Application: plasma-desktop (4.11.9)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

-- Information about the crash:
- What I was doing when the application crashed: marked "highlight windows" in TaskManager settings and clicked "Apply"

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5a02cf17c0 (LWP 2086))]

Thread 5 (Thread 0x7f59d829e700 (LWP 2088)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f59fb993ffb in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f59fb994039 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f59f6240182 in start_thread (arg=0x7f59d829e700) at pthread_create.c:312
#4  0x00007f5a025e130d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f5955c3e700 (LWP 2091)):
#0  0x00007f5a025d3fbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f59f5b2efe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59f5b2f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59ff1a97be in QEventDispatcherGlib::processEvents (this=0x7f59480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f59ff17b0af in QEventLoop::processEvents (this=this@entry=0x7f5955c3dde0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f59ff17b3a5 in QEventLoop::exec (this=this@entry=0x7f5955c3dde0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f59ff077c5f in QThread::exec (this=this@entry=0x22fdc40) at thread/qthread.cpp:537
#7  0x00007f59ff15c823 in QInotifyFileSystemWatcherEngine::run (this=0x22fdc40) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f59ff07a32f in QThreadPrivate::start (arg=0x22fdc40) at thread/qthread_unix.cpp:349
#9  0x00007f59f6240182 in start_thread (arg=0x7f5955c3e700) at pthread_create.c:312
#10 0x00007f5a025e130d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f5941b20700 (LWP 2093)):
#0  0x00007f59f5b2ea6c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f59f5b2ef7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59f5b2f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59ff1a97be in QEventDispatcherGlib::processEvents (this=0x7f593c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f59ff17b0af in QEventLoop::processEvents (this=this@entry=0x7f5941b1fde0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f59ff17b3a5 in QEventLoop::exec (this=this@entry=0x7f5941b1fde0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f59ff077c5f in QThread::exec (this=this@entry=0x2adcd50) at thread/qthread.cpp:537
#7  0x00007f59ff15c823 in QInotifyFileSystemWatcherEngine::run (this=0x2adcd50) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f59ff07a32f in QThreadPrivate::start (arg=0x2adcd50) at thread/qthread_unix.cpp:349
#9  0x00007f59f6240182 in start_thread (arg=0x7f5941b20700) at pthread_create.c:312
#10 0x00007f5a025e130d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f59382eb700 (LWP 2094)):
#0  socketNotifierSourcePrepare (timeout=0x7f59382eac24) at kernel/qeventdispatcher_glib.cpp:74
#1  0x00007f59f5b2e68d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f59f5b2ef03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f59f5b2f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f59ff1a97be in QEventDispatcherGlib::processEvents (this=0x7f59300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f59ff17b0af in QEventLoop::processEvents (this=this@entry=0x7f59382eade0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f59ff17b3a5 in QEventLoop::exec (this=this@entry=0x7f59382eade0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f59ff077c5f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:537
#8  0x00007f593b26d027 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#9  0x00007f59ff07a32f in QThreadPrivate::start (arg=0x33d5660) at thread/qthread_unix.cpp:349
#10 0x00007f59f6240182 in start_thread (arg=0x7f59382eb700) at pthread_create.c:312
#11 0x00007f5a025e130d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f5a02cf17c0 (LWP 2086)):
[KCrash Handler]
