unity-2d-shell crashed with SIGSEGV in QDBusAbstractInterface::asyncCallWithArgumentList()

[Jochem]

Unity2d crashed while firefox, nautilus, libreoffice writer and evince are opened. During scrolling in pdf document. No other causes identifiable.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-2d-shell 5.10.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu3
Architecture: amd64
CrashCounter: 1
Date: Mon Apr 16 12:40:26 2012
ExecutablePath: /usr/bin/unity-2d-shell
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
ProcCmdline: unity-2d-shell
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f9904b234dd <_ZN22QDBusAbstractInterface25asyncCallWithArgumentListERK7QStringRK5QListI8QVariantE+45>: cmpb $0x0,0xd4(%rbp)
 PC (0x7f9904b234dd) ok
 source "$0x0" ok
 destination "0xd4(%rbp)" (0x2100000000d8) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 QDBusAbstractInterface::asyncCallWithArgumentList(QString const&, QList<QVariant> const&) () from /usr/lib/x86_64-linux-gnu/libQtDBus.so.4
 BamfView::icon() const () from /usr/lib/libQtBamf.so.1
 WindowInfo::icon() const () from /usr/lib/libunity-2d-private.so.0
 WindowInfo::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libunity-2d-private.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libQtDeclarative.so.4
Title: unity-2d-shell crashed with SIGSEGV in QDBusAbstractInterface::asyncCallWithArgumentList()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
XsessionErrors:
 (gnome-settings-daemon:1759): libappindicator-CRITICAL **: app_indicator_set_label: assertion `IS_APP_INDICATOR (self)' failed
 (nautilus-sendto:2525): Gtk-WARNING **: Unknown property: GtkDialog.has-separator
 gnome-session[1713]: WARNING: Application 'unity-2d-shell.desktop' killed by signal

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #962647, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.