Application that crashed: konqueror
Version of the application: 4.3.1 (KDE 4.3.1)
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-ARCH i686

What I was doing when the application crashed:
I had many tabs open on konqueror (at least 15) then I started to close each quickly and when I closed, the fifth tab, konqureor crashed

 -- Backtrace:
Application: Konqueror (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 1739)]

Thread 2 (Thread 0xaecffb70 (LWP 1922)):
#0  0xb8036424 in __kernel_vsyscall ()
#1  0xb7dd8ec2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7e36fcf in QWaitCondition::wait (this=0xa4995f8, mutex=0xa4995f4, time=30000) at thread/qwaitcondition_unix.cpp:85
#3  0xb7e2c81e in QThreadPoolThread::run (this=0xa499628) at concurrent/qthreadpool.cpp:140
#4  0xb7e36032 in QThreadPrivate::start (arg=0xa499628) at thread/qthread_unix.cpp:188
#5  0xb7dd465c in start_thread () from /lib/libpthread.so.0
#6  0xb686f1fe in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb5e67700 (LWP 1739)):
[KCrash Handler]
#6  0xb699fd6c in __dynamic_cast () from /usr/lib/libstdc++.so.6
#7  0xb390f4d1 in KonqMainWindow::slotAddClosedUrl (this=0xa0fbd38, tab=0xd4dd134) at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqmainwindow.cpp:5186
#8  0xb391d550 in KonqMainWindow::qt_metacall (this=0xa0fbd38, _c=QMetaObject::InvokeMetaMethod, _id=44, _a=0xbf87d2a8)
    at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqmainwindow.moc:379
#9  0xb7f3a9ac in QMetaObject::activate (sender=0xa14d718, from_signal_index=<value optimized out>, to_signal_index=10, argv=0x6e0069) at kernel/qobject.cpp:3112
#10 0xb7f3b5e2 in QMetaObject::activate (sender=0xa14d718, m=0xb3975348, local_signal_index=0, argv=0xbf87d2a8) at kernel/qobject.cpp:3186
#11 0xb38c0fb3 in KonqViewManager::aboutToRemoveTab (this=0xa14d718, _t1=0xd4dd134) at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqviewmanager.moc:106
#12 0xb38c1d67 in KonqViewManager::removeTab (this=0xa14d718, currentFrame=0xd4dd134, emitAboutToRemoveSignal=true)
    at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqviewmanager.cpp:389
#13 0xb38f5475 in KonqMainWindow::slotRemoveTabPopupDelayed (this=0xa0fbd38) at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqmainwindow.cpp:2559
#14 0xb391d858 in KonqMainWindow::qt_metacall (this=0xa0fbd38, _c=QMetaObject::InvokeMetaMethod, _id=82, _a=0xbf87d44c)
    at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqmainwindow.moc:417
#15 0xb7f3a9ac in QMetaObject::activate (sender=0xde41cf0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x6e0069) at kernel/qobject.cpp:3112
#16 0xb7f3b5e2 in QMetaObject::activate (sender=0xde41cf0, m=0xb8015268, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3186
#17 0xb7f3fa37 in QSingleShotTimer::timeout (this=0xde41cf0) at .moc/release-shared/qtimer.moc:76
#18 0xb7f3fb4c in QSingleShotTimer::timerEvent (this=0xde41cf0) at kernel/qtimer.cpp:298
#19 0xb7f34b5f in QObject::event (this=0xde41cf0, e=0xbf87d8e0) at kernel/qobject.cpp:1074
#20 0xb6afa964 in QApplicationPrivate::notify_helper (this=0xa073c80, receiver=0xde41cf0, e=0xbf87d8e0) at kernel/qapplication.cpp:4056
#21 0xb6b0204c in QApplication::notify (this=0xbf87dce4, receiver=0xde41cf0, e=0xbf87d8e0) at kernel/qapplication.cpp:3603
#22 0xb753e46a in KApplication::notify () from /usr/lib/libkdeui.so.5
#23 0xb7f24fcb in QCoreApplication::notifyInternal (this=0xbf87dce4, receiver=0xde41cf0, event=0xbf87d8e0) at kernel/qcoreapplication.cpp:610
#24 0xb7f5279e in QTimerInfoList::activateTimers (this=0xa0769c4) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#25 0xb7f4f780 in timerSourceDispatch (source=0xa076990) at kernel/qeventdispatcher_glib.cpp:165
#26 0xb6704d98 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb67083e0 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#28 0xb6708513 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb7f4f6cc in QEventDispatcherGlib::processEvents (this=0x9fbe330, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#30 0xb6b98695 in QGuiEventDispatcherGlib::processEvents (this=0x9fbe330, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#31 0xb7f23579 in QEventLoop::processEvents (this=0xbf87dba4, flags=) at kernel/qeventloop.cpp:149
#32 0xb7f239ca in QEventLoop::exec (this=0xbf87dba4, flags={i = 0}) at kernel/qeventloop.cpp:201
#33 0xb7f25e3f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0xb6afa7e7 in QApplication::exec () at kernel/qapplication.cpp:3525
#35 0xb394fdff in kdemain (argc=2, argv=0xa02d588) at /home/jofko/kdemod/core/kdebase/src/kdebase-4.3.1/apps/konqueror/src/konqmain.cpp:271
#36 0x0804de42 in _start ()

Reported using DrKonqi