Application: amarok (2.8.0)
KDE Platform Version: 4.14.13
Qt Version: 4.8.7
Operating System: Linux 4.2.5-desktop-1.mga6 x86_64
Distribution: "Mageia 6"

-- Information about the crash:
Freshly started plasma session - didn't have anything else running

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f3980a1facd in __memcpy_avx_unaligned () at /lib64/libc.so.6
#7  0x00007f398109176b in QByteArray::append(char const*) () at /lib64/libQtCore.so.4
#8  0x00007f3952d6e4ae in QMetaTypeIdQObject<QWidget*, 8>::qt_metatype_id() () at /lib64/libQt5Widgets.so.5
#9  0x00007f3952d0c857 in _GLOBAL__sub_I_qwidgetsvariant.cpp () at /lib64/libQt5Widgets.so.5
#10 0x00007f3983bec0fa in call_init.part () at /lib64/ld-linux-x86-64.so.2
#11 0x00007f3983bec20b in _dl_init () at /lib64/ld-linux-x86-64.so.2
#12 0x00007f3983bf02a2 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#13 0x00007f3983bebfa4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#14 0x00007f3983bef9e1 in _dl_open () at /lib64/ld-linux-x86-64.so.2
#15 0x00007f397ae1afc9 in dlopen_doit () at /lib64/libdl.so.2
#16 0x00007f3983bebfa4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#17 0x00007f397ae1b631 in _dlerror_run () at /lib64/libdl.so.2
#18 0x00007f397ae1b061 in dlopen () at /lib64/libdl.so.2
#19 0x00007f39579d7d6f in module_Load () at /lib64/libvlccore.so.8
#20 0x00007f39579bc82d in module_InitDynamic () at /lib64/libvlccore.so.8
#21 0x00007f39579bcb28 in AllocatePluginDir () at /lib64/libvlccore.so.8
#22 0x00007f39579bca74 in AllocatePluginDir () at /lib64/libvlccore.so.8
#23 0x00007f39579bcfd4 in AllocatePluginPath () at /lib64/libvlccore.so.8
#24 0x00007f39579bd59a in module_LoadPlugins () at /lib64/libvlccore.so.8
#25 0x00007f3957945e0a in libvlc_InternalInit () at /lib64/libvlccore.so.8
#26 0x00007f3957717deb in libvlc_new () at /lib64/libvlc.so.5
#27 0x00007f3957c61675 in LibVLC::init() () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#28 0x00007f3957c47448 in Phonon::VLC::Backend::Backend(QObject*, QList<QVariant> const&) () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#29 0x00007f3957c47fc3 in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#30 0x00007f3981178a7b in QPluginLoader::instance() () at /lib64/libQtCore.so.4
#31 0x00007f395cca1701 in Phonon::KdePlatformPlugin::createBackend(KSharedPtr<KService>) () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#32 0x00007f395cca1e7b in Phonon::KdePlatformPlugin::createBackend() () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#33 0x00007f39803f666e in Phonon::FactoryPrivate::createBackend() () at /lib64/libphonon.so.4
#34 0x00007f39803f6db8 in Phonon::Factory::backend(bool) () at /lib64/libphonon.so.4
#35 0x00007f39803f7492 in Phonon::Factory::createAudioOutput(QObject*) () at /lib64/libphonon.so.4
#36 0x00007f39803efb79 in Phonon::AudioOutputPrivate::createBackendObject() () at /lib64/libphonon.so.4
#37 0x00007f39803ece81 in Phonon::AudioOutputPrivate::init(Phonon::Category) () at /lib64/libphonon.so.4
#38 0x00007f3983763e59 in EngineController::initializePhonon() () at /lib64/libamaroklib.so.1
#39 0x00007f398376aa45 in EngineController::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.67] () at /lib64/libamaroklib.so.1
#40 0x00007f398119cab1 in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () at /lib64/libQtCore.so.4
#41 0x00007f398119ee8e in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () at /lib64/libQtCore.so.4
#42 0x00007f398383770f in Amarok::DefaultApplicationController::initEngineController() () at /lib64/libamaroklib.so.1
#43 0x00007f3983837771 in Amarok::DefaultApplicationController::start() () at /lib64/libamaroklib.so.1
#44 0x00007f398375ced2 in App::continueInit() () at /lib64/libamaroklib.so.1
#45 0x00007f398375e13c in App::App() () at /lib64/libamaroklib.so.1
#46 0x00000000004085e0 in main ()

Reported using DrKonqi