[Bug 1011052] [NEW] plasma-widget-menubar crashes plasma-desktop when I close any application

[JoseLuisTriana]

Public bug reported:

The crash is caused by a segmentation fault in plasma-desktop, related
with menubar.

Steps to reproduce:

1.- Add a superior panel in plasma-workspace.
2.- Add the menubar widget in that panel. 
3.- Open an application.
4.- Vuala! plasma-desktop crashes and DrKonqi appears. 

I attach the backtrace that DrKonqi generates when I have all the
debugging packages it is able to install. This backtrace is not complete
as you don't ship debugging symbols for:

plasma-desktop --> /usr/bin/plasma-desktop
plasma-widget-menubar--> /usr/lib/kde4/plasma_applet_menubar.so

As DrKonqi reports that.

What is expected to happen?

-> To close the application that I have opened as normal and nothing
happening.

What happened instead?

-> Plasma dekstop crashes.

My Ubuntu Version:

Description:    Ubuntu 12.04 LTS
Release:        12.04

Plasma-dekstop version:

plasma-desktop:
  Instalados: 4:4.8.3-0ubuntu0.2
  Candidato:  4:4.8.3-0ubuntu0.2
  Tabla de versión:
 *** 4:4.8.3-0ubuntu0.2 0
        500 http://mx.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     4:4.8.2a-0ubuntu4 0
        500 http://mx.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

Plasma-widget-menubar version:

plasma-widget-menubar:
  Instalados: 0.1.17-0ubuntu1
  Candidato:  0.1.17-0ubuntu1
  Tabla de versión:
 *** 0.1.17-0ubuntu1 0
        500 http://mx.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: plasma-widget-menubar 0.1.17-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CheckboxSubmission: 12497377426c4e40d55dfc62c00d0a8b
CheckboxSystem: 5606fb5d476dcfd021a0181d012c8ef5
Date: Sat Jun  9 22:34:02 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: plasma-widget-menubar
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: plasma-widget-menubar (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/1011052

Title:
  plasma-widget-menubar crashes plasma-desktop when I close any
  application

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