Application: knotify4 (4.14.11)
KDE Platform Version: 4.14.11
Qt Version: 4.8.7
Operating System: Linux 4.1.6-desktop-5.mga6 x86_64
Distribution: "Mageia 6"

-- Information about the crash:
- What I was doing when the application crashed:
When I doing rebase in git and to solve conflicts use git mergetool, it starts kdiff3. On staring kdiff3 I always see this crash message.

The crash can be reproduced every time.

-- Backtrace:
Application: KNotify (knotify4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f315cc45800 (LWP 5983))]

Thread 2 (Thread 0x7f3143b14700 (LWP 5984)):
#0  0x00007f315912c9cc in __lll_lock_wait () at /lib64/libpthread.so.0
#1  0x00007f3159126aa6 in pthread_mutex_lock () at /lib64/libpthread.so.0
#2  0x00007f315cb1e6fa in tls_get_addr_tail () at /lib64/ld-linux-x86-64.so.2
#3  0x00007f315a101a30 in __cxa_get_globals () at /lib64/libstdc++.so.6
#4  0x00007f315a101959 in std::uncaught_exception() () at /lib64/libstdc++.so.6
#5  0x00007f315a4644a9 in qt_message(QtMsgType, char const*, __va_list_tag*) () at /lib64/libQtCore.so.4
#6  0x00007f315a464784 in qWarning(char const*, ...) () at /lib64/libQtCore.so.4
#7  0x00007f315a5a2643 in socketNotifierSourceCheck(_GSource*) () at /lib64/libQtCore.so.4
#8  0x00007f31573add31 in g_main_context_check () at /lib64/libglib-2.0.so.0
#9  0x00007f31573ae258 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#10 0x00007f31573ae3bc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#11 0x00007f315a5a2dee in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#12 0x00007f315a5732c1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#13 0x00007f315a5735d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#14 0x00007f315a46c289 in QThread::exec() () at /lib64/libQtCore.so.4
#15 0x00007f315a5543b3 in QInotifyFileSystemWatcherEngine::run() () at /lib64/libQtCore.so.4
#16 0x00007f315a46ea6c in QThreadPrivate::start(void*) () at /lib64/libQtCore.so.4
#17 0x00007f315912465d in start_thread () at /lib64/libpthread.so.0
#18 0x00007f3159db2f0d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f315cc45800 (LWP 5983)):
[KCrash Handler]
#6  0x00007f3159d52f60 in __memcpy_sse2_unaligned () at /lib64/libc.so.6
#7  0x00007f315a47175b in QByteArray::append(char const*) () at /lib64/libQtCore.so.4
#8  0x00007f31405a06ae in QMetaTypeIdQObject<QWidget*, 8>::qt_metatype_id() () at /lib64/libQt5Widgets.so.5
#9  0x00007f314053e857 in _GLOBAL__sub_I_qwidgetsvariant.cpp () at /lib64/libQt5Widgets.so.5
#10 0x00007f315cb1c0fa in call_init.part () at /lib64/ld-linux-x86-64.so.2
#11 0x00007f315cb1c20b in _dl_init () at /lib64/ld-linux-x86-64.so.2
#12 0x00007f315cb202a2 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#13 0x00007f315cb1bfa4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#14 0x00007f315cb1f9e1 in _dl_open () at /lib64/ld-linux-x86-64.so.2
#15 0x00007f31552b5fc9 in dlopen_doit () at /lib64/libdl.so.2
#16 0x00007f315cb1bfa4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#17 0x00007f31552b6631 in _dlerror_run () at /lib64/libdl.so.2
#18 0x00007f31552b6061 in dlopen () at /lib64/libdl.so.2
#19 0x00007f31414e4d3f in module_Load () at /lib64/libvlccore.so.8
#20 0x00007f31414c981d in module_InitDynamic () at /lib64/libvlccore.so.8
#21 0x00007f31414c9b18 in AllocatePluginDir () at /lib64/libvlccore.so.8
#22 0x00007f31414c9a64 in AllocatePluginDir () at /lib64/libvlccore.so.8
#23 0x00007f31414c9fc4 in AllocatePluginPath () at /lib64/libvlccore.so.8
#24 0x00007f31414ca58a in module_LoadPlugins () at /lib64/libvlccore.so.8
#25 0x00007f3141452e0a in libvlc_InternalInit () at /lib64/libvlccore.so.8
#26 0x00007f3141224deb in libvlc_new () at /lib64/libvlc.so.5
