Application: dolphin (15.12.0)

Qt Version: 5.5.1
Operating System: Linux 4.1.13-5-default x86_64
Distribution: "openSUSE Leap 42.1 (x86_64)"

-- Information about the crash:
- Right click folder , move mouse pointer over activities tab

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f28dc5017c0 (LWP 6800))]

Thread 4 (Thread 0x7f28c531b700 (LWP 6801)):
#0  0x00007f28dbd98c1d in poll () at /lib64/libc.so.6
#1  0x00007f28cecd7422 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f28cecd900f in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f28c769c3c9 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f28d5e7732f in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f28d18bc0a4 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f28dbda104d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f28b2ed3700 (LWP 6804)):
#0  0x00007f28dbd98c1d in poll () at /lib64/libc.so.6
#1  0x00007f28d0d27e64 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f28d0d27f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f28d60a9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#4  0x00007f28d6050d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f28d5e7261a in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6  0x00007f28d5e7732f in  () at /usr/lib64/libQt5Core.so.5
#7  0x00007f28d18bc0a4 in start_thread () at /lib64/libpthread.so.0
#8  0x00007f28dbda104d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f28b1623700 (LWP 6811)):
[KCrash Handler]
#6  0x00007f28d5e6fbf5 in QMutex::lock() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f28d5e76568 in  () at /usr/lib64/libQt5Core.so.5
#8  0x00007f28d5e77351 in  () at /usr/lib64/libQt5Core.so.5
#9  0x00007f28d18bc0a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f28dbda104d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f28dc5017c0 (LWP 6800)):
#0  0x00007f28d18c005f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f28cecd7669 in  () at /usr/lib64/libxcb.so.1
#2  0x00007f28cecd8d5f in  () at /usr/lib64/libxcb.so.1
#3  0x00007f28cecd8e72 in xcb_wait_for_reply () at /usr/lib64/libxcb.so.1
#4  0x00007f28c76abb69 in QXcbWindow::setKeyboardGrabEnabled(bool) () at /usr/lib64/libQt5XcbQpa.so.5
#5  0x00007f28d71d31a6 in  () at /usr/lib64/libQt5Widgets.so.5
#6  0x00007f28d71dae88 in QApplicationPrivate::closePopup(QWidget*) () at /usr/lib64/libQt5Widgets.so.5
#7  0x00007f28d72135be in QWidgetPrivate::hide_helper() () at /usr/lib64/libQt5Widgets.so.5
#8  0x00007f28d72179e8 in QWidget::setVisible(bool) () at /usr/lib64/libQt5Widgets.so.5
#9  0x00007f28d721366b in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at /usr/lib64/libQt5Widgets.so.5
#10 0x00007f28d734ddee in  () at /usr/lib64/libQt5Widgets.so.5
#11 0x00007f28d734e1f1 in QMenu::internalDelayedPopup() () at /usr/lib64/libQt5Widgets.so.5
#12 0x00007f28d60838bc in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#13 0x00007f28d7217f64 in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#14 0x00007f28d73533db in QMenu::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#15 0x00007f28d71d7e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#16 0x00007f28d71dccc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#17 0x00007f28d6052e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#18 0x00007f28d60a977d in QTimerInfoList::activateTimers() () at /usr/lib64/libQt5Core.so.5
#19 0x00007f28d60a9aa1 in  () at /usr/lib64/libQt5Core.so.5
#20 0x00007f28d0d27c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#21 0x00007f28d0d27ed8 in  () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f28d0d27f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f28d60a9d8b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#24 0x00007f28d6050d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#25 0x00007f28d734da20 in QMenu::exec(QPoint const&, QAction*) () at /usr/lib64/libQt5Widgets.so.5
#26 0x00007f28dc0bbb72 in  () at /usr/lib64/libkdeinit5_dolphin.so
#27 0x00007f28dc0bd12d in  () at /usr/lib64/libkdeinit5_dolphin.so
#28 0x00007f28dc0b3007 in  () at /usr/lib64/libkdeinit5_dolphin.so
#29 0x00007f28d608273f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#30 0x00007f28dba77f54 in DolphinView::requestContextMenu(QPoint const&, KFileItem const&, QUrl const&, QList<QAction*> const&) () at /usr/lib64/libdolphinprivate.so.5
#31 0x00007f28dba560ef in DolphinView::slotItemContextMenuRequested(int, QPointF const&) () at /usr/lib64/libdolphinprivate.so.5
#32 0x00007f28d608273f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#33 0x00007f28dba76da6 in KItemListController::itemContextMenuRequested(int, QPointF const&) () at /usr/lib64/libdolphinprivate.so.5
#34 0x00007f28dba197d4 in KItemListController::mousePressEvent(QGraphicsSceneMouseEvent*, QTransform const&) () at /usr/lib64/libdolphinprivate.so.5
#35 0x00007f28dba188eb in KItemListController::processEvent(QEvent*, QTransform const&) () at /usr/lib64/libdolphinprivate.so.5
#36 0x00007f28dba2a3b2 in KItemListView::event(QEvent*) () at /usr/lib64/libdolphinprivate.so.5
#37 0x00007f28d71d7e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#38 0x00007f28d71dccc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#39 0x00007f28d6052e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#40 0x00007f28d74e673f in  () at /usr/lib64/libQt5Widgets.so.5
#41 0x00007f28d74e6b25 in  () at /usr/lib64/libQt5Widgets.so.5
#42 0x00007f28d74efa52 in  () at /usr/lib64/libQt5Widgets.so.5
#43 0x00007f28d74efe99 in QGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent*) () at /usr/lib64/libQt5Widgets.so.5
#44 0x00007f28d74f92e0 in QGraphicsScene::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#45 0x00007f28d71d7e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#46 0x00007f28d71dccc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#47 0x00007f28d6052e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#48 0x00007f28d7512f27 in QGraphicsView::mousePressEvent(QMouseEvent*) () at /usr/lib64/libQt5Widgets.so.5
#49 0x00007f28d72183ba in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#50 0x00007f28d731243e in QFrame::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#51 0x00007f28d7514b53 in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#52 0x00007f28d60530d3 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#53 0x00007f28d71d7e5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#54 0x00007f28d71dd2cb in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#55 0x00007f28d6052e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#56 0x00007f28d71dc191 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib64/libQt5Widgets.so.5
#57 0x00007f28d723113b in  () at /usr/lib64/libQt5Widgets.so.5
#58 0x00007f28d7233353 in  () at /usr/lib64/libQt5Widgets.so.5
#59 0x00007f28d71d7e7c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#60 0x00007f28d71dccc8 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#61 0x00007f28d6052e95 in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#62 0x00007f28d6a40804 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib64/libQt5Gui.so.5
#63 0x00007f28d6a42015 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib64/libQt5Gui.so.5
#64 0x00007f28d6a27118 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Gui.so.5
#65 0x00007f28c76c7200 in  () at /usr/lib64/libQt5XcbQpa.so.5
#66 0x00007f28d0d27c84 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#67 0x00007f28d0d27ed8 in  () at /usr/lib64/libglib-2.0.so.0
#68 0x00007f28d0d27f7c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#69 0x00007f28d60a9d6c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#70 0x00007f28d6050d53 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#71 0x00007f28d60588f6 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#72 0x00007f28dc0c45f1 in kdemain () at /usr/lib64/libkdeinit5_dolphin.so
#73 0x00007f28dbcddb05 in __libc_start_main () at /lib64/libc.so.6
#74 0x00000000004007ee in _start ()

Reported using DrKonqi