages" has no mention of "msh0" (as expected).

c)
There is no folder "/sys/class/net/msh0" (i guess that is what is expected).




Is my observation in line with anyone's observation on olpc/sugar?
(Note that the issue was reported by UY deployment; and it could be
reproduced at our end as well).



Kindly reply with comments.



Thanks and Regards,
Ajay





On Sat, May 5, 2012 at 11:27 PM, Ajay Garg <ajaygargnsit at gmail.com> wrote:

> Hi Kevin.
>
> Following are the steps and observations ::
>
> a)
> Booted with mesh-disabled (via "options libertas libertas_disablemesh=1").
>
> b)
> In Neighborhood-View, "wifi" and three "adhoc" network icons were present.
>
> c)
> Then, I turned wifi-radio off, discarded network history. Now, only
> three "adhoc" network icons were present in Neighborhood-View.
>
> d)
> After some time, turned wifi-radio on. Now, "wifi" and three "adhoc"
> network icons could be seen.
>
> e)
> Again, I turned wifi-radio off, discarded network history. Again, only
> three "adhoc" network icons could be seen in Neighborhood-View.
>
> f)
> Rebooted.
>
> g)
> Only three "adhoc" network icons were seen in Neighborhood-View.
>
> h)
> After some time, turned wifi-radio on. Now, "wifi" and three "adhoc"
> network icons could be seen in Neighborhood-View.
>
>
> So, it works fine I guess (note that, mesh-icons were NOT seen anytime
> in the above steps) :)
>
>
> Regards,
> Ajay
>
> On Sat, May 5, 2012 at 6:43 PM, Kevin Gordon <kgordon420 at gmail.com> wrote:
> >
> >
> > On Sat, May 5, 2012 at 6:26 AM, Ajay Garg <ajaygargnsit at gmail.com>
> wrote:
> >>
> >> Well,
> >>
> >> I tried once again the "Case 2"; and upon resume-from-suspend, the
> >> icons appeared fine at my end.
> >>
> >> So, the problem was at my end.
> >> So, it seems that nothing needs to be done right now.
> >>
> >> If I face the unusual result for "Case 2" again, I will post the
> >> "/var/log/messages", which may be scrutinized.
> >> If someone else faces the same, she/he may do the same.
> >>
> >> Till that time, I guess nothing needs to be done.
> >
> >
> > Ajay:
> >
> > Since you've already installed the patch, could I be lazy and ask you a
> > favour?   In the scenario where you have booted with mesh disabled, could
> > you go over to the Sugar control/panel settings Network applet, turn the
> > radio off,  discard network history, turn the radio back on, wait a bit,
> and
> > see what icons appear in the neighbourhood view?
> >
> > Curious to see what happens here.  I'll do some more testing using this
> > kernel/patch on both gnome and sugar next week, but thought if you had a
> few
> > seconds I could get a 'head start' at looking at this situation.  If
> not, no
> > big deal - what's done is already really neat!  Thanks.
> >
> > Cheers,
> >
> > KG
> >
> >>
> >> Sorry Sascha, and everyone.
> >>
> >> Regards,
> >> Ajay
> >>
> >> On Sat, May 5, 2012 at 2:15 PM, Martin Abente
> >> <martin.abente.lahaye at gmail.com> wrote:
> >> > just in case, did you try this combination:
> >> >
> >> > libertas(without the patch) + disable_mesh.sh(removed) +
> >> > resume-from-suspend
> >> > (?)
> >> >
> >> > IF NM still crashes then we have been looking in the wrong direction,
> if
> >> > not
> >> > then we need to look deeper into the patch probably (@silbe ;)).
> >> >
> >> >
> >> > On Fri, May 4, 2012 at 10:20 PM, Ajay Garg <ajaygargnsit at gmail.com>
> >> > wrote:
> >> >>
> >> >> On Sat, May 5, 2012 at 3:42 AM, Martin Abente
> >> >> <martin.abente.lahaye at gmail.com> wrote:
> >> >> > Did you remove the disable mesh.script for the testing?
> >> >>
> >> >> Yes.
> >> >>
> >> >> Both from ::
> >> >>
> >> >> a)
> >> >> my custom added in '/etc/init.d/NetworkManager'.
> >> >>
> >> >> b)
> >> >> '/etc/powed/postresume.d/disable_mesh.sh'
> >> >>
> >> >>
> >> >> Regards,
> >> >> Ajay
> >> >> >
> >> >> > El may 4, 2012 10:39 p.m., "Ajay Garg" <ajaygargnsit at gmail.com>
> >> >> > escribió:
> >> >> >>
> >> >> >> On Sat, May 5, 2012 at 2:03 AM, Sascha Silbe
> >> >> >> <silbe at activitycentral.com>
> >> >> >> wrote:
> >> >> >> > Ajay Garg <ajaygargnsit at gmail.com> writes:
> >> >> >> >
> >> >> >> > [...]
> >> >> >> >> b)
> >> >> >> >> Ensured that '/etc/modprobe.d/libertas.conf' contained only the
> >> >> >> >> following line ::
> >> >> >> >>
> >> >> >> >>               options libertas libertas_disablemesh=0
> >> >> >> > [...]
> >> >> >> >> f)
> >> >> >> >> Upon resume-from-suspend, NO ICONS COULD BE SEEN IN
> NEIGHBORHOOD
> >> >> >> >> VIEW.
> >> >> >> >
> >> >> >> > Interesting.
> >> >> >> >
> >> >> >> >> g)
> >> >> >> >> Observations e) and f) were observed, _every single time_.
> >> >> >> >
> >> >> >> > OK, I suppose you repeated this often enough and using exactly
> the
> >> >> >> > same
> >> >> >> > environment and procedures as the other test cases? I.e. you are
> >> >> >> > sure
> >> >> >> > that it's really specific to libertas_disablemesh=0 rather than
> >> >> >> > just
> >> >> >> > occurring at random even without the libertas_disablemesh
> setting
> >> >> >> > or
> >> >> >> > based on how the suspend / resume was triggered (e.g. idle
> suspend
> >> >> >> > vs. lid or power switch)?
> >> >> >>
> >> >> >> I tried 3 times, and it happened every time. (I tried with the
> "lid"
> >> >> >> approach every time, under identical conditions and set of
> >> >> >> procedures.).
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> >
> >> >> >> > I don't see anything in the patch or the module params code that
> >> >> >> > would
> >> >> >> > explain this behaviour. If it's reproducible, I'll have to dive
> >> >> >> > into
> >> >> >> > it
> >> >> >> > and debug a bit...
> >> >> >>
> >> >> >> It is reproducible every time (at least at my end). :)
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> >
> >> >> >> > Thanks for testing, BTW!
> >> >> >>
> >> >> >> My pleasure :)
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> >
> >> >> >> > Sascha
> >> >> >> >
> >> >> >> > --
> >> >> >> > http://sascha.silbe.org/
> >> >> >> > http://www.infra-silbe.de/
> >> >> >>
> >> >> >>
> >> >> >> Regards,
> >> >> >> Ajay
> >> >> >> _______________________________________________
> >> >> >> Sugar-devel mailing list
> >> >> >> Sugar-devel at lists.sugarlabs.org
> >> >> >> http://lists.sugarlabs.org/listinfo/sugar-devel
> >> >
> >> >
> >> _______________________________________________
> >> Devel mailing list
> >> Devel at lists.laptop.org
> >> http://lists.laptop.org/listinfo/devel
> >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.laptop.org/pipermail/devel/attachments/20120510/4974b055/attachment.html>

More information about the Devel mailing list