Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
i was configuring mail. After that, kmail folder name was pin'ed on the windows list bar and i could not shutdown it. System monitor did not display any kmail processes

 -- Backtrace:
Application: Plasmos darbo aplinka (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76fa700 (LWP 2207))]

Thread 2 (Thread 0xa9a69b70 (LWP 2210)):
#0  0x00e11422 in __kernel_vsyscall ()
#1  0x005a7e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x00c1178d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00954e67 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x00e8c922 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0x00953e32 in ?? () from /usr/lib/libQtCore.so.4
#6  0x005a380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x00c047ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb76fa700 (LWP 2207)):
[KCrash Handler]
#6  0x04f8d6ee in Plasma::Applet::flushPendingConstraintsEvents() () from /usr/lib/libplasma.so.3
#7  0x04fb17dd in Plasma::Corona::loadLayout(QString const&) () from /usr/lib/libplasma.so.3
#8  0x04fb28be in Plasma::Corona::initializeLayout(QString const&) () from /usr/lib/libplasma.so.3
#9  0x027411d6 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#10 0x027414da in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#11 0x02741733 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#12 0x00a5a263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x00a5aec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x00a5f387 in ?? () from /usr/lib/libQtCore.so.4
#15 0x00a5f49c in ?? () from /usr/lib/libQtCore.so.4
#16 0x00a543bf in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x01977f54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x0197f67c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x011cfbfa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x00a446cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x00a717ce in ?? () from /usr/lib/libQtCore.so.4
#22 0x00a6f0e0 in ?? () from /usr/lib/libQtCore.so.4
#23 0x00cb4e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x00cb8720 in ?? () from /lib/libglib-2.0.so.0
#25 0x00cb8853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00a6f02c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#27 0x01a18be5 in ?? () from /usr/lib/libQtGui.so.4
#28 0x00a42c79 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00a430ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x00a4553f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#31 0x01977dd7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#32 0x0272480d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#33 0x0804dde1 in _start ()

Reported using DrKonqi