Application that crashed: kpackagekit
Version of the application: 0.5.4
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.12-174.2.19.fc12.i686.PAE i686

What I was doing when the application crashed:
On two computers, this crash occurs in about 90% of times that update is run. No other apps are open at the time.

 -- Backtrace:
Application: KPackageKit (kpackagekit), signal: Segmentation fault
[KCrash Handler]
#6  0x034b990a in QMutex::lock() () from /usr/lib/libQtCore.so.4
#7  0x035af9d5 in QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib/libQtCore.so.4
#8  0x035afcdd in QCoreApplication::postEvent(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#9  0x035bf405 in QObject::deleteLater() () from /usr/lib/libQtCore.so.4
#10 0x0386cb1f in PackageKit::ClientPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#11 0x0386e113 in PackageKit::ClientPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#12 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x00c06350 in QDBusConnectionInterface::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libQtDBus.so.4
#15 0x00c066ab in QDBusConnectionInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtDBus.so.4
#16 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x00c061f0 in QDBusConnectionInterface::NameOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libQtDBus.so.4
#19 0x00c0673b in QDBusConnectionInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtDBus.so.4
#20 0x00bcfa3c in ?? () from /usr/lib/libQtDBus.so.4
#21 0x00bd79a8 in ?? () from /usr/lib/libQtDBus.so.4
#22 0x035bff96 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#23 0x03db4b24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0x03dbc281 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0x048838cb in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x035afd73 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0x035b0972 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#28 0x035b0b2e in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#29 0x035daf40 in ?? () from /usr/lib/libQtCore.so.4
#30 0x0076af88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0x0076e8b8 in ?? () from /lib/libglib-2.0.so.0
#32 0x0076e9e4 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0x035dab6d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x03e54356 in ?? () from /usr/lib/libQtGui.so.4
#35 0x035ae2aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#36 0x035ae70a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0x0429ec84 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#38 0x0480edb4 in KMessageBox::createKMessageBox(KDialog*, QIcon const&, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&, QMessageBox::Icon) ()
   from /usr/lib/libkdeui.so.5
#39 0x048101ff in KMessageBox::createKMessageBox(KDialog*, QMessageBox::Icon, QString const&, QStringList const&, QString const&, bool*, QFlags<KMessageBox::Option>, QString const&) ()
   from /usr/lib/libkdeui.so.5
#40 0x048137be in KMessageBox::warningYesNoListWId(unsigned long, QString const&, QStringList const&, QString const&, KGuiItem const&, KGuiItem const&, QString const&, QFlags<KMessageBox::Option>) ()
   from /usr/lib/libkdeui.so.5
#41 0x048139b5 in KMessageBox::warningYesNoList(QWidget*, QString const&, QStringList const&, QString const&, KGuiItem const&, KGuiItem const&, QString const&, QFlags<KMessageBox::Option>) ()
   from /usr/lib/libkdeui.so.5
#42 0x04813a27 in KMessageBox::warningYesNo(QWidget*, QString const&, QString const&, KGuiItem const&, KGuiItem const&, QString const&, QFlags<KMessageBox::Option>) () from /usr/lib/libkdeui.so.5
#43 0x038aedfe in KpkTransaction::errorCode(PackageKit::Client::ErrorType, QString const&) () from /usr/lib/libkpackagekitlib.so
#44 0x038b041e in KpkTransaction::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkpackagekitlib.so
#45 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#46 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#47 0x03871a7a in PackageKit::Transaction::errorCode(PackageKit::Client::ErrorType, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#48 0x038789c2 in PackageKit::TransactionPrivate::errorCode(QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#49 0x03878c6c in PackageKit::TransactionPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#50 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#51 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#52 0x0387a71a in PackageKit::TransactionProxy::ErrorCode(QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#53 0x0387b279 in PackageKit::TransactionProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#54 0x00bcfa3c in ?? () from /usr/lib/libQtDBus.so.4
#55 0x00bd79a8 in ?? () from /usr/lib/libQtDBus.so.4
#56 0x035bff96 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#57 0x03db4b24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#58 0x03dbc281 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#59 0x048838cb in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#60 0x035afd73 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#61 0x035b0972 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#62 0x035b0b2e in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#63 0x035daf40 in ?? () from /usr/lib/libQtCore.so.4
#64 0x0076af88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#65 0x0076e8b8 in ?? () from /lib/libglib-2.0.so.0
#66 0x0076e9e4 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#67 0x035dab6d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#68 0x03e54356 in ?? () from /usr/lib/libQtGui.so.4
