Application: okular (0.21.3)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 4.1.8-100.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

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

1. open PDF (early release from O'Reilly)
2. scroll/jump in document
3. close app (may be I press double times Ctrl+Q ??)
4. crash

-- Backtrace:
Application: Okular (okular), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  0x00007fd9b356634b in Okular::Document::closeDocument() () at /lib64/libokularcore.so.6
#7  0x00007fd9b388e707 in Okular::Part::closeUrl(bool) () at /usr/lib64/kde4/okularpart.so
#8  0x000000000040ca63 in Shell::closeTab(int) ()
#9  0x0000000000410475 in Shell::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.35] ()
#10 0x000000300979ad9c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /lib64/libQtCore.so.4
#11 0x000000309fbc1792 in QAction::triggered(bool) () at /lib64/libQtGui.so.4
#12 0x000000309fbc3317 in QAction::activate(QAction::ActionEvent) () at /lib64/libQtGui.so.4
#13 0x000000309fbc388c in QAction::event(QEvent*) () at /lib64/libQtGui.so.4
#14 0x0000003a0c56be82 in KAction::event(QEvent*) () at /lib64/libkdeui.so.5
#15 0x000000309fbc7efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#16 0x000000309fbce958 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#17 0x0000003a0c64ee0a in KApplication::notify(QObject*, QEvent*) () at /lib64/libkdeui.so.5
#18 0x000000300978622d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4
#19 0x000000309fbfb9ab in QShortcutMap::dispatchEvent(QKeyEvent*) () at /lib64/libQtGui.so.4
#20 0x000000309fbfbb14 in QShortcutMap::tryShortcutEvent(QObject*, QKeyEvent*) () at /lib64/libQtGui.so.4
#21 0x000000309fbd012e in QApplication::notify(QObject*, QEvent*) () at /lib64/libQtGui.so.4
#22 0x0000003a0c64ee0a in KApplication::notify(QObject*, QEvent*) () at /lib64/libkdeui.so.5
#23 0x000000300978622d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQtCore.so.4
#24 0x000000309fc68523 in QKeyMapper::sendKeyEvent(QWidget*, bool, QEvent::Type, int, QFlags<Qt::KeyboardModifier>, QString const&, bool, int, unsigned int, unsigned int, unsigned int, bool*) () at /lib64/libQtGui.so.4
#25 0x000000309fc689c2 in QKeyMapperPrivate::translateKeyEvent(QWidget*, _XEvent const*, bool) () at /lib64/libQtGui.so.4
#26 0x000000309fc432cf in QApplication::x11ProcessEvent(_XEvent*) () at /lib64/libQtGui.so.4
#27 0x000000309fc6aff4 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQtGui.so.4
#28 0x00000038890497fb in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#29 0x0000003889049b98 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#30 0x0000003889049c4c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#31 0x00000030097b555e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#32 0x000000309fc6b176 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtGui.so.4
#33 0x0000003009784d81 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#34 0x00000030097850e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQtCore.so.4
#35 0x000000300978a7c9 in QCoreApplication::exec() () at /lib64/libQtCore.so.4
#36 0x00000000004095a0 in main ()

Reported using DrKonqi