MU736 reboots itself just after connection started

Sun Jan 26 10:44:35 PST 2014

Hey Franko & Ben,

Have you guys experienced a complete modem reboot each time I try to get
it connected? This is with a MU736, see relevant logs below:

ModemManager[18658]: <info>  [1390761652.244288]
[mm-iface-modem-simple.c:501] connection_step(): Simple connect state
(6/8): Bearer
ModemManager[18658]: <debug> [1390761652.244468]
[mm-iface-modem-simple.c:521] connection_step(): Creating new bearer...
ModemManager[18658]: <debug> [1390761652.246735]
[huawei/mm-broadband-modem-huawei.c:2130] huawei_modem_create_bearer():
This device (enp0s29u1u7) can support ndisdup feature
ModemManager[18658]: <debug> [1390761652.247081]
[huawei/mm-broadband-modem-huawei.c:2089] create_bearer_for_net_port():
^NDISDUP supported, creating huawei bearer...
ModemManager[18658]: <debug> [1390761652.250018] [mm-serial-port.c:978]
mm_serial_port_open(): (ttyUSB1) device open count is 4 (open)
ModemManager[18658]: <debug> [1390761652.250354] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 3 (close)
ModemManager[18658]: <debug> [1390761652.251268]
[huawei/mm-broadband-modem-huawei.c:2038]
huawei_modem_create_bearer_finish(): New huawei bearer created at DBus
path '/org/freedesktop/ModemManager1/Bearer/1'
ModemManager[18658]: <info>  [1390761652.254341]
[mm-iface-modem-simple.c:583] connection_step(): Simple connect state
(7/8): Connect
ModemManager[18658]: <debug> [1390761652.254701] [mm-bearer.c:591]
mm_bearer_connect(): Connecting bearer
'/org/freedesktop/ModemManager1/Bearer/1'
ModemManager[18658]: <info>  [1390761652.255000] [mm-iface-modem.c:1371]
__iface_modem_update_state_internal(): Modem
/org/freedesktop/ModemManager1/Modem/1: state changed (registered ->
connecting)
ModemManager[18658]: <debug> [1390761652.257799]
[mm-broadband-bearer.c:1230] connect(): Launching 3GPP connection
attempt with APN 'ac.vodafone.es'
ModemManager[18658]: <debug> [1390761652.258014]
[huawei/mm-broadband-bearer-huawei.c:254] connect_3gpp_context_step():
No specific IP family requested, defaulting to ipv4
ModemManager[18658]: <debug> [1390761652.258959] [mm-serial-port.c:978]
mm_serial_port_open(): (ttyUSB1) device open count is 4 (open)
ModemManager[18658]: <debug> [1390761652.259468]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): --> 'AT+CSQ<CR>'
ModemManager[18658]: <debug> [1390761652.270039]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <-- '<CR><LF>+CSQ:
22,1<CR><LF><CR><LF>OK<CR><LF>'
ModemManager[18658]: <debug> [1390761652.271972] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 3 (close)
ModemManager[18658]: <info>  [1390761652.274015] [mm-iface-modem.c:1144]
update_signal_quality(): Modem /org/freedesktop/ModemManager1/Modem/1:
signal quality updated (70)
ModemManager[18658]: <debug> [1390761652.274425] [mm-iface-modem.c:1214]
signal_quality_check_ready(): Periodic signal quality checks rescheduled
(interval = 30s)
ModemManager[18658]: <debug> [1390761652.277514]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): --> 'AT^SYSINFOEX<CR>'
ModemManager[18658]: <debug> [1390761652.296690]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <--
'<CR><LF>^SYSINFOEX:2,3,0,1,0,3,"WCDMA",41,"WCDMA"<CR><LF><CR><LF>OK<CR><LF>'
ModemManager[18658]: <debug> [1390761652.298776]
[huawei/mm-broadband-modem-huawei.c:546]
load_access_technologies_finish(): Access Technology: 'umts'
ModemManager[18658]: <info>  [1390761652.299610] [mm-iface-modem.c:894]
mm_iface_modem_update_access_technologies(): Modem
/org/freedesktop/ModemManager1/Modem/1: access technology changed
(unknown -> umts)
ModemManager[18658]: <debug> [1390761652.299951] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 2 (close)
ModemManager[18658]: <debug> [1390761652.302542]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): -->
'AT^NDISDUP=1,1,"ac.vodafone.es","vodafone","vodafone",0<CR>'
ModemManager[18658]: <debug> [1390761652.389670]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <-- '<CR><LF>OK<CR><LF>'
ModemManager[18658]: <debug> [1390761652.391484] [mm-serial-port.c:978]
mm_serial_port_open(): (ttyUSB1) device open count is 3 (open)
ModemManager[18658]: <debug> [1390761652.392181] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 2 (close)
ModemManager[18658]: <debug> [1390761652.392758]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): --> 'AT^NDISSTATQRY?<CR>'
ModemManager[18658]: <debug> [1390761652.416589]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <--
'<CR><LF>^NDISSTATQRY: 1,0,,"IPV4"<CR><LF><CR><LF>OK<CR><LF>'
ModemManager[18658]: <debug> [1390761652.419247] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 1 (close)
ModemManager[18658]: <debug> [1390761652.419870] [mm-port.c:138]
mm_port_set_connected(): (enp0s29u1u7): port now connected
ModemManager[18658]: <debug> [1390761652.420340] [mm-bearer.c:489]
connect_ready(): Connected bearer '/org/freedesktop/ModemManager1/Bearer/1'
ModemManager[18658]: <info>  [1390761652.423519] [mm-iface-modem.c:1371]
__iface_modem_update_state_internal(): Modem
/org/freedesktop/ModemManager1/Modem/1: state changed (connecting ->
connected)
ModemManager[18658]: <info>  [1390761652.426950]
[mm-iface-modem-simple.c:602] connection_step(): Simple connect state
(8/8): All done
ModemManager[18658]: <debug> [1390761654.913647]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <--
'<CR><LF>^NDISSTAT: 1,,,"IPV4"<CR><LF>'
ModemManager[18658]: <debug> [1390761654.915849]
[huawei/mm-broadband-modem-huawei.c:1668] huawei_ndisstat_changed():
NDIS status: IPv4 connected, IPv6 not available
ModemManager[18658]: <debug> [1390761654.916258]
[huawei/mm-broadband-bearer-huawei.c:688] report_connection_status():
Received spontaneous ^NDISSTAT (connected)
ModemManager[18658]: <debug> [1390761655.582272]
[mm-at-serial-port.c:436] debug_log(): (ttyUSB1): <-- '<CR><LF>^MODE:
5,9<CR><LF>'
ModemManager[18658]: <debug> [1390761655.583482]
[huawei/mm-broadband-modem-huawei.c:1595] huawei_mode_changed(): Access
Technology: 'hspa-plus'
ModemManager[18658]: <info>  [1390761655.584669] [mm-iface-modem.c:894]
mm_iface_modem_update_access_technologies(): Modem
/org/freedesktop/ModemManager1/Modem/1: access technology changed (umts
-> hspa-plus)