#27 0x00007f31417a5675 in LibVLC::init() () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#28 0x00007f314178b448 in Phonon::VLC::Backend::Backend(QObject*, QList<QVariant> const&) () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#29 0x00007f314178bfc3 in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#30 0x00007f315a558a4b in QPluginLoader::instance() () at /lib64/libQtCore.so.4
#31 0x00007f3143104701 in Phonon::KdePlatformPlugin::createBackend(KSharedPtr<KService>) () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#32 0x00007f3143104e7b in Phonon::KdePlatformPlugin::createBackend() () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#33 0x00007f315c8ca66e in Phonon::FactoryPrivate::createBackend() () at /lib64/libphonon.so.4
#34 0x00007f315c8cadb8 in Phonon::Factory::backend(bool) () at /lib64/libphonon.so.4
#35 0x00007f315c8cb492 in Phonon::Factory::createAudioOutput(QObject*) () at /lib64/libphonon.so.4
#36 0x00007f315c8c3b79 in Phonon::AudioOutputPrivate::createBackendObject() () at /lib64/libphonon.so.4
#37 0x00007f315c8c0e81 in Phonon::AudioOutputPrivate::init(Phonon::Category) () at /lib64/libphonon.so.4
#38 0x000000000040ecb9 in PlayerPool::getPlayer() ()
#39 0x0000000000410060 in NotifyBySound::notify(int, KNotifyConfig*) ()
#40 0x000000000040bb89 in KNotify::emitEvent(KNotify::Event*) ()
#41 0x000000000040ce40 in KNotify::event(QString const&, QString const&, QList<QPair<QString, QString> > const&, QString const&, QString const&, KNotifyImage const&, QStringList const&, int, unsigned long) ()
#42 0x000000000040d92a in KNotifyAdaptor::event(QString const&, QString const&, QList<QVariant> const&, QString const&, QString const&, QByteArray const&, QStringList const&, int, long long) ()
#43 0x000000000040dcfc in KNotifyAdaptor::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.32] ()
#44 0x000000000040de63 in KNotifyAdaptor::qt_metacall(QMetaObject::Call, int, void**) ()
#45 0x00007f315a901615 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QList<int> const&, int) () at /lib64/libQtDBus.so.4
#46 0x00007f315a902b0b in QDBusConnectionPrivate::activateCall(QObject*, int, QDBusMessage const&) () at /lib64/libQtDBus.so.4
#47 0x00007f315a9037f7 in QDBusConnectionPrivate::activateObject(QDBusConnectionPrivate::ObjectTreeNode&, QDBusMessage const&, int) () at /lib64/libQtDBus.so.4
#48 0x00007f315a9039fb in QDBusActivateObjectEvent::placeMetaCall(QObject*) () at /lib64/libQtDBus.so.4
#49 0x00007f315a58d6b1 in QObject::event(QEvent*) () at /lib64/libQtCore.so.4
#50 0x00007f315b210fdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#51 0x00007f315b217aac in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#52 0x00007f315bf4cf2a in KApplication::notify(QObject*, QEvent*) () at /lib64/libkdeui.so.5
#53 0x00007f315a5748fd in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4
#54 0x00007f315a577b5e in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQtCore.so.4
#55 0x00007f315a5a2c5e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQtCore.so.4
#56 0x00007f31573ae0e7 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#57 0x00007f31573ae318 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#58 0x00007f31573ae3bc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#59 0x00007f315a5a2dce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#60 0x00007f315b2b4466 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtGui.so.4
#61 0x00007f315a5732c1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#62 0x00007f315a5735d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#63 0x00007f315a578c69 in QCoreApplication::exec() () at /lib64/libQtCore.so.4
#64 0x0000000000409a2b in main ()

Reported using DrKonqi