[Bug 1795955] Re: Ubiquity crashed while trying to connect to wifi

[Jean-Baptiste Lallement]

Thanks for your report.

According to the stack trace, the Ubiquity crash is a consequence of the
NM crash because the service disappeared from the bus.

Oct  3 18:38:06 ubuntu ubiquity[3468]: Exception in GTK frontend (invoking crash handler):
Oct  3 18:38:06 ubuntu ubiquity[3468]: Traceback (most recent call last):
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/plugins/ubi-wireless.py", line 190, in state_changed
Oct  3 18:38:06 ubuntu ubiquity[3468]:     self.selection_changed(None)
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/plugins/ubi-wireless.py", line 121, in selection_changed
Oct  3 18:38:06 ubuntu ubiquity[3468]:     self.nmwidget.is_row_connected()):
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py", line 348, in is_row_connected
Oct  3 18:38:06 ubuntu ubiquity[3468]:     return self.view.is_row_connected()
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/ubiquity/frontend/gtk_components/nmwidgets.py", line 241, in is_row_connected
Oct  3 18:38:06 ubuntu ubiquity[3468]:     if parent and self.wifi_model.is_connected(model[parent][0], ssid):
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/ubiquity/nm.py", line 148, in is_connected
Oct  3 18:38:06 ubuntu ubiquity[3468]:     connectedap = get_prop(device_obj, NM_DEVICE_WIFI, 'ActiveAccessPoint')
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/ubiquity/ubiquity/nm.py", line 28, in get_prop
Oct  3 18:38:06 ubuntu ubiquity[3468]:     return obj.Get(iface, prop, dbus_interface=dbus.PROPERTIES_IFACE)
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 70, in __call__
Oct  3 18:38:06 ubuntu ubiquity[3468]:     return self._proxy_method(*args, **keywords)
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 145, in __call__
Oct  3 18:38:06 ubuntu ubiquity[3468]:     **keywords)
Oct  3 18:38:06 ubuntu ubiquity[3468]:   File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in call_blocking
Oct  3 18:38:06 ubuntu ubiquity[3468]:     message, timeout)
Oct  3 18:38:06 ubuntu ubiquity[3468]: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name :1.16 was not provided by any .service files

Did you report the n-m crash?

** Changed in: ubiquity (Ubuntu)
   Importance: Undecided => Medium

** Changed in: ubiquity (Ubuntu)
       Status: New => Triaged

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https://bugs.launchpad.net/bugs/1795955

Title:
  Ubiquity crashed while trying to connect to wifi

Status in ubiquity package in Ubuntu:
  Triaged

Bug description:
  Running the cosmic ISO from 2018-10-03 15:22.  Boot to live session,
  start the install, try and connect to wifi.

  A few things happen. The indicator seems to crash and then Ubiquity
  crashes.  Not sure which is the cause.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubiquity 18.10.9
  ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
  Uname: Linux 4.18.0-8-generic x86_64
  ApportVersion: 2.20.10-0ubuntu11
  Architecture: amd64
  CasperVersion: 1.396
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Oct  3 18:41:19 2018
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd quiet splash ---
  LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Beta amd64 (20181003.1)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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