Bug 419395

Application: gwenview (18.04.3)

Qt Version: 5.11.3
Frameworks Version: 5.55.0
Operating System: Linux 5.0.16-100.fc28.x86_64 x86_64
Distribution: "Fedora release 28 (Twenty Eight)"

-- Information about the crash:
I was browsing a directory with images.
When I tried to change to a neighbour directory using the breadcumb the crash happened

The crash can be reproduced sometimes.

-- Backtrace:
Application: Gwenview (gwenview), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbbcde506c0 (LWP 10316))]

Thread 3 (Thread 0x7fbba1bdc700 (LWP 10318)):
#0  0x00007fbbbd12cb1d in g_mutex_lock () from /lib64/libglib-2.0.so.0
#1  0x00007fbbbd0e5d6c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#2  0x00007fbbc5ac9d5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#3  0x00007fbbc5a785bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007fbbc58e0c16 in QThread::exec() () from /lib64/libQt5Core.so.5
#5  0x00007fbbc7aaeb39 in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#6  0x00007fbbc58ea08b in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#7  0x00007fbbc42c0594 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fbbc4c25e5f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fbba8d61700 (LWP 10317)):
#0  0x00007fbbc4c1b329 in poll () from /lib64/libc.so.6
#1  0x00007fbbc2a5204f in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007fbbc2a53caa in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007fbbaac9cf09 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007fbbc58ea08b in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007fbbc42c0594 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fbbc4c25e5f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fbbcde506c0 (LWP 10316)):
[KCrash Handler]
#6  0x00007fbbc5aba22b in (anonymous namespace)::clear(QVariant::Private*) () from /lib64/libQt5Core.so.5
#7  0x00007fbbcd369bc8 in QMap<QString, QVariant>::~QMap() () from /lib64/libgwenviewlib.so.5
#8  0x00007fbbcd365f82 in Gwenview::MprisMediaPlayer2Player::onMetaInfoUpdated() () from /lib64/libgwenviewlib.so.5
#9  0x00007fbbcd3668d1 in Gwenview::MprisMediaPlayer2Player::onCurrentUrlChanged(QUrl const&) () from /lib64/libgwenviewlib.so.5
#10 0x00007fbbc5aa1973 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#11 0x00007fbbcd37ac89 in Gwenview::ContextManager::currentUrlChanged(QUrl const&) () from /lib64/libgwenviewlib.so.5
#12 0x00007fbbcd2cf39c in Gwenview::ContextManager::setCurrentUrl(QUrl const&) () from /lib64/libgwenviewlib.so.5
#13 0x00007fbbcd2cf43d in Gwenview::ContextManager::slotCurrentChanged(QModelIndex const&) () from /lib64/libgwenviewlib.so.5
#14 0x00007fbbc5aa1973 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#15 0x00007fbbc5a4272e in QItemSelectionModel::currentChanged(QModelIndex const&, QModelIndex const&) () from /lib64/libQt5Core.so.5
#16 0x00007fbbc5a4922b in QItemSelectionModelPrivate::_q_rowsAboutToBeRemoved(QModelIndex const&, int, int) () from /lib64/libQt5Core.so.5
#17 0x00007fbbc5a4b6d9 in QItemSelectionModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libQt5Core.so.5
#18 0x00007fbbc5aa184e in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#19 0x00007fbbc5a354a2 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /lib64/libQt5Core.so.5
#20 0x00007fbbc5a3c009 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () from /lib64/libQt5Core.so.5
#21 0x00007fbbc5a55c8d in QSortFilterProxyModelPrivate::remove_proxy_interval(QVector<int>&, QVector<int>&, int, int, QModelIndex const&, Qt::Orientation, bool) () from /lib64/libQt5Core.so.5
#22 0x00007fbbc5a5a6c7 in QSortFilterProxyModelPrivate::remove_source_items(QVector<int>&, QVector<int>&, QVector<int> const&, QModelIndex const&, Qt::Orientation, bool) () from /lib64/libQt5Core.so.5
#23 0x00007fbbc5a5a8d1 in QSortFilterProxyModelPrivate::source_items_about_to_be_removed(QModelIndex const&, int, int, Qt::Orientation) () from /lib64/libQt5Core.so.5
#24 0x00007fbbc5a5d3bd in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libQt5Core.so.5
#25 0x00007fbbc5aa184e in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#26 0x00007fbbc5a354a2 in QAbstractItemModel::rowsAboutToBeRemoved(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () from /lib64/libQt5Core.so.5
#27 0x00007fbbc5a3c009 in QAbstractItemModel::beginRemoveRows(QModelIndex const&, int, int) () from /lib64/libQt5Core.so.5
#28 0x00007fbbcc894167 in KDirModelPrivate::_k_slotClear() () from /lib64/libKF5KIOWidgets.so.5
#29 0x00007fbbc5aa1973 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#30 0x00007fbbcc518dab in KCoreDirListerCache::forgetDirs(KCoreDirLister*) () from /lib64/libKF5KIOCore.so.5
#31 0x00007fbbcc51c05a in KCoreDirListerCache::listDir(KCoreDirLister*, QUrl const&, bool, bool) () from /lib64/libKF5KIOCore.so.5
#32 0x00007fbbcd2cec66 in Gwenview::ContextManager::setCurrentDirUrl(QUrl const&) () from /lib64/libgwenviewlib.so.5
#33 0x00007fbbcd2cfa88 in Gwenview::ContextManager::setUrlToSelect(QUrl const&) () from /lib64/libgwenviewlib.so.5
#34 0x00005573d439becc in Gwenview::MainWindow::openDirUrl(QUrl const&) ()
#35 0x00005573d43cbd4e in Gwenview::MainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#36 0x00007fbbc5aa184e in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#37 0x00007fbbccb83ee9 in KUrlNavigator::urlChanged(QUrl const&) () from /lib64/libKF5KIOFileWidgets.so.5
#38 0x00007fbbccb87a82 in KUrlNavigator::setLocationUrl(QUrl const&) () from /lib64/libKF5KIOFileWidgets.so.5
#39 0x00007fbbc5aa184e in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#40 0x00007fbbccb7c31d in KDEPrivate::KUrlNavigatorButton::mouseReleaseEvent(QMouseEvent*) () from /lib64/libKF5KIOFileWidgets.so.5
#41 0x00007fbbc73d2658 in QWidget::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#42 0x00007fbbc7393565 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#43 0x00007fbbc739aec8 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#44 0x00007fbbc5a79676 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#45 0x00007fbbc739a1bd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQt5Widgets.so.5
#46 0x00007fbbc73ed3f8 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from /lib64/libQt5Widgets.so.5
#47 0x00007fbbc73eff9e in QWidgetWindow::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#48 0x00007fbbc7393565 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#49 0x00007fbbc739ac80 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#50 0x00007fbbc5a79676 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#51 0x00007fbbc6c4f183 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib64/libQt5Gui.so.5
#52 0x00007fbbc6c51285 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /lib64/libQt5Gui.so.5
#53 0x00007fbbc6c2c3bb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5
#54 0x00007fbbaad30b6f in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5XcbQpa.so.5
#55 0x00007fbbc5a785bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#56 0x00007fbbc5a80686 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#57 0x00005573d43773d0 in main ()

Reported using DrKonqi