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Re: NetworkManager 1.1.90 : nm-exported-object.c:293:nm_exported_object_class_add_interface: assertion failed: (object_property != NULL)

On Thu, 2016-03-10 at 10:24 -0800, Ali Nematollahi wrote:

Hi Thomas

Thanks! This is much better...here is the output from start to
finish:
mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id
'2ea06a44171a29335a8b7f781e0f9559bc24976d')
  -------------------------
  Hardware |   manufacturer: 'Cinterion'
           |          model: 'PHS8-USA'
           |       revision: 'REVISION 03.001'
           |      supported: 'gsm-umts'
           |        current: 'gsm-umts'
           |   equipment id: '351502050184415'
  -------------------------
  System   |         device:
'/sys/devices/ocp.2/47400000.usb/47401c00.usb/musb-
hdrc.1.auto/usb2/2-1'
           |        drivers: 'option1'
           |         plugin: 'Cinterion'
           |   primary port: 'ttyUSB2'
           |          ports: 'ttyUSB1 (gps), ttyUSB2 (at), ttyUSB3
(at)'
  -------------------------
  Numbers  |           own : '+12899368246'
  -------------------------
  Status   |           lock: 'none'
           | unlock retries: 'sim-pin (5), sim-pin2 (5), sim-puk
(10),
sim-puk2 (10), ph-net-pin (10), ph-net-puk (32), ph-fsim-pin (10),
ph-fsim-puk (32)'
           |          state: 'disabled'
           |    power state: 'unknown'
           |    access tech: 'unknown'
           | signal quality: '0' (cached)
  -------------------------
  Modes    |      supported: 'allowed: 2g; preferred: none
           |                  allowed: 3g; preferred: none
           |                  allowed: 2g, 3g; preferred: none'
           |        current: 'allowed: any; preferred: none'
  -------------------------
  Bands    |      supported: 'unknown'
           |        current: 'unknown'
  -------------------------
  IP       |      supported: 'none'


Ok, here's the problem.  Could you grab the ModemManager debug output?

mmcli --set-logging=debug

and then replug the modem (if you can!) or rmmod the modem drivers and
modprobe them again.  We're looking for the response to the
"AT+CGDCONT=?" command and why MM apparently doesn't parse that
correctly.  That'll look something like this:

ModemManager[2768]: <debug> [1457634614.295964] [mm-port-serial-at.c:459] debug_log(): (ttyACM3): --> 
'AT+CGDCONT=?<CR>'
ModemManager[2768]: <debug> [1457634614.309936] [mm-port-serial-at.c:459] debug_log(): (ttyACM3): <-- 
'<CR><LF>+CGDCONT: (1-10),"IP",,,(0,1),(0,1)<CR><LF>+CGDCONT: (1-10),"IPV6",,,(0,1),(0,1)<CR><LF>+CGDCONT: 
(1-10),"IPV4V6",,,(0,1),(0,1)<CR><LF><CR><LF>OK<CR><LF>'

which for this device results in:

  IP       |      supported: 'ipv4, ipv6, ipv4v6'

Dan


  -------------------------
  3GPP     |           imei: '351502050184415'
           |  enabled locks: 'none'
           |    operator id: 'unknown'
           |  operator name: 'unknown'
           |   subscription: 'unknown'
           |   registration: 'unknown'
  -------------------------
  SIM      |           path: '/org/freedesktop/ModemManager1/SIM/0'

  -------------------------
  Bearers  |          paths: 'none'

root beaglebone:~# mmcli -m 0 -e
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
state changed (disabled -> enabling)
ModemManager[2687]: <warn>  (ttyUSB2): port attributes not fully set
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
3GPP Registration state changed (unknown -> registering)
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
3GPP Registration state changed (registering -> home)

