Application: kcmshell4 (4.14.14)
KDE Platform Version: 4.14.21
Qt Version: 4.8.7
Operating System: Linux 4.4.14 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
Right-clicked on clock settings, selected Denver time zone and NTP sync option, chose north-america.pool.ntp.org, chose "Apply", app crashed and dumped traceback.

-- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4936fad780 (LWP 7839))]

Thread 3 (Thread 0x7f4912153700 (LWP 7841)):
#0  0x00007f49301fb858 in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f49301fbcd2 in g_main_loop_run () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f49249a8a56 in  () at /usr/lib64/libgio-2.0.so.0
#3  0x00007f49302211e5 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f4935597684 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f4933adeefd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f4912954700 (LWP 7840)):
#0  0x00007f4933ad330d in poll () at /lib64/libc.so.6
#1  0x00007f49301fb954 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f49301fba5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f49301fba99 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f49302211e5 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f4935597684 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f4933adeefd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f4936fad780 (LWP 7839)):
[KCrash Handler]
#6  0x0000000000000000 in  ()
#7  0x00007f4935953524 in QObject::connect(QObject const*, char const*, QObject const*, char const*, Qt::ConnectionType) () at /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007f493595b3ac in  () at /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007f493595b46e in QTimer::singleShot(int, QObject*, char const*) () at /usr/lib64/qt/lib/libQtCore.so.4
#10 0x00007f4918a9e283 in  () at /usr/lib64/kde4/kcm_clock.so
#11 0x00007f492531d3e7 in KCModuleProxy::save() () at /usr/lib64/libkcmutils.so.4
#12 0x00007f49253182e8 in  () at /usr/lib64/libkcmutils.so.4
#13 0x00007f4935950e30 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/qt/lib/libQtCore.so.4
#14 0x00007f4936a69bcf in KPushButton::authorized(KAuth::Action*) () at /usr/lib64/libkdeui.so.5
#15 0x00007f4935950e30 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/qt/lib/libQtCore.so.4
#16 0x00007f49350f4532 in QAbstractButton::clicked(bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#17 0x00007f4934e4c763 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#18 0x00007f4934e4d954 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#19 0x00007f4934e4da44 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#20 0x00007f4934ae64d0 in QWidget::event(QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#21 0x00007f4934a9348c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#22 0x00007f4934a9a0c3 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#23 0x00007f493699e8ea in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#24 0x00007f493593dc0d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#25 0x00007f4934a9975d in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib64/qt/lib/libQtGui.so.4
#26 0x00007f4934b10af9 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#27 0x00007f4934b0edf5 in QApplication::x11ProcessEvent(_XEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#28 0x00007f4934b36942 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#29 0x00007f49301fb787 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#30 0x00007f49301fb9b8 in  () at /usr/lib64/libglib-2.0.so.0
#31 0x00007f49301fba5c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#32 0x00007f493596c0ae in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#33 0x00007f4934b369e6 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#34 0x00007f493593c5d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#35 0x00007f493593c8e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#36 0x00007f4934f4704c in QDialog::exec() () at /usr/lib64/qt/lib/libQtGui.so.4
#37 0x00007f491e81c586 in kdemain () at /usr/lib64/libkdeinit4_kcmshell4.so
#38 0x0000000000408c21 in  ()
#39 0x00000000004099f7 in  ()
#40 0x000000000040a13a in  ()
#41 0x0000000000405952 in  ()
#42 0x00007f49339f87d0 in __libc_start_main () at /lib64/libc.so.6
#43 0x00000000004067b9 in _start ()

Reported using DrKonqi