#6  0x00007f5956edfb50 in vtable for QDeclarativePrivate::QDeclarativeElement<MouseEventListener> () from /usr/lib/kde4/imports/org/kde/qtextracomponents/libqtextracomponentsplugin.so
#7  0x00007f59ff191994 in QObject::connect (sender=sender@entry=0x3b2a720, signal=signal@entry=0x7f5a02254b4e "2destroyed(QObject*)", receiver=receiver@entry=0x1dfa9a0, method=method@entry=0x7f5a02266607 "1onWidgetDestroyed(QObject*)", type=type@entry=Qt::AutoConnection) at kernel/qobject.cpp:2546
#8  0x00007f5a02195eeb in Plasma::ToolTipManager::registerWidget (this=this@entry=0x1dfa9a0, widget=widget@entry=0x3b2a720) at ../../plasma/tooltipmanager.cpp:209
#9  0x00007f5a0219604b in Plasma::ToolTipManager::setContent (this=0x1dfa9a0, widget=widget@entry=0x3b2a720, data=...) at ../../plasma/tooltipmanager.cpp:235
#10 0x00007f59db60633a in ToolTipProxy::updateToolTip (this=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/support/tooltip.cpp:252
#11 0x00007f59ff19087a in QMetaObject::activate (sender=sender@entry=0x251d800, m=m@entry=0x7f59db80bd00 <ToolTipProxy::staticMetaObject>, local_signal_index=local_signal_index@entry=5, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#12 0x00007f59db606897 in highlightWindowsChanged (this=0x251d800) at ./tooltip.moc:209
#13 setHighlightWindows (highlight=<optimized out>, this=0x251d800) at ../../../../../plasma/desktop/applets/tasks/support/tooltip.cpp:193
#14 ToolTipProxy::qt_metacall (this=0x251d800, _c=QMetaObject::WriteProperty, _id=5, _a=0x7fffe6325eb0) at ./tooltip.moc:156
#15 0x00007f5a00dcdcd9 in QDeclarativeVMEMetaObject::metaCall (this=0x257d580, c=QMetaObject::WriteProperty, _id=6, a=0x7fffe6325eb0) at qml/qdeclarativevmemetaobject.cpp:673
#16 0x00007f5a00e4258e in QDeclarativeCompiledBindingsPrivate::run (this=this@entry=0x250e030, instrIndex=<optimized out>, context=0x24fac00, error=error@entry=0x250d578, scope=0x251d800, output=0x251d800, storeFlags=...) at qml/qdeclarativecompiledbindings.cpp:1540
#17 0x00007f5a00e432c7 in QDeclarativeCompiledBindingsPrivate::run (this=this@entry=0x250e030, binding=0x250d538, flags=...) at qml/qdeclarativecompiledbindings.cpp:428
#18 0x00007f5a00e43520 in QDeclarativeCompiledBindings::qt_metacall (this=<optimized out>, c=<optimized out>, id=<optimized out>) at qml/qdeclarativecompiledbindings.cpp:380
#19 0x00007f59ff190a78 in QMetaObject::activate (sender=0x2506180, m=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3569
#20 0x00007f59ff191223 in QMetaObject::activate (sender=<optimized out>, signal_index=<optimized out>, argv=argv@entry=0x0) at kernel/qobject.cpp:3626
#21 0x00007f5a00dce07e in QDeclarativeVMEMetaObject::metaCall (this=0x24e73a0, c=QMetaObject::WriteProperty, _id=<optimized out>, a=0x7fffe6326590) at qml/qdeclarativevmemetaobject.cpp:564
#22 0x00007f59ff186496 in QMetaProperty::write (this=this@entry=0x7fffe6326610, object=object@entry=0x2506180, value=...) at kernel/qmetaobject.cpp:2364
#23 0x00007f59ff1963bf in QObject::setProperty (this=0x2506180, name=name@entry=0x7f59db606d2f "highlightWindows", value=...) at kernel/qobject.cpp:3728
#24 0x00007f59db600335 in Tasks::configChanged (this=0x2175130) at ../../../../../plasma/desktop/applets/tasks/tasks.cpp:454
#25 0x00007f5a020d64e8 in Plasma::AppletPrivate::configDialogFinished (this=0x2173fb0) at ../../plasma/applet.cpp:2152
#26 0x00007f5a020d6949 in Plasma::Applet::qt_static_metacall (_o=0x3b2a720, _id=35998542, _a=0x7f59ff259346, _c=<optimized out>) at ./applet.moc:198
#27 0x00007f59ff19087a in QMetaObject::activate (sender=sender@entry=0x41a28b0, m=m@entry=0x7f5a002403e0 <KDialog::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#28 0x00007f59ffda36f3 in KDialog::applyClicked (this=this@entry=0x41a28b0) at ./kdialog.moc:259
#29 0x00007f59ffda3d46 in KDialog::slotButtonClicked (this=0x41a28b0, button=8) at ../../kdeui/dialogs/kdialog.cpp:888
