Application: konqueror (4.14.3)
KDE Platform Version: 4.14.3 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.17.4-gentoo-Vamp898 x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
I wanted to download the AMD GPU Driver from the Homepage. It automatically tried to open it with Ark instead of downloading it, so i closed the tab after 3 seconds it started downloading it

Doing so, crashed Konqueror with all Tabs

Download Linkhttp://support.amd.com/en-us/download/desktop?os=Linux%20x86_64

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7edbe68780 (LWP 840))]

Thread 7 (Thread 0x7f7ebb1ef700 (LWP 15464)):
#0  0x00007f7eda71cb28 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f7eda9ab0e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7eda99ecba in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f7ebba4f700 (LWP 15465)):
#0  0x00007f7eda71cb28 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f7eda9ab0e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7eda99ecba in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f7eba9ee700 (LWP 15471)):
#0  0x00007f7ed65a70cf in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7ed65a7933 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7ed65a7b1c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7edaad6fbe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7edaaa9497 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007f7edaaa975d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007f7eda9a856f in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007f7ed1fd828e in KIO::NameLookUpThread::run() () from /usr/lib64/libkio.so.5
#8  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f7ebc7b7700 (LWP 15472)):
#0  0x00007f7eda71cb28 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f7eda9ab0e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7eda99ecba in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f7eb8eae700 (LWP 15493)):
#0  0x00007f7eda71cb28 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f7eda9ab0e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7eda99ecba in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f7ea3fff700 (LWP 15494)):
#0  0x00007f7eda71cb28 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f7eda9ab0e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007f7eda99ecba in QThreadPoolThread::run() () from /usr/lib64/qt4/libQtCore.so.4
#3  0x00007f7eda9aac0f in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f7eda718354 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f7ed94d2aad in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7edbe68780 (LWP 840)):
[KCrash Handler]
#5  0x00007f7edb9429e0 in KXMLGUIFactory::removeClient(KXMLGUIClient*) () from /usr/lib64/libkdeui.so.5
#6  0x00007f7eb8485df4 in Ark::Part::~Part() () from /usr/lib64/kde4/arkpart.so
#7  0x00007f7eb8485e81 in Ark::Part::~Part() () from /usr/lib64/kde4/arkpart.so
#8  0x00007f7ec6634962 in KonqView::~KonqView() () from /usr/lib64/libkdeinit4_konqueror.so
#9  0x00007f7ec6634c49 in KonqView::~KonqView() () from /usr/lib64/libkdeinit4_konqueror.so
#10 0x00007f7ec663938f in KonqViewManager::removeTab(KonqFrameBase*, bool) () from /usr/lib64/libkdeinit4_konqueror.so
#11 0x00007f7ec66669d3 in KonqMainWindow::removeTab(int) () from /usr/lib64/libkdeinit4_konqueror.so
#12 0x00007f7ec667fde2 in KonqMainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.153] () from /usr/lib64/libkdeinit4_konqueror.so
#13 0x00007f7edaac25b6 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#14 0x00007f7ed9ca579b in QWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#15 0x00007f7eda039dab in QMainWindow::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#16 0x00007f7edb9398b1 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libkdeui.so.5
#17 0x00007f7ec6682bb4 in KonqMainWindow::event(QEvent*) () from /usr/lib64/libkdeinit4_konqueror.so
#18 0x00007f7ed9c56fcc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#19 0x00007f7ed9c5d5a5 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#20 0x00007f7edb851e32 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#21 0x00007f7edaaaa81c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#22 0x00007f7edaaad990 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007f7edaad778e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#24 0x00007f7ed65a785b in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#25 0x00007f7ed65a7a78 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#26 0x00007f7ed65a7b1c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f7edaad6f9e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#28 0x00007f7ed9cf2286 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#29 0x00007f7edaaa9497 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#30 0x00007f7edaaa975d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#31 0x00007f7edaaae9f9 in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#32 0x00007f7ec669ff7d in kdemain () from /usr/lib64/libkdeinit4_konqueror.so
#33 0x0000000000407ee1 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#34 0x0000000000408d3b in handle_launcher_request(int, char const*) [clone .isra.13] ()
#35 0x000000000040939e in handle_requests(int) ()
#36 0x0000000000405208 in main ()

Reported using DrKonqi