Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.3-1-pv x86_64
Distribution: "openSUSE 20150405 (Tumbleweed) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Open System Settings , click on Applications -> File Associations

The crash can be reproduced every time.

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3371217780 (LWP 6738))]

Thread 3 (Thread 0x7f33602df700 (LWP 6739)):
#0  0x00007f336d03e4cd in poll () at /lib64/libc.so.6
#1  0x00007f336aa13322 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f336aa14def in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f33628a3c69 in  () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f336d6af97f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f336a188484 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f336d046a4d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f334c467700 (LWP 6741)):
#0  0x00007f336a18c91f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f3351e7c6a3 in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f3351e7bf57 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f336a188484 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f336d046a4d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f3371217780 (LWP 6738)):
[KCrash Handler]
#5  0x00007f336d741518 in operator==(QString const&, QString const&) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f336d91683d in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f336d909738 in QMimeType::comment() const () at /usr/lib64/libQt5Core.so.5
#8  0x00007f334893badb in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#9  0x00007f334893d2f3 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#10 0x00007f3348938eeb in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#11 0x00007f3348932e5c in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#12 0x00007f3348933178 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#13 0x00007f3370267e19 in  () at /usr/lib64/libKF5ConfigWidgets.so.5
#14 0x00007f336d8ba5c6 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#15 0x00007f336f3c1024 in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#16 0x00007f336f381b5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#17 0x00007f336f386a26 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#18 0x00007f336d889f45 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#19 0x00007f336d88bddf in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f336d8e1e13 in  () at /usr/lib64/libQt5Core.so.5
#21 0x00007f3369c63c74 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f3369c63ec8 in  () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f3369c63f6c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f336d8e128c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#25 0x00007f336d887e9b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f336d88f526 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#27 0x0000000000410130 in main ()

Reported using DrKonqi