#30 0x00007f59ffda56bf in KDialog::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./kdialog.moc:166
#31 0x00007f59ff19087a in QMetaObject::activate (sender=sender@entry=0x41da700, m=m@entry=0x7f59ff4ddd60 <QSignalMapper::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffe6326a70) at kernel/qobject.cpp:3539
#32 0x00007f59ff197fbe in QSignalMapper::mapped (this=this@entry=0x41da700, _t1=8) at .moc/release-shared/moc_qsignalmapper.cpp:114
#33 0x00007f59ff1980c6 in QSignalMapper::map (this=0x41da700, sender=0x3aefac0) at kernel/qsignalmapper.cpp:266
#34 0x00007f59ff19087a in QMetaObject::activate (sender=sender@entry=0x3aefac0, m=m@entry=0x7f59fefe92a0 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fffe6326be0) at kernel/qobject.cpp:3539
#35 0x00007f59feb640d2 in QAbstractButton::clicked (this=this@entry=0x3aefac0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#36 0x00007f59fe8c79d3 in QAbstractButtonPrivate::emitClicked (this=this@entry=0x3a9f050) at widgets/qabstractbutton.cpp:548
#37 0x00007f59fe8c8b43 in QAbstractButtonPrivate::click (this=this@entry=0x3a9f050) at widgets/qabstractbutton.cpp:541
#38 0x00007f59fe8c8c2c in QAbstractButton::mouseReleaseEvent (this=0x3aefac0, e=0x7fffe63270d0) at widgets/qabstractbutton.cpp:1123
#39 0x00007f59fe56550a in QWidget::event (this=0x3aefac0, event=0x7fffe63270d0) at kernel/qwidget.cpp:8376
#40 0x00007f59fe515e2c in QApplicationPrivate::notify_helper (this=this@entry=0x1c83dd0, receiver=receiver@entry=0x3aefac0, e=e@entry=0x7fffe63270d0) at kernel/qapplication.cpp:4567
#41 0x00007f59fe51c5dd in QApplication::notify (this=this@entry=0x1c73c00, receiver=receiver@entry=0x3aefac0, e=e@entry=0x7fffe63270d0) at kernel/qapplication.cpp:4110
#42 0x00007f59ffe41baa in KApplication::notify (this=0x1c73c00, receiver=0x3aefac0, event=0x7fffe63270d0) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007f59ff17c4dd in QCoreApplication::notifyInternal (this=0x1c73c00, receiver=receiver@entry=0x3aefac0, event=event@entry=0x7fffe63270d0) at kernel/qcoreapplication.cpp:953
#44 0x00007f59fe51bd93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x3aefac0, event=event@entry=0x7fffe63270d0, alienWidget=alienWidget@entry=0x3aefac0, nativeWidget=nativeWidget@entry=0x41a28b0, buttonDown=buttonDown@entry=0x7f59feffb318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#46 0x00007f59fe5909cb in QETWidget::translateMouseEvent (this=this@entry=0x41a28b0, event=event@entry=0x7fffe6327450) at kernel/qapplication_x11.cpp:4634
#47 0x00007f59fe590269 in QApplication::x11ProcessEvent (this=0x1c73c00, event=event@entry=0x7fffe6327450) at kernel/qapplication_x11.cpp:3627
#48 0x00007f59fe5b7b02 in x11EventSourceDispatch (s=0x1c7fa70, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#49 0x00007f59f5b2ee04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f59f5b2f048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f59f5b2f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f59ff1a97a1 in QEventDispatcherGlib::processEvents (this=0x1c797f0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#53 0x00007f59fe5b7bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#54 0x00007f59ff17b0af in QEventLoop::processEvents (this=this@entry=0x7fffe6327820, flags=...) at kernel/qeventloop.cpp:149
#55 0x00007f59ff17b3a5 in QEventLoop::exec (this=this@entry=0x7fffe6327820, flags=...) at kernel/qeventloop.cpp:204
#56 0x00007f59ff180b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#57 0x00007f59fe51437c in QApplication::exec () at kernel/qapplication.cpp:3828
#58 0x00007f5a028e866c in kdemain (argc=1, argv=0x7fffe6327a78) at ../../../../plasma/desktop/shell/main.cpp:126
#59 0x00007f5a02507ec5 in __libc_start_main (main=0x4006e0 <main(int, char**)>, argc=1, argv=0x7fffe6327a78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe6327a68) at libc-start.c:287
#60 0x000000000040070e in _start ()

Reported using DrKonqi