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[Mathieu Trudel-Lapierre <mathieu.tl@xxxxxxxxx>]

You need to look for network-manager-applet, not network-manager.

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https://bugs.launchpad.net/bugs/1418260

Title:
  nm-applet crashed with SIGSEGV in add_menu_item()

Status in Network Manager Applet:
  Confirmed
Status in network-manager-applet package in Ubuntu:
  Fix Released
Status in network-manager-applet source package in Vivid:
  Fix Committed

Bug description:
  [Impact]
  If for any reason ModemManager is unavailable or unable to understand the modem device that pops up as broadband (also, in the case of Desktop-Next), NM-applet may crash due to expecting that there is always a devinfo object from the ModemManager data.

  [Test case]
  Install, use desktop, with ModemManager disabled.

  [Regression potential]
  Minimal, this is a patch from upstream which covers a known issue with NM in case ModemManager is unavailable to answer requests; what may happen as a result of devinfo being unavailable but NM continuing without crashing is that icons and pretty device names or signal level might be unavailable.

  ---

  Crash when trying to install the system.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.04
  Package: network-manager-gnome 0.9.10.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
  Uname: Linux 3.18.0-12-generic x86_64
  ApportVersion: 2.15.1-0ubuntu4
  Architecture: amd64
  CasperVersion: 1.350
  CurrentDesktop: Unity
  Date: Thu Feb  5 00:14:28 2015
  ExecutablePath: /usr/bin/nm-applet
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  IpRoute:
   default via 192.168.179.1 dev wlan0  proto static  metric 1024
   169.254.0.0/16 dev wlan0  scope link  metric 1000
   192.168.179.0/24 dev wlan0  proto kernel  scope link  src 192.168.179.24
  LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150203)
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcCmdline: nm-applet
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x4327a0:	mov    0x18(%r14),%rdi
   PC (0x004327a0) ok
   source "0x18(%r14)" (0x00000018) not located in a known VMA region (needed readable region)!
   destination "%rdi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: network-manager-applet
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: nm-applet crashed with SIGSEGV in g_main_context_dispatch()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  nmcli-con:
   NAME                UUID                                  TYPE             TIMESTAMP   TIMESTAMP-REAL               AUTOCONNECT  READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE      ACTIVE-PATH
   WiiNET              0fb694d1-9615-4328-9737-80258a84ae02  802-11-wireless  1423095224  Do 05 Feb 2015 00:13:44 UTC  yes          no        /org/freedesktop/NetworkManager/Settings/2  yes     wlan0   activated  /org/freedesktop/NetworkManager/ActiveConnection/0
   Wired connection 1  ee5250e7-00fb-463e-a7a6-9c9259942c9e  802-3-ethernet   1423097919  Do 05 Feb 2015 00:58:39 UTC  yes          no        /org/freedesktop/NetworkManager/Settings/0  no      --      --         --
  nmcli-dev:
   DEVICE   TYPE      STATE        DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH
   wlan0    wifi      connected    /org/freedesktop/NetworkManager/Devices/2  WiiNET      0fb694d1-9615-4328-9737-80258a84ae02  /org/freedesktop/NetworkManager/ActiveConnection/0
   eth0     ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/1  --          --                                    --
   ttyACM1  gsm       unavailable  /org/freedesktop/NetworkManager/Devices/4  --          --                                    --
   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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