Application that crashed: konqueror
Version of the application: 4.3.2 (KDE 4.3.2)
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-127.fc12.x86_64 x86_64

What I was doing when the application crashed:
Ctrl+Tab Crash on Konqueror

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd89eef3840 (LWP 2080))]

Thread 4 (Thread 0x7fd88214c710 (LWP 2081)):
#0  0x00007fd89c1483b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fd89c3b3d42 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x00007fd89c3a9dda in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007fd89c3b2d25 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007fd89c143a3a in start_thread () from /lib64/libpthread.so.0
#5  0x00007fd89998ff3d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd881545710 (LWP 2082)):
#0  0x00007fd89c1483b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fd89c3b3d42 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x00007fd89c3a9dda in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007fd89c3b2d25 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007fd89c143a3a in start_thread () from /lib64/libpthread.so.0
#5  0x00007fd89998ff3d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd880b44710 (LWP 2083)):
#0  0x00007fd89c1483b9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fd89c3b3d42 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x00007fd89c3a9dda in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007fd89c3b2d25 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007fd89c143a3a in start_thread () from /lib64/libpthread.so.0
#5  0x00007fd89998ff3d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd89eef3840 (LWP 2080)):
[KCrash Handler]
#5  0x00007fd89bb20bc1 in QTabWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQtGui.so.4
#6  0x00007fd89d3e6685 in KTabWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#7  0x00007fd89ea6ea85 in KConfigGroup::writeEntry(QString const&, QStringList const&, QFlags<KConfigBase::WriteConfigFlag>) () from /usr/lib64/libkdeinit4_konqueror.so
#8  0x00007fd89c4ad08c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#9  0x00007fd89ea63a3a in KConfigGroup::writeEntry(QString const&, QStringList const&, QFlags<KConfigBase::WriteConfigFlag>) () from /usr/lib64/libkdeinit4_konqueror.so
#10 0x00007fd89c497187 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#11 0x00007fd89b70762c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#12 0x00007fd89b70f3d9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x00007fd89d2f5786 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#14 0x00007fd89c497e6c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#15 0x00007fd89b79693a in ?? () from /usr/lib64/libQtGui.so.4
#16 0x00007fd89b798ed0 in ?? () from /usr/lib64/libQtGui.so.4
#17 0x00007fd89b772484 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#18 0x00007fd89b79a85c in ?? () from /usr/lib64/libQtGui.so.4
#19 0x00007fd897aa022e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#20 0x00007fd897aa3c18 in ?? () from /lib64/libglib-2.0.so.0
#21 0x00007fd897aa3d3a in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#22 0x00007fd89c4c01e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#23 0x00007fd89b79a00e in ?? () from /usr/lib64/libQtGui.so.4
#24 0x00007fd89c496772 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#25 0x00007fd89c496b44 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#26 0x00007fd89c498cd9 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#27 0x00007fd89ead74c3 in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#28 0x00007fd8998d0b1d in __libc_start_main () from /lib64/libc.so.6
#29 0x0000000000400759 in _start ()

Reported using DrKonqi