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

[Ajay Garg]

Martin, just one small query :

In one of the earlier mails, it was said that the mac address for "msh0" is
the same as "eth0".
So, would blacklisting the (same) device, be feasible? I mean, would that
not _also_ disable general wifi network detections?


Regards,
Ajay

On Wed, May 2, 2012 at 12:58 PM, Martin Langhoff
<martin.langhoff at gmail.com>wrote:

> On Wed, May 2, 2012 at 3:22 AM, Ajay Garg <ajaygargnsit at gmail.com> wrote:
> > The /etc/powerd/postresume.d/disable_mesh.sh  doesn't work.
>
> So we need to understand why it does not work. Is it a race condition?
> Perhaps it is better fixed as a udev script -- triggering when the
> device appears.
>
> The step that disable_mesh performs is very important. If you don't
> disable it at that level, you haven't disabled mesh at all and all the
> problems persist.
>
> >>  - disable mesh on boot
> > Done. Added the 'echo 0' script in 'start()' method of NetworkManager, so
> > that the effect takes place before NetworkManager starts up. Works like a
> > charm.
>
> Ok. Maybe a udev script is a better place.
>
> >>  - disable mesh on resume, from a powerd-triggered script
> > Does not work, as explained above.
>
> Right but you MUST find a way to make it work.
>
> >>  - blacklist the MAC address so NM ignores it
> >>
> >> you win. Yes, every XO has a different MAC address, but you can read
> >> that on first boot of the OS, and write the NM configuration. See the
> >> olpc-configure script for examples.
> >
> >
> > Would be awesome. I believe this is the one and only complete solution
> > possible :)
>
> Careful here! This only hides the device from NM so you don't race with NM.
>
> > Could you point me to the suitable (examples) link? I will be heartfully
> > grateful.
>
> look at the latest olpc-configure in git://
> dev.laptop.org/projects/olpc-utils
>
>
>
> m
> --
>  martin.langhoff at gmail.com
>  martin at laptop.org -- Software Architect - OLPC
>  - ask interesting questions
>  - don't get distracted with shiny stuff  - working code first
>  - http://wiki.laptop.org/go/User:Martinlanghoff
>
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