Application: digikam (4.6.0)
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:
- What I was doing when the application crashed:
I was starting the application digikam.

- Unusual behavior I noticed:
KNotify provocates a lot of error in the last weeks.

- Custom settings of the application:
the opensuse 13.2 was installed over an existing version of 12.1 6 months ago.

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0dae520880 (LWP 13829))]

Thread 5 (Thread 0x7f0d8ebd3700 (LWP 13830)):
#0  0x00007f0da6fb8f7d in recvmsg () at /lib64/libc.so.6
#1  0x00007f0da4cf4839 in udev_monitor_receive_device () at /usr/lib64/libudev.so.1
#2  0x00007f0d8f7242eb in  () at /usr/lib64/libusb-1.0.so.0
#3  0x00007f0da4f060a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0da6fb800d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f0d88289700 (LWP 13831)):
#0  0x00007f0da4f0a03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0da7a98c86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00000000005e44ae in  ()
#3  0x00007f0da7a9879f in  () at /usr/lib64/libQtCore.so.4
#4  0x00007f0da4f060a4 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f0da6fb800d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f0d87a88700 (LWP 13832)):
#0  0x00007f0da6fafbdd in poll () at /lib64/libc.so.6
#1  0x00007f0d9eeefbe4 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0d9eeefcec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f0da7bc70de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f0da7b98e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f0da7b99165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f0da7a960bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f0da7b7a783 in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f0da7a9879f in  () at /usr/lib64/libQtCore.so.4
#9  0x00007f0da4f060a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0da6fb800d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0d87287700 (LWP 13835)):
#0  0x00007f0da4f0a03f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0da7a98c86 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQtCore.so.4
#2  0x00007f0dac2963fa in  () at /usr/lib64/libdigikamcore.so.4.6.0
#3  0x00007f0da7a9879f in  () at /usr/lib64/libQtCore.so.4
#4  0x00007f0da4f060a4 in start_thread () at /lib64/libpthread.so.0
#5  0x00007f0da6fb800d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0dae520880 (LWP 13829)):
[KCrash Handler]
#5  0x00007f0da6ff6f66 in __strcmp_ssse3 () at /lib64/libc.so.6
#6  0x00007f0d702d1fee 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  0x00007f0d707d1f57 in  () at /usr/lib64/libQt5Gui.so.5
#8  0x00007f0dae3928ea in call_init.part () at /lib64/ld-linux-x86-64.so.2
#9  0x00007f0dae3929d3 in _dl_init_internal () at /lib64/ld-linux-x86-64.so.2
#10 0x00007f0dae396b08 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#11 0x00007f0dae3927a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#12 0x00007f0dae3962fb in _dl_open () at /lib64/ld-linux-x86-64.so.2
#13 0x00007f0d9d91702b in dlopen_doit () at /lib64/libdl.so.2
#14 0x00007f0dae3927a4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#15 0x00007f0d9d9175dd in _dlerror_run () at /lib64/libdl.so.2
#16 0x00007f0d9d9170c1 in dlopen@@GLIBC_2.2.5 () at /lib64/libdl.so.2
#17 0x00007f0d84dd459f in  () at /usr/lib64/libvlccore.so.7
#18 0x00007f0d84dbdd5d in  () at /usr/lib64/libvlccore.so.7
#19 0x00007f0d84dbe057 in  () at /usr/lib64/libvlccore.so.7
#20 0x00007f0d84dbe2c9 in  () at /usr/lib64/libvlccore.so.7
#21 0x00007f0d84dbe534 in  () at /usr/lib64/libvlccore.so.7
#22 0x00007f0d84dbea87 in  () at /usr/lib64/libvlccore.so.7
#23 0x00007f0d84d5649d in libvlc_InternalInit () at /usr/lib64/libvlccore.so.7
#24 0x00007f0d84b27623 in libvlc_new () at /usr/lib64/libvlc.so.5
#25 0x00007f0d8508dec9 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#26 0x00007f0d85073728 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#27 0x00007f0d850741eb in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#28 0x00007f0da7b7e641 in QPluginLoader::instance() () at /usr/lib64/libQtCore.so.4
#29 0x00007f0d855bff8b in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#30 0x00007f0d855c0773 in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#31 0x00007f0dadcadc76 in  () at /usr/lib64/libphonon.so.4
#32 0x00007f0dadcae317 in Phonon::Factory::backend(bool) () at /usr/lib64/libphonon.so.4
#33 0x00007f0dadcae8e3 in  () at /usr/lib64/libphonon.so.4
#34 0x00007f0dadca69b9 in  () at /usr/lib64/libphonon.so.4
#35 0x00007f0dadca4896 in  () at /usr/lib64/libphonon.so.4
#36 0x00007f0dadcd44b0 in  () at /usr/lib64/libphonon.so.4
#37 0x00007f0dadcd46c3 in Phonon::VideoPlayer::mediaObject() const () at /usr/lib64/libphonon.so.4
#38 0x0000000000686f50 in  ()
#39 0x0000000000679250 in  ()
#40 0x0000000000680a93 in  ()
#41 0x000000000057e16a in  ()
#42 0x0000000000598d28 in  ()
#43 0x00000000004a0f2a in  ()
#44 0x00007f0da6ef4b05 in __libc_start_main () at /lib64/libc.so.6
#45 0x00000000004a3b4f in _start ()

Reported using DrKonqi