Bug 379726

Application: dolphin (17.04.0)

Qt Version: 5.8.0
Frameworks Version: 5.33.0
Operating System: Linux 4.10.13-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
I just switched from a workspace to another workspace where a dolphin window is on. Then dolphin crashes immediately.

Dolphin had 3 local filesystem tabs open.

Special:
I'm using dolphin under i3wm, not plasma workspace. And I setted `XDG_CURRENT_DESKTOP=KDE` and `QT_QPA_PLATFORMTHEME=kde` to apply KDE widget style under i3wm. I'm using Kvantum as widget engine.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1bd5bf1400 (LWP 26644))]

Thread 5 (Thread 0x7f1ba0eae700 (LWP 29732)):
#0  0x00007f1bca81f756 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1bcf4d958b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f1bcf4d24d3 in QSemaphore::acquire(int) () at /usr/lib/libQt5Core.so.5
#3  0x00007f1ba8f7c37c in  () at /usr/lib/qt/plugins/texttospeech/libqttexttospeech_flite.so
#4  0x00007f1bcf4d86d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f1bca8192e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f1bd557354f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f1ba9981700 (LWP 26670)):
#0  0x00007f1bc847eea6 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x00007f1bc847f8db in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1bc847facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1bcf70809b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1bcf6b18ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1bcf4d3a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1bcf4d86d8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f1bca8192e7 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f1bd557354f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f1bac7b5700 (LWP 26667)):
#0  0x00007f1bca81fca6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f1bae863e44 in  () at /usr/lib/libGLX_nvidia.so.0
#2  0x00007f1bad581394 in  () at /usr/lib/libnvidia-glcore.so.378.13
#3  0x00007f1bae86312c in  () at /usr/lib/libGLX_nvidia.so.0
#4  0x00007f1bca8192e7 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f1bd557354f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f1bbcbc5700 (LWP 26662)):
#0  0x00007f1bd556967d in poll () at /usr/lib/libc.so.6
#1  0x00007f1bc847f9b6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1bc847facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1bcf70809b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f1bcf6b18ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f1bcf4d3a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1bcfb1d125 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f1bcf4d86d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1bca8192e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1bd557354f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f1bd5bf1400 (LWP 26644)):
[KCrash Handler]
#6  0x00007f1bd5883710 in  () at /usr/lib/libkdeinit5_dolphin.so
#7  0x00007f1bd586fdf4 in  () at /usr/lib/libkdeinit5_dolphin.so
#8  0x00007f1bd5870011 in  () at /usr/lib/libkdeinit5_dolphin.so
#9  0x00007f1bd5876ee7 in  () at /usr/lib/libkdeinit5_dolphin.so
#10 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#11 0x00007f1bd58d090f in  () at /usr/lib/libkdeinit5_dolphin.so
#12 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#13 0x00007f1bd58d085f in  () at /usr/lib/libkdeinit5_dolphin.so
#14 0x00007f1bd5883635 in  () at /usr/lib/libkdeinit5_dolphin.so
#15 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#16 0x00007f1bd5217e06 in DolphinView::setActive(bool) () at /usr/lib/libdolphinprivate.so.5
#17 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#18 0x00007f1bd45d3039 in KUrlNavigator::setActive(bool) () at /usr/lib/libKF5KIOFileWidgets.so.5
#19 0x00007f1bd58795c0 in  () at /usr/lib/libkdeinit5_dolphin.so
#20 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#21 0x00007f1bd58af4f9 in  () at /usr/lib/libkdeinit5_dolphin.so
#22 0x00007f1bcf6b31d1 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#23 0x00007f1bd0621325 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f1bd0628b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#25 0x00007f1bcf6b3470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#26 0x00007f1bd06266d6 in QApplicationPrivate::setFocusWidget(QWidget*, Qt::FocusReason) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f1bd06630e5 in QWidget::setFocus(Qt::FocusReason) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007f1bd58ac652 in  () at /usr/lib/libkdeinit5_dolphin.so
#29 0x00007f1bd0668cd8 in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f1bd062134c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#31 0x00007f1bd0628b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#32 0x00007f1bcf6b3470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#33 0x00007f1bd06658c8 in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5
#34 0x00007f1bd0665807 in QWidgetPrivate::showChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#35 0x00007f1bd066589f in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5
#36 0x00007f1bd0665807 in QWidgetPrivate::showChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#37 0x00007f1bd066589f in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5
#38 0x00007f1bd0665807 in QWidgetPrivate::showChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#39 0x00007f1bd066589f in QWidgetPrivate::show_helper() () at /usr/lib/libQt5Widgets.so.5
#40 0x00007f1bd06686d5 in QWidget::setVisible(bool) () at /usr/lib/libQt5Widgets.so.5
#41 0x00007f1bd064a217 in QStackedLayout::setCurrentIndex(int) () at /usr/lib/libQt5Widgets.so.5
#42 0x00007f1bd064aaf0 in QStackedLayout::takeAt(int) () at /usr/lib/libQt5Widgets.so.5
#43 0x00007f1bd064555f in QLayout::removeWidget(QWidget*) () at /usr/lib/libQt5Widgets.so.5
#44 0x00007f1bd588595b in  () at /usr/lib/libkdeinit5_dolphin.so
#45 0x00007f1bcf6df0ee in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#46 0x00007f1bd061ac92 in QAction::triggered(bool) () at /usr/lib/libQt5Widgets.so.5
#47 0x00007f1bd061d3f0 in QAction::activate(QAction::ActionEvent) () at /usr/lib/libQt5Widgets.so.5
#48 0x00007f1bd061dd6c in QAction::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#49 0x00007f1bd062134c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#50 0x00007f1bd0628b61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#51 0x00007f1bcf6b3470 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#52 0x00007f1bcfeb9f28 in QShortcutMap::dispatchEvent(QKeyEvent*) () at /usr/lib/libQt5Gui.so.5
#53 0x00007f1bcfeb9fe9 in QShortcutMap::tryShortcut(QKeyEvent*) () at /usr/lib/libQt5Gui.so.5
#54 0x00007f1bcfe6e5af in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) () at /usr/lib/libQt5Gui.so.5
#55 0x00007f1bcfe89504 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/libQt5Gui.so.5
#56 0x00007f1bcfe8e8a5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#57 0x00007f1bcfe6a44b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#58 0x00007f1bc154e9e0 in  () at /usr/lib/libQt5XcbQpa.so.5
#59 0x00007f1bc847f7b7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#60 0x00007f1bc847fa20 in  () at /usr/lib/libglib-2.0.so.0
#61 0x00007f1bc847facc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#62 0x00007f1bcf70807f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#63 0x00007f1bcf6b18ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#64 0x00007f1bcf6b9e14 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#65 0x00007f1bd5889cda in kdemain () at /usr/lib/libkdeinit5_dolphin.so
#66 0x00007f1bd54a7511 in __libc_start_main () at /usr/lib/libc.so.6
#67 0x000000000040065a in _start ()

Reported using DrKonqi