Public bug reported:
Hello,
On Ubuntu 15.10 4.2.0-35, with network-manager 1.0.4-0ubuntu5.3
My WiFi connection is very unstable and I have to often restart NetworkManager
service (~ a dozen times every day...):
sudo systemctl -l status NetworkManager
● NetworkManager.service - Network Manager
Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor
preset: enabled)
Active: active (running) since dim. 2016-04-10 18:17:07 CEST; 2min 58s ago
Main PID: 27832 (NetworkManager)
Memory: 13.8M
CPU: 1.729s
CGroup: /system.slice/NetworkManager.service
├─ 2703 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground
--no-hosts --bind-interfaces
--pid-file=/run/sendsigs.omit.d/network-manager.dnsmasq.pid
--listen-address=127.0.1.1 --conf-file=/var/run/NetworkManager/dnsmasq.conf
--cache-size=0 --proxy-dnssec
--enable-dbus=org.freedesktop.NetworkManager.dnsmasq
--conf-dir=/etc/NetworkManager/dnsmasq.d
├─27832 /usr/sbin/NetworkManager --no-daemon
└─30448 /sbin/dhclient -d -q -sf
/usr/lib/NetworkManager/nm-dhcp-helper -pf
/run/sendsigs.omit.d/network-manager.dhclient-wlan0.pid -lf
/var/lib/NetworkManager/dhclient-7ec429cb-9dde-4ea4-8eda-f259b66e38a7-wlan0.lease
-cf /var/lib/NetworkManager/dhclient-wlan0.conf wlan0
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> keyfile: add
connection in-memory (068de9b1-513a-46f0-b4be-93462d19f68b,"lxcbr0")
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (lxcbr0):
device state change: unmanaged -> unavailable (reason 'connection-assumed') [10
20 41]
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (lxcbr0):
device state change: unavailable -> disconnected (reason 'connection-assumed')
[20 30 41]
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (lxcbr0):
Activation: starting connection 'lxcbr0' (068de9b1-513a-46f0-b4be-93462d19f68b)
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (virbr1-nic):
new Tun device (carrier: OFF, driver: 'tun', ifindex: 34)
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (virbr1):
bridge port virbr1-nic was attached
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (virbr1-nic):
enslaved to virbr1
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <info> (virbr0): new
Bridge device (carrier: OFF, driver: 'bridge', ifindex: 29)
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]:
nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
avril 10 18:17:08 samsung-ubuntu NetworkManager[27832]: <warn> failed to
enumerate oFono devices: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown:
The name org.ofono was not provided by any .service files
Also, each time I restart my desktop, NetworkManager generates a crash report:
cf. attached screenshots.
I have tried an Ubuntu VM with the same packages related to networking and the
exact same releases (same repositories), the crash never happens; the
difference appears to be only the type of network connection: WiFi for the
desktop vs Ethernet for the VM.
Any suggestion?
** Affects: network-manager
Importance: Undecided
Status: New
** Package changed: ubuntu => network-manager
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https://bugs.launchpad.net/bugs/1568560
Title:
nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
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