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** Attachment added: "StacktraceSource.txt"
   https://bugs.launchpad.net/bugs/1492126/+attachment/4457132/+files/StacktraceSource.txt

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https://bugs.launchpad.net/bugs/1492126

Title:
  [wily-proposed only] NetworkManager crashed with SIGSEGV in
  g_variant_iter_loop()

Status in network-manager package in Ubuntu:
  New

Bug description:
  This can be trivially reproduced by installing the wily-proposed
  network-manager on i386 and rebooting. This is also spotted by
  systemd's autopkgtest
  (http://autopkgtest.ubuntu.com/packages/s/systemd/wily/i386/).

  In the journal I see

  Sep 04 08:32:15 autopkgtest NetworkManager[718]: (NetworkManager:718): GLib-GObject-WARNING **: /build/glib2.0-M4BESt/glib2.0-2.45.6/./gobject/gsignal.c:2506: signal 'ModemAdded' is invalid for instance '0x997d760' of type 'GDBusProxy'
  Sep 04 08:32:15 autopkgtest NetworkManager[718]: (NetworkManager:718): GLib-GObject-WARNING **: /build/glib2.0-M4BESt/glib2.0-2.45.6/./gobject/gsignal.c:2506: signal 'ModemRemoved' is invalid for instance '0x997d760' of type 'GDBusProxy'
  Sep 04 08:32:15 autopkgtest NetworkManager[718]: (NetworkManager:718): GLib-CRITICAL **: g_variant_get_va: assertion 'value != NULL' failed
  Sep 04 08:32:15 autopkgtest systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEGV

  I suppose the g_critical is not the thing it fails on, as that would
  be a SIGABRT.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: network-manager 1.0.4-0ubuntu2
  ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
  Uname: Linux 4.2.0-7-generic i686
  ApportVersion: 2.18-0ubuntu9
  Architecture: i386
  Date: Fri Sep  4 08:40:19 2015
  ExecutablePath: /usr/sbin/NetworkManager
  ExecutableTimestamp: 1440792479
  IpRoute:
   default via 10.0.2.2 dev eth0 
   10.0.2.0/24 dev eth0  proto kernel  scope link  src 10.0.2.15
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcCmdline: /usr/sbin/NetworkManager --no-daemon
  ProcCwd: /
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SegvAnalysis:
   Segfault happened at: 0xb701f259 <g_variant_iter_loop+25>:	mov    0xc(%esi),%edi
   PC (0xb701f259) ok
   source "0xc(%esi)" (0x0000000c) not located in a known VMA region (needed readable region)!
   destination "%edi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: network-manager
  StacktraceTop:
   g_variant_iter_loop () from /lib/i386-linux-gnu/libglib-2.0.so.0
   ?? () from /usr/lib/i386-linux-gnu/NetworkManager/libnm-wwan.so
   ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
   ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
   ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
  Title: NetworkManager crashed with SIGSEGV in g_variant_iter_loop()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  nmcli-con: Error: command ['nmcli', '-f', 'all', 'con'] failed with exit code 8: Error: NetworkManager is not running.
  nmcli-dev: Error: command ['nmcli', '-f', 'all', 'dev'] failed with exit code 8: Error: NetworkManager is not running.
  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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