Re: modemmanager broken?

[Dan Williams <dcbw redhat com>]

On Mon, 2010-05-31 at 10:17 +0200, wp1191918-hgvs wrote:
> Hi,
> 
> I have updated network-manager, network-manager-applet and modem-manager
> to the following git versions:
> modemmanager	1:0.3.1~git.20100525t222447.6c3ae7d-1hgvs
> network-manager	1:0.8.1~git.20100526t083526.8bd5168-1hgvs
> network-manager-gnome	1:0.8.1~git.20100526t065235.25dedfb-1hgvs
> 
> Now I have the problem, that the internal sierra 3g modem does not get
> initialized by modem-manager. In /var/log/syslog I see the following
> looping messages:
> 
> .....
> May 31 10:05:28 nc0631 modem-manager: (tty/ttyUSB0): outstanding support
> task prevents export of /sys/devices/pci0000:00/0000:00:1d.1/usb6/6-1
> May 31 10:05:28 nc0631 modem-manager: (tty/ttyUSB0): outstanding support
> task prevents export of /sys/devices/pci0000:00/0000:00:1d.1/usb6/6-1
> .....
> 
> The complete syslog is on patebin.com:
> 
> http://pastebin.com/download.php?i=HW39cShc
> 
> The interesting thing is: it sometimes work but sometimes not. It looks
> like that everything is fine when first starting network-manager /
> modem-manager
> and then enable the device. When I change this sequence - first starting
> the device, then starting nm / mm it fails.

Is there any chance you could run modem-manager with --debug for me?

1) stop NM
2) killall -TERM modem-manager
3) modem-manager --debug
4) start NM
5) reproduce the problem

so we can see what's stopping ttyUSB0 in that log from being handled by
Sierra?  This part isn't supposed to happen:

May 31 10:05:28 nc0631 modem-manager: (ttyUSB0): probe requested by plugin 'Generic'

since the same device that provides ttyUSB0 also also provides ttyUSB2
and the other ports.

Dan