mmcli -m 0 --simple-connect="apn=m2minternet.apn"
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
state changed (enabling -> registered)
successfully enabled the modem
root beaglebone:~#
root beaglebone:~# mmcli -m 0 --simple-connect="apn=m2minternet.apn"
ModemManager[2687]: <info>  Simple connect started...
ModemManager[2687]: <info>  Simple connect state (4/8): Wait to get
fully
enabled
ModemManager[2687]: <info>  Simple connect state (5/8): Register
ModemManager[2687]: <info>  Simple connect state (6/8): Bearer
ModemManager[2687]: <info>  Simple connect state (7/8): Connect
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
state changed (registered -> connecting)
ModemManager[2687]: <warn>  (ttyUSB3): port attributes not fully set
ModemManager[2687]: <info>  Modem
/org/freedesktop/ModemManager1/Modem/0:
state changed (connecting -> connected)
ModemManager[2687]: <info>  Simple connect state (8/8): All done
successfully connected the modem
root beaglebone:~# mmcli -b 0
Bearer '/org/freedesktop/ModemManager1/Bearer/0'
  -------------------------
  Status             |   connected: 'yes'
                     |   suspended: 'no'
                     |   interface: 'ttyUSB3'
                     |  IP timeout: '20'
  -------------------------
  Properties         |         apn: 'm2minternet.apn'
                     |     roaming: 'allowed'
                     |     IP type: 'none'
                     |        user: 'none'
                     |    password: 'none'
                     |      number: 'none'
                     | Rm protocol: 'unknown'
  -------------------------
  IPv4 configuration |   method: 'ppp'
                     |  address: 'unknown'
                     |   prefix: '0'
                     |  gateway: 'unknown'
                     |      DNS: none
  -------------------------
  IPv6 configuration |   method: 'unknown'
root beaglebone:~#   export G_DEBUG=fatal-criticals
root beaglebone:~# export G_DEBUG=fatal-criticals
root beaglebone:~# echo $G_DEBUG
fatal-criticals
root beaglebone:~#   gdb /usr/sbin/NetworkManager
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/g
pl.html




This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show
copying"
and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabihf".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/NetworkManager...done.
(gdb) run --debug
Starting program: /usr/sbin/NetworkManager --debug
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/arm-linux-gnueabihf/libthread_db.so.1".
NetworkManager-Message: <info>  No config file found or given; using
/etc/NetworkManager/NetworkManager.conf

[New Thread 0xb68723c0 (LWP 2720)]

