[Bug 923113] Re: backend_helper.py crashed with RuntimeError in add_signal_receiver(): To make asynchronous calls, receive signals or export objects, D-Bus connections must be attached to a main loop by passing mainloop=... to the constructor or calling dbus.set_default_main_loop(...)

[Robert Roth]

*** This bug is a duplicate of bug 946718 ***
    https://bugs.launchpad.net/bugs/946718

** This bug is no longer a duplicate of private bug 875970
** This bug has been marked a duplicate of bug 946718
   backend_helper.py crashed with RuntimeError in add_signal_receiver(): To make asynchronous calls, receive signals or export objects, D-Bus connections must be attached to a main loop by passing mainloop=... to the constructor or calling dbus.set_default_main_loop(...)

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https://bugs.launchpad.net/bugs/923113

Title:
  backend_helper.py crashed with RuntimeError in add_signal_receiver():
  To make asynchronous calls, receive signals or export objects, D-Bus
  connections must be attached to a main loop by passing mainloop=... to
  the constructor or calling dbus.set_default_main_loop(...)

Status in “update-notifier” package in Ubuntu:
  New

Bug description:
  This crash happens predictably on two very different laptops I tried
  -- when running the 1/28 daily live image from a USB pen drive, then
  choosing to try with persistent storage, then accepting the suggestion
  to install additional software.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: update-notifier-common 0.118.1ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-11.19-generic-pae 3.2.1
  Uname: Linux 3.2.0-11-generic-pae i686
  ApportVersion: 1.91-0ubuntu1
  Architecture: i386
  CasperVersion: 1.301
  CrashCounter: 1
  Date: Sat Jan 28 17:52:49 2012
  ExecutablePath: /usr/lib/update-notifier/backend_helper.py
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120128)
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/lib/update-notifier/backend_helper.py add_cdrom /cdrom
  ProcEnviron:
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  PythonArgs: ['/usr/lib/update-notifier/backend_helper.py', 'add_cdrom', '/cdrom']
  SourcePackage: update-notifier
  Title: backend_helper.py crashed with RuntimeError in add_signal_receiver(): To make asynchronous calls, receive signals or export objects, D-Bus connections must be attached to a main loop by passing mainloop=... to the constructor or calling dbus.set_default_main_loop(...)
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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