Application: kded4 (4.14.38)
KDE Platform Version: 4.14.38
Qt Version: 4.8.7
Operating System: Linux 4.9.67 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:

Only in safe mode a program can be started. In normal mode all have segment fault

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5ca4aaf3c0 (LWP 2643))]

Thread 4 (Thread 0x7f5c78f71700 (LWP 2658)):
#0  0x00007f5ca15e741b in poll () at /lib64/libc.so.6
#1  0x00007f5c9dd195f1 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f5c9dd196fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f5ca34c4d7e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#4  0x00007f5ca3495164 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#5  0x00007f5ca3495476 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007f5ca3392146 in QThread::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007f5ca3476763 in  () at /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007f5ca33948a1 in  () at /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007f5ca30f1565 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5ca15f30af in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f5c79772700 (LWP 2657)):
#0  0x00007f5c9dd5cfa4 in g_mutex_unlock () at /usr/lib64/libglib-2.0.so.0
#1  0x00007f5c9dd194bd in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f5c9dd196fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f5ca34c4d7e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#4  0x00007f5ca3495164 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#5  0x00007f5ca3495476 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007f5ca3392146 in QThread::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007f5ca33948a1 in  () at /usr/lib64/qt/lib/libQtCore.so.4
#8  0x00007f5ca30f1565 in start_thread () at /lib64/libpthread.so.0
#9  0x00007f5ca15f30af in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f5c79f73700 (LWP 2656)):
#0  0x00007f5ca15e741b in poll () at /lib64/libc.so.6
#1  0x00007f5c9dd195f1 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f5c9dd196fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f5ca34c4d7e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#4  0x00007f5ca3495164 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#5  0x00007f5ca3495476 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#6  0x00007f5ca3392146 in QThread::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#7  0x00007f5c854d1d87 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#8  0x00007f5ca33948a1 in  () at /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007f5ca30f1565 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f5ca15f30af in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f5ca4aaf3c0 (LWP 2643)):
[KCrash Handler]
#6  0x00007f5c7a304ee0 in NetworkManager::Setting::type() const () at /usr/lib64/libNetworkManagerQt.so.1
#7  0x00007f5c8040f472 in  () at /usr/lib64/kde4/kded_networkmanagement.so
#8  0x00007f5c80411928 in SecretAgent::processNext() () at /usr/lib64/kde4/kded_networkmanagement.so
#9  0x00007f5c804123fe in SecretAgent::GetSecrets(QMap<QString, QMap<QString, QVariant> > const&, QDBusObjectPath const&, QString const&, QStringList const&, unsigned int) () at /usr/lib64/kde4/kded_networkmanagement.so
#10 0x00007f5c7a28fda3 in SecretAgentAdaptor::GetSecrets(QMap<QString, QMap<QString, QVariant> > const&, QDBusObjectPath const&, QString const&, QStringList const&, unsigned int) () at /usr/lib64/libNetworkManagerQt.so.1
#11 0x00007f5c7a28feeb in  () at /usr/lib64/libNetworkManagerQt.so.1
#12 0x00007f5c7a290073 in SecretAgentAdaptor::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libNetworkManagerQt.so.1
#13 0x00007f5ca3826c19 in  () at /usr/lib64/qt/lib/libQtDBus.so.4
#14 0x00007f5ca38281c8 in  () at /usr/lib64/qt/lib/libQtDBus.so.4
#15 0x00007f5ca382890a in  () at /usr/lib64/qt/lib/libQtDBus.so.4
#16 0x00007f5ca3828bbb in  () at /usr/lib64/qt/lib/libQtDBus.so.4
#17 0x00007f5ca34af8e1 in QObject::event(QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#18 0x00007f5ca25fcfac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#19 0x00007f5ca2603d04 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#20 0x00007f5ca44d70aa in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#21 0x00007f5ca3496a7e in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#22 0x00007f5ca3499912 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/qt/lib/libQtCore.so.4
#23 0x00007f5ca34c4bee in  () at /usr/lib64/qt/lib/libQtCore.so.4
#24 0x00007f5c9dd19467 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#25 0x00007f5c9dd19678 in  () at /usr/lib64/libglib-2.0.so.0
#26 0x00007f5c9dd196fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#27 0x00007f5ca34c4d56 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#28 0x00007f5ca269fe87 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#29 0x00007f5ca3495164 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#30 0x00007f5ca3495476 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#31 0x00007f5ca349ab0c in QCoreApplication::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#32 0x00007f5c8bf3b3ff in kdemain () at /usr/lib64/libkdeinit4_kded4.so
#33 0x0000000000408dad in  ()
#34 0x00000000004061a8 in  ()
#35 0x00007f5ca14fe02a in __libc_start_main () at /lib64/libc.so.6
#36 0x000000000040671a in _start ()

Reported using DrKonqi