Application: konqueror (4.8.4 (4.8.4))
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.2
Operating System: Linux 3.4.4-5.fc17.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
I pressed right-click on the back button. Not sure if I've done this before or not. Using Fedora 17. Fresh install last night using the network install. I selected majority of packages by hand, though most/everything was chosen by just selecting the category. i.e. I just clicked "I want KDE". I didn't go through and select and de-select other things.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fde74611880 (LWP 16648))]

Thread 2 (Thread 0x7fde5bfff700 (LWP 17477)):
#0  0x00007fff96fff827 in clock_gettime ()
#1  0x00000034f040410d in clock_gettime () from /lib64/librt.so.1
#2  0x00000034fa8d14a4 in ?? () from /lib64/libQtCore.so.4
#3  0x00000034fa9a4d0d in ?? () from /lib64/libQtCore.so.4
#4  0x00000034fa9a5053 in ?? () from /lib64/libQtCore.so.4
#5  0x00000034fa9a3bcc in ?? () from /lib64/libQtCore.so.4
#6  0x00000034fa9a3c75 in ?? () from /lib64/libQtCore.so.4
#7  0x00000034ef0471ef in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#8  0x00000034ef0478db in ?? () from /lib64/libglib-2.0.so.0
#9  0x00000034ef047ad4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#10 0x00000034fa9a4506 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#11 0x00000034fa97513f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#12 0x00000034fa9753c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#13 0x00000034fa878650 in QThread::exec() () from /lib64/libQtCore.so.4
#14 0x0000003503fa2c0e in ?? () from /lib64/libkio.so.5
#15 0x00000034fa87b5eb in ?? () from /lib64/libQtCore.so.4
#16 0x00000034f0007d14 in start_thread () from /lib64/libpthread.so.0
#17 0x00000034ef4f199d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fde74611880 (LWP 16648)):
[KCrash Handler]
#5  0x00000034ff53c195 in KXMLGUIClient::actionCollection() const () from /lib64/libkdeui.so.5
#6  0x00000034ff52f92c in KToolBar::Private::findAction(QString const&, KXMLGUIClient**) const () from /lib64/libkdeui.so.5
#7  0x00000034ff52ffc7 in KToolBar::Private::slotContextAboutToShow() () from /lib64/libkdeui.so.5
#8  0x00000034fa98cb9f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#9  0x00000034fdc006a0 in QMenu::popup(QPoint const&, QAction*) () from /lib64/libQtGui.so.4
#10 0x00000034fdc01174 in QMenu::exec(QPoint const&, QAction*) () from /lib64/libQtGui.so.4
#11 0x00000034ff52ff32 in KToolBar::contextMenuEvent(QContextMenuEvent*) () from /lib64/libkdeui.so.5
#12 0x00000034fd81989a in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#13 0x00000034fdc37f33 in QToolBar::event(QEvent*) () from /lib64/libQtGui.so.4
#14 0x00000034fd7ca37c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#15 0x00000034fd7ced65 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#16 0x00000034ff446756 in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#17 0x00000034fa9763ee in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#18 0x00000034fd8458f1 in ?? () from /lib64/libQtGui.so.4
#19 0x00000034fd844621 in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#20 0x00000034fd86a60c in ?? () from /lib64/libQtGui.so.4
#21 0x00000034ef0476e5 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#22 0x00000034ef047a18 in ?? () from /lib64/libglib-2.0.so.0
#23 0x00000034ef047ad4 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#24 0x00000034fa9a44e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#25 0x00000034fd86a2ee in ?? () from /lib64/libQtGui.so.4
#26 0x00000034fa97513f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#27 0x00000034fa9753c8 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#28 0x00000034fa97a1b8 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#29 0x00000034f94af5e2 in kdemain () from /lib64/libkdeinit4_konqueror.so
#30 0x00000034ef421735 in __libc_start_main () from /lib64/libc.so.6
#31 0x0000000000400851 in _start ()

Reported using DrKonqi