(NetworkManager:2717): NetworkManager-WARNING **: <warn>  glib-
version:
cannot handle SIGUSR1 and SIGUSR2 signals. Consider upgrading glib to
2.36.0 or newer
NetworkManager[2717]: <info>  NetworkManager (version 1.1.90) is
starting...
NetworkManager[2717]: <info>  Read config:
/etc/NetworkManager/NetworkManager.conf
[New Thread 0xb60723c0 (LWP 2721)]
[New Thread 0xb58723c0 (LWP 2722)]
NetworkManager[2717]: <info>  monitoring kernel firmware directory
'/lib/firmware'.
NetworkManager[2717]: <info>  dns-mgr[0x1f4c20]: set resolv-conf-
mode:
default
NetworkManager[2717]: <info>  dns-mgr[0x1f4c20]: using resolv.conf
manager
'none'
NetworkManager[2717]: <info>  init!
NetworkManager[2717]: <info>        interface-parser: parsing file
/etc/network/interfaces
NetworkManager[2717]: <info>        interface-parser: finished
parsing file
/etc/network/interfaces
NetworkManager[2717]: <info>  guessed connection type (eth0) =
802-3-ethernet
NetworkManager[2717]:
<info>  update_connection_setting_from_if_block:
name:eth0, type:802-3-ethernet, id:Ifupdown (eth0), uuid:
681b428f-beaf-8932-dce4-687ed5bae28e
NetworkManager[2717]: <info>  adding eth0 to connections
NetworkManager[2717]: <info>  adding iface eth0 to eni_ifaces
NetworkManager[2717]: <info>  guessed connection type (usb0) =
802-3-ethernet
NetworkManager[2717]:
<info>  update_connection_setting_from_if_block:
name:usb0, type:802-3-ethernet, id:Ifupdown (usb0), uuid:
3232978a-bef5-2ef2-3aa8-fdd650bb306d
NetworkManager[2717]: <info>  addresses count: 1
NetworkManager[2717]: <info>  No dns-nameserver configured in
/etc/network/interfaces
NetworkManager[2717]: <info>  adding usb0 to connections
NetworkManager[2717]: <info>  adding iface usb0 to eni_ifaces
NetworkManager[2717]: <info>  autoconnect
NetworkManager[2717]: <info>  management mode: unmanaged
NetworkManager[2717]: <info>  devices added (path:
/sys/devices/ocp.2/481cc000.d_can/net/can0, iface: can0)
NetworkManager[2717]: <info>  device added (path:
/sys/devices/ocp.2/481cc000.d_can/net/can0, iface: can0): no ifupdown
configuration found.
NetworkManager[2717]: <info>  devices added (path:
/sys/devices/ocp.2/481d0000.d_can/net/can1, iface: can1)
NetworkManager[2717]: <info>  device added (path:
/sys/devices/ocp.2/481d0000.d_can/net/can1, iface: can1): no ifupdown
configuration found.
NetworkManager[2717]: <info>  devices added (path:
/sys/devices/ocp.2/4a100000.ethernet/net/eth0, iface: eth0)
NetworkManager[2717]: <info>  locking wired connection setting
NetworkManager[2717]: <info>  devices added (path:
/sys/devices/virtual/net/lo, iface: lo)
NetworkManager[2717]: <info>  device added (path:
/sys/devices/virtual/net/lo, iface: lo): no ifupdown configuration
found.
NetworkManager[2717]: <info>  end _init.
NetworkManager[2717]: <info>  Loaded settings plugin ifupdown: (C)
2008
Canonical Ltd.  To report bugs please use the NetworkManager mailing
list.
(/usr/lib/NetworkManager/libnm-settings-plugin-ifupdown.so)
NetworkManager[2717]: <info>  Loaded settings plugin iBFT: (c) 2014
Red
Hat, Inc.  To report bugs please use the NetworkManager mailing list.
(/usr/lib/NetworkManager/libnm-settings-plugin-ibft.so)
NetworkManager[2717]: <info>  Loaded settings plugin keyfile: (c)
2007 -
2015 Red Hat, Inc.  To report bugs please use the NetworkManager
mailing
list.
NetworkManager[2717]: <info>  (2093568) ... get_connections.
NetworkManager[2717]: <info>  (2093568) ... get_connections
(managed=false): return empty list.
NetworkManager[2717]: <info>  keyfile: new connection
/etc/NetworkManager/system-connections/ali
(d14ba871-2179-4e8e-82bc-bb053c9c6ee9,"ali")
NetworkManager[2717]: <info>  get unmanaged devices count: 1
NetworkManager[2717]: <info>  hostname: couldn't get property from
hostnamed
NetworkManager[2717]: <info>  WiFi enabled by radio killswitch;
enabled by
state file
NetworkManager[2717]: <info>  WWAN enabled by radio killswitch;
enabled by
state file
NetworkManager[2717]: <info>  Networking is enabled by state file
NetworkManager[2717]: <info>  Loaded device plugin: NMVxlanFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMVlanFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMVethFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMTunFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMMacvlanFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMIPTunnelFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin:
NMInfinibandFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMEthernetFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMBridgeFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMBondFactory
(internal)
NetworkManager[2717]: <info>  Loaded device plugin: NMWifiFactory
(/usr/lib/NetworkManager/libnm-device-plugin-wifi.so)
NetworkManager[2717]: <info>  Loaded device plugin: NMBluezManager
(/usr/lib/NetworkManager/libnm-device-plugin-bluetooth.so)
NetworkManager[2717]: <info>  Loaded device plugin: NMWwanFactory
(/usr/lib/NetworkManager/libnm-device-plugin-wwan.so)
NetworkManager[2717]: <info>  Loaded device plugin: NMAtmManager
(/usr/lib/NetworkManager/libnm-device-plugin-adsl.so)
NetworkManager[2717]: <warn>  platform-linux: kernel support for
IFLA_INET6_ADDR_GEN_MODE failed to detect; assume no support
NetworkManager[2717]: <info>  (can1): new Generic device
(/org/freedesktop/NetworkManager/Devices/0)
NetworkManager[2717]: <info>  (can0): new Generic device
(/org/freedesktop/NetworkManager/Devices/1)
NetworkManager[2717]: <info>  (eth0): link connected
NetworkManager[2717]: <info>  (eth0): new Ethernet device
(/org/freedesktop/NetworkManager/Devices/2)
NetworkManager[2717]: <info>  (lo): link connected
NetworkManager[2717]: <info>  (lo): new Generic device
(/org/freedesktop/NetworkManager/Devices/3)
NetworkManager[2717]: <info>  startup complete
[New Thread 0xb4e0d3c0 (LWP 2724)]
NetworkManager[2717]: <info>  ModemManager available in the bus
NetworkManager[2717]: <info>  (ttyUSB2): new Broadband device
(/org/freedesktop/NetworkManager/Devices/4)
NetworkManager[2717]: <info>  (ttyUSB2): device state change:
unmanaged ->
unavailable (reason 'managed') [10 20 2]
NetworkManager[2717]: <info>  (ttyUSB2): modem state 'connected'
NetworkManager[2717]: <info>  (ttyUSB2): device state change:
unavailable
-> disconnected (reason 'none') [20 30 0]
NetworkManager[2717]: <info>  Auto-activating connection 'ali'.
**
NetworkManager:ERROR:nm-exported-
object.c:293:nm_exported_object_class_add_interface:
assertion failed: (object_property != NULL)

