Re: how to get 3g modem back in managed state

["Luis Felipe" <felipito gmx net>]

Hi,

sorry for interfering in this discussion, but as I'm having the same problem than Eduard, I would like to provide some info about the issue. But before this, a probably important point: I have here a proprietary ModemManager (see [1]) but this doesn't matter as the failure seems to be the same: after an unexpected PPP-disconnection, the modem disappears from the NM devices list even the ModemManager didn't emitted the 'DeviceRemoved' signal.

For reproducing the issue you can try killing the ppp-daemon when a PDP-context is up. Here this leads to the described issue: The modem is gone from the NM devices list even 'lsusb' shows that the modem is still there and the ModemManager too.

Regards, Luis

[1] ModemManager from this site: http://movilforum.com/escritoriomovistar/


-------- Original-Nachricht --------
> Datum: Wed, 25 Jan 2012 16:08:59 -0600
> Von: Dan Williams <dcbw redhat com>
> An: Eduard Hasenleithner <ehasenle gmail com>
> CC: networkmanager-list gnome org
> Betreff: Re: how to get 3g modem back in managed state

> On Fri, 2011-12-30 at 11:46 +0100, Eduard Hasenleithner wrote:
> > 2011/12/30 José Queiroz <zekkerj gmail com>:
> > > Try to SIGTERM modem-manager.
> > >
> > > sudo killall -TERM modem-manager
> > 
> > This does not work for me. Is there no way to tell network-manager to
> > manage a particular device again while keeping nm (and mm) running?
> 
> We need a bit more information here.  Does the device actually disappear
> from the USB bus (ie, it crashes)?  When this happens check with lsusb
> to see if it's still there or not.
> 
> If it is still there, we'll need some more detailed logs from
> ModemManager.  I did notice that disconnecting the device failed, so it
> would be good to figure out why that happened.  ie this line
> specifically from the logs:
> 
> Dec 29 18:17:28 eeepc modem-manager[519]: <info>  Modem
> /org/freedesktop/ModemManager/Modems/0: state changed (disconnecting
> -> connected)
> 
> indicates that MM was not able to tell the modem to terminate the packet
> connection successfully, and thus it has no choice but to assume you're
> still connected.  A detailed MM debug  log would indicate which command
> is failing there.  See:
> 
> http://live.gnome.org/NetworkManager/Debugging
> 
> for how to get that log.
> 
> > btw, is there a utility which allows to show all devices managed by
> > network manager, and their state (over dbus)?
> 
> nm-tool or "nmcli dev"
> 
> Dan
> 
> 
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> http://mail.gnome.org/mailman/listinfo/networkmanager-list

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