Application: systemsettings5 (5.1.2)
 (Compiled from sources)
Qt Version: 5.4.0
Operating System: Linux 3.16.0-28-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I opened systemsettings "Input Devices" section and it crashed, the same happens when running it manually through kcmshell5 keyboard.

The last console output I get is
kcm_keyboard: Parsing xkb rules from "/usr/share/X11/xkb/rules/evdev.extras.xml"
then it crashed

The crash can be reproduced every time.

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f293c218780 (LWP 2969))]

Thread 6 (Thread 0x7f292ca9b700 (LWP 2970)):
#0  0x00007f293883e45d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f2937540b72 in poll (__timeout=-1, __nfds=1, __fds=0x7f292ca9ad40) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x253f740, cond=cond@entry=0x253f780, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447
#3  0x00007f293754264f in xcb_wait_for_event (c=0x253f740) at ../../src/xcb_in.c:622
#4  0x00007f292efe6039 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#5  0x00007f2938ec63ce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f29364160a5 in start_thread (arg=0x7f292ca9b700) at pthread_create.c:309
#7  0x00007f293884890d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f291dda9700 (LWP 2980)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f2938ec7468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2938ec3514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2938ec63ce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f29364160a5 in start_thread (arg=0x7f291dda9700) at pthread_create.c:309
#5  0x00007f293884890d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f291d5a8700 (LWP 2981)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f2938ec7468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2938ec3514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2938ec63ce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f29364160a5 in start_thread (arg=0x7f291d5a8700) at pthread_create.c:309
#5  0x00007f293884890d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f291cda7700 (LWP 2982)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f2938ec7468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2938ec3514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2938ec63ce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f29364160a5 in start_thread (arg=0x7f291cda7700) at pthread_create.c:309
#5  0x00007f293884890d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f2917fff700 (LWP 2983)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f2938ec7468 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007f2938ec3514 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2938ec63ce in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f29364160a5 in start_thread (arg=0x7f2917fff700) at pthread_create.c:309
#5  0x00007f293884890d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f293c218780 (LWP 2969)):
[KCrash Handler]
#6  0x00007f291ef7788e in LayoutInfo* findByName<LayoutInfo>(QList<LayoutInfo*>, QString) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#7  0x00007f291ef88c11 in mergeRules(Rules*, Rules*) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#8  0x00007f291ef88ff4 in Rules::readRules(Rules::ExtrasFlag) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#9  0x00007f291ef6a2cf in KCMKeyboard::KCMKeyboard(QWidget*, QList<QVariant> const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#10 0x00007f291ef6c650 in QObject* KPluginFactory::createInstance<KCMKeyboard, QWidget>(QWidget*, QObject*, QList<QVariant> const&) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#11 0x00007f29393a75ba in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#12 0x00007f293bd8e08b in KCModule* KPluginFactory::create<KCModule>(QWidget*, QObject*, QString const&, QList<QVariant> const&) () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#13 0x00007f293bd8db49 in KCModule* KService::createInstance<KCModule>(QWidget*, QObject*, QList<QVariant> const&, QString*) const () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#14 0x00007f293bd8d7d0 in KCModule* KService::createInstance<KCModule>(QObject*, QList<QVariant> const&, QString*) const () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#15 0x00007f293bd8c7dd in KCModuleLoader::loadModule(KCModuleInfo const&, KCModuleLoader::ErrorReporting, QWidget*, QStringList const&) () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#16 0x00007f293bd936ed in KCModuleProxyPrivate::loadModule() () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#17 0x00007f293bd932e5 in KCModuleProxy::realModule() const () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#18 0x00007f293bd93e3e in KCModuleProxy::showEvent(QShowEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5KCMUtils.so.5
#19 0x00007f2939f5a458 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f2939f16f0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f2939f1c590 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f293910365b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f2939f57adb in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f2939f5792a in QWidgetPrivate::showChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f2939f579cd in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f2939f59d55 in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f2939f57940 in QWidgetPrivate::showChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f2939f579cd in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f2939f59d55 in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f2939f3cfe1 in QStackedLayout::setCurrentIndex(int) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f2939f3d254 in QStackedLayout::setCurrentWidget(QWidget*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f293a0b5641 in QStackedWidget::setCurrentWidget(QWidget*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f293a564939 in KPageViewPrivate::_k_pageSelected(QItemSelection const&, QItemSelection const&) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#34 0x00007f293a56587b in KPageView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#35 0x00007f29391334e9 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#36 0x00007f29390b39d7 in QItemSelectionModel::selectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f29390ba3ce in QItemSelectionModel::emitSelectionChanged(QItemSelection const&, QItemSelection const&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f29390bb2e5 in QItemSelectionModel::select(QItemSelection const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f29390b5eec in QItemSelectionModel::select(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#40 0x00007f29390b3dab in QItemSelectionModel::setCurrentIndex(QModelIndex const&, QFlags<QItemSelectionModel::SelectionFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f293a563d6d in KPageViewPrivate::_k_rebuildGui() () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#42 0x00007f293a56463f in KPageViewPrivate::_k_modelChanged() () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#43 0x00007f293a565849 in KPageView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#44 0x00007f29391334e9 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007f29391b0166 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f293a56c10a in KPageWidgetModel::addPage(KPageWidgetItem*) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#47 0x00007f293a56a368 in KPageWidget::addPage(KPageWidgetItem*) () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
#48 0x00007f293bfd52f7 in ModuleView::addModule(KCModuleInfo*) () from /usr/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#49 0x00007f293bfd56a3 in ModuleView::loadModule(QModelIndex) () from /usr/lib/x86_64-linux-gnu/libsystemsettingsview.so.3
#50 0x00007f29228a1603 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/icon_mode.so
#51 0x00007f29391334e9 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f293a174355 in QAbstractItemView::activated(QModelIndex const&) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#53 0x00007f293a17d1b6 in QAbstractItemView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#54 0x00007f293a1a1a5e in QListView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#55 0x00007f29385234d4 in KCategorizedView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5ItemViews.so.5
#56 0x00007f2939f5a458 in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#57 0x00007f293a05832e in QFrame::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#58 0x00007f293a18357b in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#59 0x00007f2939103444 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x00007f2939f16eec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#61 0x00007f2939f1cbce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#62 0x00007f293910365b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#63 0x00007f2939f1b79a in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#64 0x00007f2939f72890 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#65 0x00007f2939f74a03 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#66 0x00007f2939f16f0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#67 0x00007f2939f1c590 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#68 0x00007f293910365b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#69 0x00007f293995c74b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#70 0x00007f293995e135 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#71 0x00007f29399431af in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#72 0x00007f292f00f480 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#73 0x00007f2935ef6ecd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f2935ef71b0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f2935ef725c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f293915b677 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x00007f2939100e12 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007f2939108a5c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#79 0x000000000040e94c in main ()

Reported using DrKonqi