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[Janus <ysangkok+launchpad@xxxxxxxxx>]

apport information

** Attachment added: "nmcli-con.txt"
   https://bugs.launchpad.net/bugs/1529085/+attachment/4539713/+files/nmcli-con.txt

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https://bugs.launchpad.net/bugs/1529085

Title:
  References device after it has been removed

Status in network-manager package in Ubuntu:
  New

Bug description:
  First, removal of an USB WLAN adapter (wlan1):

  Dec 24 00:45:10 zeus kernel: [19429.149039] usb 2-5: USB disconnect, device number 2
  ...
  Dec 24 00:45:10 zeus NetworkManager[641]: <info>  devices removed (path: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/net/wlan1, iface: wlan1)
  Dec 24 00:45:10 zeus NetworkManager[641]: <info>  radio killswitch /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/ieee80211/phy0/rfkill2 disappeared
  Dec 24 00:45:10 zeus NetworkManager[641]: <info>  (wlan1): supplicant interface state: completed -> disabled

  After suspending:

  Dec 24 04:22:28 zeus NetworkManager[641]: <info>  sleep requested (sleeping: no  enabled: yes)
  ...
  Dec 24 04:22:28 zeus NetworkManager[641]: <info>  sleeping...
  Dec 24 04:22:28 zeus NetworkManager[641]: <info>  (wlan1): device state change: activated -> unmanaged (reason 'sleeping') [100 10 37]
  Dec 24 04:22:28 zeus NetworkManager[641]: <info>  (wlan1): canceled DHCP transaction, DHCP client pid 20332
  Dec 24 04:22:28 zeus NetworkManager[641]: <info>  (wlan1): DHCPv4 state changed bound -> done
  Dec 24 04:22:28 zeus NetworkManager[641]: <error> [1450927348.627824] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)

  After resuming:

  Dec 24 11:45:33 zeus NetworkManager[641]: <info>  wake requested (sleeping: yes  enabled: yes)
  ...
  Dec 24 11:45:33 zeus NetworkManager[641]: <info>  waking up...
  Dec 24 11:45:33 zeus NetworkManager[641]: <info>  (eth0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
  Dec 24 11:45:33 zeus NetworkManager[641]: <info>  (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
  Dec 24 11:45:33 zeus kernel: [32468.742777] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
  Dec 24 11:45:34 zeus NetworkManager[641]: <info>  (wlan1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
  Dec 24 11:45:34 zeus kernel: [32468.777806] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
  Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.021095] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
  Dec 24 11:45:34 zeus NetworkManager[641]: <warn>  (wlan1): failed to enable userspace IPv6LL address handling
  Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.029979] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
  Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.030751] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
  Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.031323] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
  Dec 24 11:45:34 zeus NetworkManager[641]: <info>  NetworkManager state is now DISCONNECTED

  At this point, not even eth0 works (it was there all the time). Network-manager works again if restarted using the script in init.d.
  --- 
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: LXDE
  DistroRelease: Ubuntu 15.10
  IpRoute:
   default via 10.223.0.3 dev eth0  proto static  metric 100 
   10.223.0.0/16 dev eth0  proto kernel  scope link  src 10.223.35.120  metric 100
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  Package: network-manager 1.0.4-0ubuntu5.2
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  wily
  Uname: Linux 4.2.0-22-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-10-27 (58 days ago)
  UserGroups: adm audio cdrom dialout dip docker lpadmin netdev plugdev sambashare sbuild sudo vboxusers video wireshark www-data
  _MarkForUpload: True
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2015-03-16T23:56:17.808964
  nmcli-dev:
   DEVICE  TYPE      STATE      DBUS-PATH                                  CONNECTION             CON-UUID                              CON-PATH                                           
   eth0    ethernet  connected  /org/freedesktop/NetworkManager/Devices/1  Ethernet connection 1  a4c8b8d2-517e-4293-90fb-3559cb7f95ce  /org/freedesktop/NetworkManager/ActiveConnection/0 
   lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/0  --                     --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

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