Application: systemsettings5 (5.3.95)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-rc6-3.g7ae9442-desktop x86_64
Distribution: "openSUSE 20150815 (Tumbleweed) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:

Open systemsettings, click the Applications icon, click File Associations, crash

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0cc95b6740 (LWP 12918))]

Thread 3 (Thread 0x7f0cb6dc7700 (LWP 12919)):
#0  0x00007f0cc53d4fbd in poll () at /lib64/libc.so.6
#1  0x00007f0cc2226332 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f0cc2227e17 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f0cb93547f9 in  () at /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f0cc5ac0eaf in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f0cc19af324 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f0cc53dd70d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0ca6c89700 (LWP 12920)):
#0  0x00007f0cc19b493f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0cacdfe18a in  () at /usr/lib64/dri/r600_dri.so
#2  0x00007f0cacdfd9f7 in  () at /usr/lib64/dri/r600_dri.so
#3  0x00007f0cc19af324 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0cc53dd70d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0cc95b6740 (LWP 12918)):
[KCrash Handler]
#6  0x00007f0cc5b4e0c8 in operator==(QString const&, QString const&) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f0cc5d16fee in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f0cc5d0ab87 in QMimeType::comment() const () at /usr/lib64/libQt5Core.so.5
#9  0x00007f0ca39af99b in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#10 0x00007f0ca39b11b1 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#11 0x00007f0ca39acf89 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#12 0x00007f0ca39a6d44 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#13 0x00007f0ca39a7018 in  () at /usr/lib64/qt5/plugins/kcm_filetypes.so
#14 0x00007f0cc8618329 in  () at /usr/lib64/libKF5ConfigWidgets.so.5
#15 0x00007f0cc5cc0b39 in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#16 0x00007f0cc7794493 in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#17 0x00007f0cc775486c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#18 0x00007f0cc7759b80 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#19 0x00007f0cc5c90bf3 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#20 0x00007f0cc5c92c37 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#21 0x00007f0cc5ce4de3 in  () at /usr/lib64/libQt5Core.so.5
#22 0x00007f0cc1490cc7 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f0cc1490ef8 in  () at /usr/lib64/libglib-2.0.so.0
#24 0x00007f0cc1490f9c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#25 0x00007f0cc5ce51ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#26 0x00007f0cc5c8e5ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#27 0x00007f0cc5c95d6d in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#28 0x00000000004100c8 in main ()

Reported using DrKonqi