Hi,

network manager's modemmanager crashed when i've inserted my openmoko 
freerunner while an 3g usb device driven by the option driver was 
already connected.

These are the last bits in messages:

[20462.652083] usb 6-1: new full speed USB device number 4 using uhci_hcd
[20462.836424] usb 6-1: New USB device found, idVendor=1d50, idProduct=5119
[20462.836440] usb 6-1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
[20462.836447] usb 6-1: Product: Neo1973 Bootloader U-Boot 
1.3.2-dirty-moko12
[20462.836454] usb 6-1: Manufacturer: OpenMoko, Inc
[20462.836459] usb 6-1: SerialNumber: 0000000
mtp-probe: checking bus 6, device 4: 
"/sys/devices/pci0000:00/0000:00:1d.0/usb6/6-1"
mtp-probe: bus: 6, device: 4 was not an MTP device
[20462.901834] cdc_acm 6-1:1.0: ttyACM0: USB ACM device
[20462.904417] usbcore: registered new interface driver cdc_acm
[20462.904420] cdc_acm: v0.26:USB Abstract Control Model driver for USB 
modems and ISDN adapters
[20463.624142] usb 6-1: USB disconnect, device number 4
[20463.641859] CPU 0

This is the stracktrace:

acm_ctrl_msg+0x16/0x59
mutex_lock+0x13/0x2a
acm_port_down+0x4c/0xcb
acm_tty_close+0x75/0x93
tty_release+0x1b5/0x47c
? compat_do_readv_write+0x199/0x1ae
fput+0xf8/0x1ad
filp_close+0x69/0x75
sys_close+0x8a/0xea
sysenter_dispatch+0x07/0x32

Config attached.

The 3g device is:
Bus 006 Device 002: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 
HSDPA Modem / E230/E270 HSDPA/HSUPA Modem

Thanks,
riccardo