Program received signal SIGABRT, Aborted.
0xb6ab8f96 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6
(gdb) bt
#0  0xb6ab8f96 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6
#1  0xb6ac6f6a in raise () from /lib/arm-linux-gnueabihf/libc.so.6
#2  0xb6ac9408 in abort () from /lib/arm-linux-gnueabihf/libc.so.6
#3  0xb6cb3d6a in g_assertion_message ()
   from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
#4  0xb6cb4142 in g_assertion_message_expr ()
   from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
#5  0x000b19fe in nm_exported_object_class_add_interface (
    object_class=0xb19ff, dbus_skeleton_type=2435888)
    at nm-exported-object.c:293
#6  0xb6d46634 in g_type_class_ref ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
#7  0xb6d466ce in g_type_class_ref ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
#8  0xb6d35972 in g_object_new_valist ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
#9  0xb6d35b88 in g_object_new ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
#10 0x0009fa36 in nm_act_request_new (settings_connection=<optimized
out>,
    specific_object=0x0, subject=0x233cc0, device=0x24e018)
    at nm-activation-request.c:487
#11 0x000c4854 in nm_manager_activate_connection (self=0x1e2020,
    connection=0x20a008, specific_object=0x0, device=0x24e018,
---Type <return> to continue, or q <return> to quit---
    subject=0x233cc0, error=0xbefffb14) at nm-manager.c:3112
#12 0x000c70b6 in auto_activate_device (user_data=0x23dcd8) at
nm-policy.c:694
#13 0xb6c9ca02 in ?? () from /lib/arm-linux-gnueabihf/libglib-
2.0.so.0
#14 0xb6c9ca02 in ?? () from /lib/arm-linux-gnueabihf/libglib-
2.0.so.0
Backtrace stopped: previous frame identical to this frame (corrupt
stack?)
(gdb) bt full
#0  0xb6ab8f96 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6
No symbol table info available.
#1  0xb6ac6f6a in raise () from /lib/arm-linux-gnueabihf/libc.so.6
No symbol table info available.
#2  0xb6ac9408 in abort () from /lib/arm-linux-gnueabihf/libc.so.6
No symbol table info available.
#3  0xb6cb3d6a in g_assertion_message ()
   from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
No symbol table info available.
#4  0xb6cb4142 in g_assertion_message_expr ()
   from /lib/arm-linux-gnueabihf/libglib-2.0.so.0
No symbol table info available.
#5  0x000b19fe in nm_exported_object_class_add_interface (
    object_class=0xb19ff, dbus_skeleton_type=2435888)
    at nm-exported-object.c:293
        hyphen_name = 0xb6d23000 "\350\336\v"
        classinfo = 0xb6cc750f
        method = {dbus_skeleton_type = 0, method_name = 0x0, impl =
0x4}
        ap = {__ap = 0xbefff974}
        method_name = <optimized out>
        impl = <optimized out>
        interfaces = 0x0
        n_interfaces = <optimized out>
---Type <return> to continue, or q <return> to quit---
        n_signals = <optimized out>
        n_method_signals = <optimized out>
        object_signal_id = <optimized out>
        query = {signal_id = 0, signal_name = 0x0, itype = 2434192,
          signal_flags = 1829872, return_type = 0, n_params = 655613,
          param_types = 0x0}
        i = <optimized out>
        s = <optimized out>
        dbus_object_class = 0x24c730
        dbus_properties = 0x187340
        object_property = <optimized out>
        n_dbus_properties = 0
        __PRETTY_FUNCTION__ =
"nm_exported_object_class_add_interface"
#6  0xb6d46634 in g_type_class_ref ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
No symbol table info available.
#7  0xb6d466ce in g_type_class_ref ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
No symbol table info available.
#8  0xb6d35972 in g_object_new_valist ()
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
No symbol table info available.
#9  0xb6d35b88 in g_object_new ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/arm-linux-gnueabihf/libgobject-2.0.so.0
No symbol table info available.
#10 0x0009fa36 in nm_act_request_new (settings_connection=<optimized
out>,
    specific_object=0x0, subject=0x233cc0, device=0x24e018)
    at nm-activation-request.c:487
        __PRETTY_FUNCTION__ = "nm_act_request_new"
#11 0x000c4854 in nm_manager_activate_connection (self=0x1e2020,
    connection=0x20a008, specific_object=0x0, device=0x24e018,
    subject=0x233cc0, error=0xbefffb14) at nm-manager.c:3112
        priv = 0x1e2090
        active = <optimized out>
        error_desc = 0x0
        iter = 0x0
        __PRETTY_FUNCTION__ = "nm_manager_activate_connection"
#12 0x000c70b6 in auto_activate_device (user_data=0x23dcd8) at
nm-policy.c:694
        error = 0x0
        subject = 0x233cc0
        data = 0x23dcd8
        policy = <optimized out>
        priv = <optimized out>
        best_connection = 0x20a008
        specific_object = 0x0
        connections = 0x1dddc8
---Type <return> to continue, or q <return> to quit---
        connection_list = 0x250420
        i = <optimized out>
        __PRETTY_FUNCTION__ = "auto_activate_device"
#13 0xb6c9ca02 in ?? () from /lib/arm-linux-gnueabihf/libglib-
2.0.so.0
No symbol table info available.
#14 0xb6c9ca02 in ?? () from /lib/arm-linux-gnueabihf/libglib-
2.0.so.0
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt
stack?)
(gdb)