#69 0x035ae2aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#70 0x035ae70a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#71 0x0429ec84 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#72 0x038ae360 in KpkTransaction::repoSignatureRequired(PackageKit::Client::SignatureInfo) () from /usr/lib/libkpackagekitlib.so
#73 0x038b0293 in KpkTransaction::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkpackagekitlib.so
#74 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#75 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#76 0x03871754 in PackageKit::Transaction::repoSignatureRequired(PackageKit::Client::SignatureInfo) () from /usr/lib/libpackagekit-qt.so.12
#77 0x038785f3 in PackageKit::TransactionPrivate::repoSignatureRequired(QString const&, QString const&, QString const&, QString const&, QString const&, QString const&, QString const&, QString const&)
    () from /usr/lib/libpackagekit-qt.so.12
#78 0x03878e0e in PackageKit::TransactionPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#79 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#80 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#81 0x0387a3c4 in PackageKit::TransactionProxy::RepoSignatureRequired(QString const&, QString const&, QString const&, QString const&, QString const&, QString const&, QString const&, QString const&)
    () from /usr/lib/libpackagekit-qt.so.12
#82 0x0387b3ef in PackageKit::TransactionProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#83 0x00bcfa3c in ?? () from /usr/lib/libQtDBus.so.4
#84 0x00bd79a8 in ?? () from /usr/lib/libQtDBus.so.4
#85 0x035bff96 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#86 0x03db4b24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#87 0x03dbc281 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#88 0x048838cb in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#89 0x035afd73 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#90 0x035b0972 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#91 0x035b0b2e in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#92 0x035daf40 in ?? () from /usr/lib/libQtCore.so.4
#93 0x0076af88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#94 0x0076e8b8 in ?? () from /lib/libglib-2.0.so.0
#95 0x0076e9e4 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#96 0x035dab6d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#97 0x03e54356 in ?? () from /usr/lib/libQtGui.so.4
#98 0x035ae2aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#99 0x035ae70a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#100 0x0429ec84 in QDialog::exec() () from /usr/lib/libQtGui.so.4
#101 0x00b8182c in ?? () from /usr/lib/kde4/kcm_kpk_update.so
#102 0x00b81f7d in ?? () from /usr/lib/kde4/kcm_kpk_update.so
#103 0x00b7ff71 in ?? () from /usr/lib/kde4/kcm_kpk_update.so
#104 0x050e110a in KCModuleProxy::save() () from /usr/lib/libkutils.so.4
#105 0x050dc498 in ?? () from /usr/lib/libkutils.so.4
#106 0x050de443 in KCMultiDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkutils.so.4
#107 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#108 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#109 0x047fab98 in KDialog::applyClicked() () from /usr/lib/libkdeui.so.5
#110 0x047fd0d7 in KDialog::slotButtonClicked(int) () from /usr/lib/libkdeui.so.5
#111 0x047feefc in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#112 0x048b0c5b in KPageDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#113 0x050de38b in KCMultiDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkutils.so.4
#114 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#115 0x035c6843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#116 0x035c87e4 in QSignalMapper::mapped(int) () from /usr/lib/libQtCore.so.4
#117 0x035c908e in QSignalMapper::map(QObject*) () from /usr/lib/libQtCore.so.4
#118 0x035c926f in QSignalMapper::map() () from /usr/lib/libQtCore.so.4
#119 0x035c9a4b in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#120 0x035c5c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#121 0x035c6059 in QMetaObject::activate(QObject*, QMetaObject const*, int, int, void**) () from /usr/lib/libQtCore.so.4
#122 0x044412a2 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#123 0x04167b0a in ?? () from /usr/lib/libQtGui.so.4
#124 0x04169755 in ?? () from /usr/lib/libQtGui.so.4
#125 0x041699f1 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#126 0x03e09d6f in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#127 0x041679af in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#128 0x0421202e in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#129 0x03db4b24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#130 0x03dbca90 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#131 0x048838cb in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#132 0x035afd73 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#133 0x03dbbb97 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib/libQtGui.so.4
#134 0x03e2a4b8 in ?? () from /usr/lib/libQtGui.so.4
#135 0x03e2991d in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#136 0x03e54c92 in ?? () from /usr/lib/libQtGui.so.4
#137 0x0076af88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#138 0x0076e8b8 in ?? () from /lib/libglib-2.0.so.0
#139 0x0076e9e4 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#140 0x035dab6d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#141 0x03e54356 in ?? () from /usr/lib/libQtGui.so.4
#142 0x035ae2aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#143 0x035ae70a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#144 0x035b0bf7 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#145 0x03db49a8 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#146 0x0804cd6b in _start ()

Reported using DrKonqi