Application: dolphin (17.12.3)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-38-generic x86_64
Distribution: Ubuntu 18.04.1 LTS

-- Information about the crash:
Dolphin gets confused and possibly crashes if you:
1) Folder must have multiple subfolders.
2) Folder must be sorted by "Modified".
3) Expland a subfolder (not the last one) and delete a file.
4) Attempt to expand a folder that comes after this folder.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f941e7dd6c0 (LWP 24868))]

Thread 5 (Thread 0x7f53bbfff700 (LWP 32402)):
#0  0x00007f941312f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d12e447240) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f941312f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d12e4471f0, cond=0x55d12e447218) at pthread_cond_wait.c:502
#2  0x00007f941312f9f3 in __pthread_cond_wait (cond=0x55d12e447218, mutex=0x55d12e4471f0) at pthread_cond_wait.c:655
#3  0x00007f941803a59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9418032c0b in QSemaphore::acquire(int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f53e9b0580c in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/texttospeech/libqttexttospeech_flite.so
#6  0x00007f941803916d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f94131296db in start_thread (arg=0x7f53bbfff700) at pthread_create.c:463
#8  0x00007f941e06988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f93f5564700 (LWP 24871)):
#0  0x00007f941e0580b4 in __GI___libc_read (fd=17, buf=0x7f93f5563b90, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f9410ffca00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9410fb7f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9410fb83e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9410fb854c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f941827090b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94182159ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f941803422a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f941803916d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f94131296db in start_thread (arg=0x7f93f5564700) at pthread_create.c:463
#10 0x00007f941e06988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f9404f67700 (LWP 24870)):
#0  0x00007f941e0580b4 in __GI___libc_read (fd=7, buf=0x7f9404f66b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f9410ffca00 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9410fb7f27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9410fb83e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9410fb854c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f941827090b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f94182159ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f941803422a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f94186edd45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f941803916d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f94131296db in start_thread (arg=0x7f9404f67700) at pthread_create.c:463
#11 0x00007f941e06988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f94076a4700 (LWP 24869)):
#0  0x00007f941e05cbf9 in __GI___poll (fds=0x7f94076a3ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f94108f9747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f94108fb36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f940a4512a9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f941803916d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f94131296db in start_thread (arg=0x7f94076a4700) at pthread_create.c:463
#6  0x00007f941e06988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f941e7dd6c0 (LWP 24868)):
[KCrash Handler]
#6  0x00007f941dc7e7ec in KFileItemModel::expandedParentsCount(KFileItemModel::ItemData const*) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#7  0x00007f941dca4e11 in KItemListView::hasSiblingSuccessor(int) const () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#8  0x00007f941dca6073 in KItemListView::updateSiblingsInformation(int, int) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#9  0x00007f941dcadbf3 in KItemListView::slotItemsRemoved(KItemRangeList const&) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#10 0x00007f94182466cf in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f941dd05125 in KItemModelBase::itemsRemoved(KItemRangeList const&) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#12 0x00007f941dc7f5c7 in KFileItemModel::removeItems(KItemRangeList const&, KFileItemModel::RemoveItemsBehavior) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#13 0x00007f941dc8a95a in  () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#14 0x00007f941dc9f433 in KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent*, QTransform const&) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#15 0x00007f941dc9d8aa in KItemListController::processEvent(QEvent*, QTransform const&) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#16 0x00007f941dcaf2e5 in KItemListView::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libdolphinprivate.so.5
#17 0x00007f941921f82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f94192270f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f94182179a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f941951f543 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f941951f908 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f9419524c3a in QGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f941952ea40 in QGraphicsScene::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f941921f82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f94192270f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f94182179a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f941954bccc in QGraphicsView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f941925e038 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f94192ff4be in QFrame::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f941954cbfb in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f941821768c in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f941921f805 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f941922764f in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f94182179a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f9419226622 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f941927914b in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f941927b7ba in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007f941921f82c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f94192270f4 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f94182179a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f9418a63523 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#42 0x00007f9418a64ff5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#43 0x00007f9418a3c2eb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#44 0x00007f940a4b41c0 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#45 0x00007f9410fb8287 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f9410fb84c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f9410fb854c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f94182708ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f94182159ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007f941821ea84 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007f941e37cbaa in kdemain () at /usr/lib/x86_64-linux-gnu/libkdeinit5_dolphin.so
#52 0x00007f941df69b97 in __libc_start_main (main=0x55d12bcea730, argc=1, argv=0x7fffbeaa0498, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffbeaa0488) at ../csu/libc-start.c:310
#53 0x000055d12bcea76a in _start ()

Possible duplicates by query: bug 385257, bug 380201.

Reported using DrKonqi