Application: knotify4 (4.14.9)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 3.16.7-35-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
but KDE keeps popping out saying programme has been shot down and it happens in many cases, not just trying to download stuff

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 0x7f309cab1800 (LWP 10381))]

Thread 2 (Thread 0x7f3089258700 (LWP 10383)):
#0  0x00007f3099c3ebdd in poll () at /lib64/libc.so.6
#1  0x00007f3097094be4 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f3097094cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f309a3c90de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f309a39ae6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f309a39b165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f309a2980bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f309a37c783 in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f309a29a79f in  () at /usr/lib64/libQtCore.so.4
#9  0x00007f3097cc50a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f3099c4700d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f309cab1800 (LWP 10381)):
[KCrash Handler]
#5  0x00007f3099bf1ada in __strcmp_sse2_unaligned () at /lib64/libc.so.6
#6  0x00007f307897cfee in QMetaType::registerNormalizedType(QByteArray const&, void (*)(void*), void* (*)(void const*), void (*)(void*), void* (*)(void*, void const*), int, QFlags<QMetaType::TypeFlag>, QMetaObject const*) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f3078e7cf57 in  () at /usr/lib64/libQt5Gui.so.5
#8  0x00007f309c8e48ea in call_init.part () at /lib64/ld-linux-x86-64.so.2
#9  0x00007f309c8e49d3 in _dl_init_internal () at /lib64/ld-linux-x86-64.so.2
#10 0x00007f309c8e8b08 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#11 0x00007f309c8e47a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#12 0x00007f309c8e82fb in _dl_open () at /lib64/ld-linux-x86-64.so.2
#13 0x00007f309520b02b in dlopen_doit () at /lib64/libdl.so.2
#14 0x00007f309c8e47a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#15 0x00007f309520b5dd in _dlerror_run () at /lib64/libdl.so.2
#16 0x00007f309520b0c1 in dlopen@@GLIBC_2.2.5 () at /lib64/libdl.so.2
#17 0x00007f3083dac59f in  () at /usr/lib64/libvlccore.so.7
#18 0x00007f3083d95d5d in  () at /usr/lib64/libvlccore.so.7
#19 0x00007f3083d96057 in  () at /usr/lib64/libvlccore.so.7
#20 0x00007f3083d962c9 in  () at /usr/lib64/libvlccore.so.7
#21 0x00007f3083d96534 in  () at /usr/lib64/libvlccore.so.7
#22 0x00007f3083d96a87 in  () at /usr/lib64/libvlccore.so.7
#23 0x00007f3083d2e49d in libvlc_InternalInit () at /usr/lib64/libvlccore.so.7
#24 0x00007f3083aff623 in libvlc_new () at /usr/lib64/libvlc.so.5
#25 0x00007f3088212ec9 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#26 0x00007f30881f8728 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#27 0x00007f30881f91eb in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#28 0x00007f309a380641 in QPluginLoader::instance() () at /usr/lib64/libQtCore.so.4
#29 0x00007f308884ef8b in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#30 0x00007f308884f773 in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#31 0x00007f309c03bc76 in  () at /usr/lib64/libphonon.so.4
#32 0x00007f309c03c317 in Phonon::Factory::backend(bool) () at /usr/lib64/libphonon.so.4
#33 0x00007f309c03c8e3 in  () at /usr/lib64/libphonon.so.4
#34 0x00007f309c0349b9 in  () at /usr/lib64/libphonon.so.4
#35 0x00007f309c032896 in  () at /usr/lib64/libphonon.so.4
#36 0x000000000040e771 in _start ()

Reported using DrKonqi