Application: kcmshell4 (4.14.6)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 3.16.7-29-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
I was changing audio setup from surround 7.1 to stereo and when I clicked apply the window crashed

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#5  0x00007fe33aeba975 in QMetaObject::className() const () at /usr/lib64/libQt5Core.so.5
#6  0x00007fe33bbf617f in  () at /usr/lib64/libQt5Widgets.so.5
#7  0x00007fe355f9192a in call_init.part () at /lib64/ld-linux-x86-64.so.2
#8  0x00007fe355f91a13 in _dl_init_internal () at /lib64/ld-linux-x86-64.so.2
#9  0x00007fe355f95b48 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#10 0x00007fe355f917e4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#11 0x00007fe355f9533b in _dl_open () at /lib64/ld-linux-x86-64.so.2
#12 0x00007fe35069402b in dlopen_doit () at /lib64/libdl.so.2
#13 0x00007fe355f917e4 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#14 0x00007fe3506945dd in _dlerror_run () at /lib64/libdl.so.2
#15 0x00007fe3506940c1 in dlopen@@GLIBC_2.2.5 () at /lib64/libdl.so.2
#16 0x00007fe33d5c759f in  () at /usr/lib64/libvlccore.so.7
#17 0x00007fe33d5b0d5d in  () at /usr/lib64/libvlccore.so.7
#18 0x00007fe33d5b1057 in  () at /usr/lib64/libvlccore.so.7
#19 0x00007fe33d5b12c9 in  () at /usr/lib64/libvlccore.so.7
#20 0x00007fe33d5b1534 in  () at /usr/lib64/libvlccore.so.7
#21 0x00007fe33d5b1a87 in  () at /usr/lib64/libvlccore.so.7
#22 0x00007fe33d54949d in libvlc_InternalInit () at /usr/lib64/libvlccore.so.7
#23 0x00007fe33d313623 in libvlc_new () at /usr/lib64/libvlc.so.5
#24 0x00007fe33d873ec9 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#25 0x00007fe33d859728 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#26 0x00007fe33d85a1eb in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#27 0x00007fe354652641 in QPluginLoader::instance() () at /usr/lib64/libQtCore.so.4
#28 0x00007fe33dda2f8b in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#29 0x00007fe33dda3773 in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#30 0x00007fe3443f6c76 in  () at /usr/lib64/libphonon.so.4
#31 0x00007fe3443f7317 in Phonon::Factory::backend(bool) () at /usr/lib64/libphonon.so.4
#32 0x00007fe3443faaaa in Phonon::GlobalConfig::audioOutputDeviceListFor(Phonon::Category, int) const () at /usr/lib64/libphonon.so.4
#33 0x00007fe34467ab0a in  () at /usr/lib64/kde4/kcm_phonon.so
#34 0x00007fe34467b4b8 in  () at /usr/lib64/kde4/kcm_phonon.so
#35 0x00007fe344674564 in  () at /usr/lib64/kde4/kcm_phonon.so
#36 0x00007fe34467481b in  () at /usr/lib64/kde4/kcm_phonon.so
#37 0x00007fe354e61553 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () at /usr/lib64/libkdecore.so.5
#38 0x00007fe3557a6ede in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () at /usr/lib64/libkcmutils.so.4
#39 0x00007fe3557ac0e3 in  () at /usr/lib64/libkcmutils.so.4
#40 0x00007fe3557ac7f5 in KCModuleProxy::realModule() const () at /usr/lib64/libkcmutils.so.4
#41 0x00007fe3557acb59 in KCModuleProxy::useRootOnlyMessage() const () at /usr/lib64/libkcmutils.so.4
#42 0x00007fe3557a9b91 in KCMultiDialog::addModule(KCModuleInfo const&, KPageWidgetItem*, QStringList const&) () at /usr/lib64/libkcmutils.so.4
#43 0x00007fe355d7b25e in kdemain () at /usr/lib64/libkdeinit4_kcmshell4.so
#44 0x00007fe3559ecb05 in __libc_start_main () at /lib64/libc.so.6
#45 0x000000000040075e in _start ()

Reported using DrKonqi