Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.2
Operating System: Linux 2.6.31-2-generic i686
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
I had two separate Konsole windows open.  Crash happened just as I typed 'exit' to close one.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb8033930 (LWP 2808))]

Thread 2 (Thread 0xacf6db90 (LWP 2810)):
#0  0x0077a422 in __kernel_vsyscall ()
#1  0x0013f0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x00c3755d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00de8df7 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x01b4f8e2 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0x00de7dc2 in ?? () from /usr/lib/libQtCore.so.4
#6  0x0013b4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x00c2870e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb8033930 (LWP 2808)):
[KCrash Handler]
#6  0x080bc2aa in TaskManager::GroupManager::manualSortingRequest(TaskManager::AbstractGroupableItem*, int) () from /usr/lib/libtaskmanager.so.4
#7  0x080ba324 in TaskManager::AbstractGroupingStrategy::closeGroup(TaskManager::TaskGroup*) () from /usr/lib/libtaskmanager.so.4
#8  0x080c1c3d in ?? () from /usr/lib/libtaskmanager.so.4
#9  0x080c2911 in ?? () from /usr/lib/libtaskmanager.so.4
#10 0x00eee343 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#11 0x00eeefa2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x080d5633 in TaskManager::TaskGroup::itemRemoved(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#13 0x080d5e5b in TaskManager::TaskGroup::remove(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#14 0x080bce05 in ?? () from /usr/lib/libtaskmanager.so.4
#15 0x080bf43b in TaskManager::GroupManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#16 0x00eee343 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x00eeefa2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x080d9033 in TaskManager::TaskManager::taskRemoved(KSharedPtr<TaskManager::Task>) () from /usr/lib/libtaskmanager.so.4
#19 0x080dadb2 in TaskManager::TaskManager::windowRemoved(unsigned long) () from /usr/lib/libtaskmanager.so.4
#20 0x080dc6ff in TaskManager::TaskManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#21 0x00eee343 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#22 0x00eeefa2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#23 0x012ee703 in KWindowSystem::windowRemoved(unsigned long) () from /usr/lib/libkdeui.so.5
#24 0x012f1966 in ?? () from /usr/lib/libkdeui.so.5
#25 0x01300665 in NETRootInfo::update(unsigned long const*) () from /usr/lib/libkdeui.so.5
#26 0x01300997 in NETRootInfo::event(_XEvent*, unsigned long*, int) () from /usr/lib/libkdeui.so.5
#27 0x012f1c01 in ?? () from /usr/lib/libkdeui.so.5
#28 0x0119dd76 in KApplication::x11EventFilter(_XEvent*) () from /usr/lib/libkdeui.so.5
#29 0x0187598a in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0x060549d0 in ?? () from /usr/lib/libQtGui.so.4
#31 0x06065f75 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#32 0x060940c2 in ?? () from /usr/lib/libQtGui.so.4
#33 0x006d7bc8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0x006db470 in ?? () from /usr/lib/libglib-2.0.so.0
#35 0x006db5a3 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0x00f0310c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0x060937a5 in ?? () from /usr/lib/libQtGui.so.4
#38 0x00ed6d59 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#39 0x00ed71aa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#40 0x00ed961f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#41 0x05ff2ab7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#42 0x0185fa7d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804dd78 in _start ()

Reported using DrKonqi