On Thu, Mar 10, 2016 at 2:39 AM, Thomas Haller <thaller redhat com>
wrote:



On Wed, 2016-03-09 at 14:35 -0800, Ali Nematollahi wrote:


I'm not concerned about IPv6 at all.
I'm running Kernel 3.12

Here is the backtrace:
root beaglebone:~# gdb /usr/sbin/NetworkManager
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licens
es/g
pl.html>
This is free software: you are free to change and redistribute
it.
There is NO WARRANTY, to the extent permitted by law.  Type "show
copying"
and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabihf".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/NetworkManager...done.
(gdb) run --debug --g-fatal-warnings
Starting program: /usr/sbin/NetworkManager --debug --g-fatal-
warnings
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-
gnueabihf/libthread_db.so.1".
NetworkManager-Message: <info>  No config file found or given;
using
/etc/NetworkManager/NetworkManager.conf

[New Thread 0xb686b3c0 (LWP 2821)]

(NetworkManager:2818): NetworkManager-WARNING **: <warn>  glib-
version: cannot handle SIGUSR1 and SIGUSR2 signals. Consider
upgrading glib to 2.36.0 or newer


Hmpf, seems you cannot use --g-fatal-warnings because then NM dumps
core on this warning. This would be fixed now on master

https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?
id=b49322b568725c8c92c0732b14cc726748ec57d3


Can you try again without --g-fatal-warnings:

  export G_DEBUG=fatal-criticals
  gdb /usr/sbin/NetworkManager
  > run --debug


Thomas










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