Version:           4.2.4-0u (using KDE 4.2.4)
OS:                Linux
Installed from:    Ubuntu Packages

This backtrace appears to be of no use. This is probably because your packages are built in a way which prevents creation of proper backtraces, or the stack frame was seriously corrupted in the crash.  (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread 0xb530b730 (LWP 5694)] 0xb7f0c424 in __kernel_vsyscall () [Current thread is 0 (process 5694)]  Thread 1 (Thread 0xb530b730 (LWP 5694)): #0  0xb7f0c424 in __kernel_vsyscall () #1  0xb6744780 in nanosleep () from /lib/tls/i686/cmov/libc.so.6 #2  0xb67445be in sleep () from /lib/tls/i686/cmov/libc.so.6 #3  0xb7cc0d82 in KCrash::startDrKonqi (argv=0xbfb286c4, argc=17) at /build/buildd/kde4libs-4.2.4/kdeui/util/kcrash.cpp:412 #4  0xb7cc1744 in KCrash::defaultCrashHandler (sig=11) at /build/buildd/kde4libs-4.2.4/kdeui/util/kcrash.cpp:337 #5  <signal handler called> #6  0xb7e10bba in KWin::WindowPaintData::WindowPaintData () from /usr/lib/libkwineffects.so.1 #7  0xb2e49147 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #8  0xb2e49989 in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #9  0xb2e4fe5d in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #10 0xb7ed95cf in ?? () from /usr/lib/libkdeinit4_kwin.so #11 0xb7e0f3b6 in KWin::Effect::paintScreen () from /usr/lib/libkwineffects.so.1 #12 0xb7ed95cf in ?? () from /usr/lib/libkdeinit4_kwin.so #13 0xb7e0f3b6 in KWin::Effect::paintScreen () from /usr/lib/libkwineffects.so.1 #14 0xb7ed95cf in ?? () from /usr/lib/libkdeinit4_kwin.so #15 0xb2e4498d in ?? () from /usr/lib/kde4/kwin4_effect_builtins.so #16 0xb7ed95cf in ?? () from /usr/lib/libkdeinit4_kwin.so #17 0xb7ec56e0 in ?? () from /usr/lib/libkdeinit4_kwin.so #18 0xb7ed168a in ?? () from /usr/lib/libkdeinit4_kwin.so #19 0xb7ec09d6 in ?? () from /usr/lib/libkdeinit4_kwin.so #20 0xb7e5bbad in ?? () from /usr/lib/libkdeinit4_kwin.so #21 0xb6cabca8 in QMetaObject::activate (sender=0x8e74fa4, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3069 #22 0xb6cac932 in QMetaObject::activate (sender=0x8e74fa4, m=0xb6d88904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3143 #23 0xb6ce7717 in QTimer::timeout (this=0x8e74fa4) at .moc/release-shared/moc_qtimer.cpp:128 #24 0xb6cb16fe in QTimer::timerEvent (this=0x8e74fa4, e=0xbfb29c2c) at kernel/qtimer.cpp:261 #25 0xb6ca615f in QObject::event (this=0x8e74fa4, e=0xbfb29c2c) at kernel/qobject.cpp:1082 #26 0xb6f43e9c in QApplicationPrivate::notify_helper (this=0x8da4ac0, receiver=0x8e74fa4, e=0xbfb29c2c) at kernel/qapplication.cpp:4084 #27 0xb6f4c19e in QApplication::notify (this=0xbfb29f08, receiver=0x8e74fa4, e=0xbfb29c2c) at kernel/qapplication.cpp:3631 #28 0xb7c50e0d in KApplication::notify (this=0xbfb29f08, receiver=0x8e74fa4, event=0xbfb29c2c) at /build/buildd/kde4libs-4.2.4/kdeui/kernel/kapplication.cpp:307 #29 0xb7e712cd in ?? () from /usr/lib/libkdeinit4_kwin.so #30 0xb6c95a3b in QCoreApplication::notifyInternal (this=0xbfb29f08, receiver=0x8e74fa4, event=0xbfb29c2c) at kernel/qcoreapplication.cpp:602 #31 0xb6cc4d71 in QTimerInfoList::activateTimers (this=0x8da6d9c) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213 #32 0xb6cc14e0 in timerSourceDispatch (source=0x8da6d68) at kernel/qeventdispatcher_glib.cpp:164 #33 0xb6384b88 in IA__g_main_context_dispatch (context=0x8da6ca8) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814 #34 0xb63880eb in g_main_context_iterate (context=0x8da6ca8, block=1, dispatch=1, self=0x8da4cb8) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448 #35 0xb6388268 in IA__g_main_context_iteration (context=0x8da6ca8, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511 #36 0xb6cc1438 in QEventDispatcherGlib::processEvents (this=0x8d92620, flags={i = -1078813272}) at kernel/qeventdispatcher_glib.cpp:323 #37 0xb6fe5365 in QGuiEventDispatcherGlib::processEvents (this=0x8d92620, flags={i = -1078813224}) at kernel/qguieventdispatcher_glib.cpp:202 #38 0xb6c9406a in QEventLoop::processEvents (this=0xbfb29e50, flags={i = -1078813160}) at kernel/qeventloop.cpp:149 #39 0xb6c944aa in QEventLoop::exec (this=0xbfb29e50, flags={i = -1078813096}) at kernel/qeventloop.cpp:200 #40 0xb6c96959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880 #41 0xb6f43d17 in QApplication::exec () at kernel/qapplication.cpp:3553 #42 0xb7e75312 in kdemain () from /usr/lib/libkdeinit4_kwin.so #43 0x08048732 in _start () #0  0xb7f0c424 in __kernel_vsyscall ()