Application: kcmshell4 (4.14.9)
KDE Platform Version: 4.14.9
Qt Version: 4.8.7
Operating System: Linux 4.0.4-3-desktop x86_64
Distribution: "openSUSE 20150609 (Tumbleweed) (x86_64)"

-- Information about the crash:
KNotify suddenly crashed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE beállítómodul (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f63f3e12780 (LWP 3008))]

Thread 2 (Thread 0x7f63d17a5700 (LWP 3018)):
#0  0x00007f63f145f4cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f63ee569e54 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f63ee56a18a in g_main_loop_run () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f63d1887426 in  () at /usr/lib64/libgio-2.0.so.0
#4  0x00007f63ee58ef55 in  () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f63f26f7484 in start_thread (arg=0x7f63d17a5700) at pthread_create.c:333
#6  0x00007f63f1467a4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f63f3e12780 (LWP 3008)):
[KCrash Handler]
#6  0x00007f63f1c483fd in QWidget::effectiveWinId() const (this=0x1e2b110) at ../../src/gui/kernel/qwidget.h:244
#7  0x00007f63f1c483fd in QWidget::effectiveWinId() const (this=0x1e2b110) at kernel/qwidget.cpp:2620
#8  0x00007f63f37a7af1 in KMessageBox::error(QWidget*, QString const&, QString const&, QFlags<KMessageBox::Option>) (parent=<optimized out>, text=..., caption=..., options=...) at /usr/src/debug/kdelibs-4.14.9/kdeui/dialogs/kmessagebox.cpp:821
#9  0x00007f63d7868592 in  () at /usr/lib64/kde4/kcm_clock.so
#10 0x00007f63e299d8e7 in KCModuleProxy::save() (this=this@entry=0x1320340) at /usr/src/debug/kdelibs-4.14.9/kutils/kcmoduleproxy.cpp:280
#11 0x00007f63e2999b98 in KCMultiDialogPrivate::apply() (this=<optimized out>) at /usr/src/debug/kdelibs-4.14.9/kutils/kcmultidialog.cpp:300
#12 0x00007f63f2aa43fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=0x1317520, m=m@entry=0x7f63f3c48880 <KPushButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd4436fb40) at kernel/qobject.cpp:3576
#13 0x00007f63f38f53bf in KPushButton::authorized(KAuth::Action*) (this=<optimized out>, _t1=0x1c8d800) at /usr/src/debug/kdelibs-4.14.9/build/kdeui/kpushbutton.moc:142
#14 0x00007f63f2aa43fa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x1317520, m=m@entry=0x7f63f26d91c0 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffd4436fc70) at kernel/qobject.cpp:3576
#15 0x00007f63f2254302 in QAbstractButton::clicked(bool) (this=this@entry=0x1317520, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#16 0x00007f63f1fb6e73 in QAbstractButtonPrivate::emitClicked() (this=this@entry=0x131d250) at widgets/qabstractbutton.cpp:548
#17 0x00007f63f1fb7fe3 in QAbstractButtonPrivate::click() (this=this@entry=0x131d250) at widgets/qabstractbutton.cpp:541
#18 0x00007f63f1fb80cc in QAbstractButton::mouseReleaseEvent(QMouseEvent*) (this=0x1317520, e=0x7ffd44370160) at widgets/qabstractbutton.cpp:1123
#19 0x00007f63f1c590fa in QWidget::event(QEvent*) (this=0x1317520, event=0x7ffd44370160) at kernel/qwidget.cpp:8389
#20 0x00007f63f1c06b5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x115a680, receiver=receiver@entry=0x1317520, e=e@entry=0x7ffd44370160) at kernel/qapplication.cpp:4565
#21 0x00007f63f1c0d1da in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd44370a60, receiver=receiver@entry=0x1317520, e=e@entry=0x7ffd44370160) at kernel/qapplication.cpp:4108
#22 0x00007f63f3833dfa in KApplication::notify(QObject*, QEvent*) (this=0x7ffd44370a60, receiver=0x1317520, event=0x7ffd44370160) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#23 0x00007f63f2a904ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd44370a60, receiver=receiver@entry=0x1317520, event=event@entry=0x7ffd44370160) at kernel/qcoreapplication.cpp:955
#24 0x00007f63f1c0c9d3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#25 0x00007f63f1c0c9d3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0x1317520, event=event@entry=0x7ffd44370160, alienWidget=alienWidget@entry=0x1317520, nativeWidget=nativeWidget@entry=0x12e3310, buttonDown=buttonDown@entry=0x7f63f26eb2e8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#26 0x00007f63f1c811bb in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0x12e3310, event=event@entry=0x7ffd443704d0) at kernel/qapplication_x11.cpp:4536
#27 0x00007f63f1c7fc2c in QApplication::x11ProcessEvent(_XEvent*) (this=0x7ffd44370a60, event=event@entry=0x7ffd443704d0) at kernel/qapplication_x11.cpp:3653
#28 0x00007f63f1ca6ad2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x115bd40, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#29 0x00007f63ee569c74 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#30 0x00007f63ee569ec8 in  () at /usr/lib64/libglib-2.0.so.0
#31 0x00007f63ee569f6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#32 0x00007f63f2abd2be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1143c30, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#33 0x00007f63f1ca6b86 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#34 0x00007f63f2a8f06f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd443708b0, flags=...) at kernel/qeventloop.cpp:149
#35 0x00007f63f2a8f365 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd443708b0, flags=...) at kernel/qeventloop.cpp:204
#36 0x00007f63f20acc5c in QDialog::exec() (this=0x12e3310) at dialogs/qdialog.cpp:562
#37 0x00007f63ddcad315 in kdemain () at /usr/lib64/libkdeinit4_kcmshell4.so
#38 0x0000000000408825 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) (argc=argc@entry=2, _name=_name@entry=0x1135458 "/usr/bin/kcmshell4", args=0x1135471 "\001", args@entry=0x113546b "clock", cwd=cwd@entry=0x0, envc=envc@entry=1, envs=<optimized out>, envs@entry=0x1135479 "DISPLAY=:0", reset_env=false, tty=tty@entry=0x0, avoid_loops=false, startup_id_str=startup_id_str@entry=0x40b026 "0") at /usr/src/debug/kdelibs-4.14.9/kinit/kinit.cpp:726
#39 0x00000000004096bb in handle_launcher_request(int, char const*) (sock=8, who=<optimized out>) at /usr/src/debug/kdelibs-4.14.9/kinit/kinit.cpp:1218
#40 0x0000000000409d26 in handle_requests(pid_t) (waitForPid=waitForPid@entry=0) at /usr/src/debug/kdelibs-4.14.9/kinit/kinit.cpp:1411
#41 0x000000000040591d in main(int, char**, char**) (argc=4, argv=<optimized out>, envp=0x7ffd44371540) at /usr/src/debug/kdelibs-4.14.9/kinit/kinit.cpp:1899

Reported using DrKonqi