(CRASH)

ModemManager[18658]: <info>  [1390761656.178863] [mm-manager.c:355]
device_removed(): (net/enp0s29u1u7): released by modem
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7
ModemManager[18658]: <debug> [1390761656.188229] [mm-serial-port.c:752]
data_available(): (ttyUSB1) unexpected port hangup!
ModemManager[18658]: <debug> [1390761656.188432] [mm-serial-port.c:1148]
mm_serial_port_close_force(): (ttyUSB1) forced to close port
ModemManager[18658]: <debug> [1390761656.188600] [mm-serial-port.c:1024]
mm_serial_port_close(): (ttyUSB1) device open count is 0 (close)
ModemManager[18658]: <debug> [1390761656.188788] [mm-serial-port.c:1040]
mm_serial_port_close(): (ttyUSB1) closing serial port...
ModemManager[18658]: <debug> [1390761656.189014] [mm-serial-port.c:1073]
mm_serial_port_close(): (ttyUSB1) serial port closed
ModemManager[18658]: <info>  [1390761656.190175] [mm-manager.c:355]
device_removed(): (tty/ttyUSB1): released by modem
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7
ModemManager[18658]: <info>  [1390761656.192500] [mm-manager.c:355]
device_removed(): (tty/ttyUSB2): released by modem
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7
ModemManager[18658]: <info>  [1390761656.194038] [mm-manager.c:355]
device_removed(): (tty/ttyUSB0): released by modem
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7
ModemManager[18658]: <debug> [1390761656.195225] [mm-manager.c:360]
device_removed(): Removing empty device
'/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7'
ModemManager[18658]: <debug> [1390761656.197855] [mm-bearer.c:896]
mm_bearer_dbus_unexport(): Removing from DBus bearer at
'/org/freedesktop/ModemManager1/Bearer/1'
ModemManager[18658]: <debug> [1390761656.198570] [mm-device.c:364]
unexport_modem(): Unexported modem
'/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7' from path
'/org/freedesktop/ModemManager1/Modem/1'
ModemManager[18658]: <debug> [1390761656.202374] [mm-port.c:138]
mm_port_set_connected(): (enp0s29u1u7): port now disconnected
ModemManager[18658]: <debug> [1390761656.203322] [mm-serial-port.c:1148]
mm_serial_port_close_force(): (ttyUSB0) forced to close port
ModemManager[18658]: <debug> [1390761656.204323] [mm-base-modem.c:1557]
finalize(): Modem (Huawei)
'/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.7' completely disposed

-- 
Aleksander