Bug 435565

SUMMARY

Dolphin crashes when collapsing a tree.
It happens with mouse or keyboard action.
Sometimes, the items look duplicate.
This happens 3-4 times a day at least, but not always.

If there is a copying operation, that is aborted and lets partially copied files - regardless the Dolphin instance that performed it. This is new behaviour, previously the copying was not affected.

Stack trace:

Application: Dolphin (dolphin), signal: Segmentation fault

[New LWP 1717]
[New LWP 1718]
[New LWP 1834]
[New LWP 8696]
[New LWP 8697]
[New LWP 8698]
[New LWP 8699]
[New LWP 8751]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f94b0d4f589 in poll () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f94aa101880 (LWP 1715))]

Thread 9 (Thread 0x7f947b5ef640 (LWP 8751)):
#0  0x00007f94ad47c607 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f94aeaff70e in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f94aeafd481 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#5  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f9494dd3640 (LWP 8699)):
#0  0x00007f94ad47c607 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f94aeaff70e in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f94aeafd481 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#5  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f948e236640 (LWP 8698)):
#0  0x00007f94ad47c607 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f94aeaff70e in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f94aeafd481 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#5  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f94955d4640 (LWP 8697)):
#0  0x00007f94ad47c607 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f94aeaff70e in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f94aeafd481 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#5  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f948da35640 (LWP 8696)):
#0  0x00007f94ad47c607 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f94aeaff70e in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f94aeafd481 in ?? () from /usr/lib64/libQt5Core.so.5
#3  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#5  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f948d234640 (LWP 1834)):
#0  0x00007f94acad5a2e in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f94acad7475 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f94acad8983 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f94acad943b in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f94acad962c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f94aecf4b53 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f94aec9fcf3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f94aeaf8cfe in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#8  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#10 0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f9497c21640 (LWP 1718)):
#0  0x00007f94b0d4f589 in poll () from /lib64/libc.so.6
#1  0x00007f94acad9506 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f94acad962c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f94aecf4b53 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f94aec9fcf3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f94aeaf8cfe in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f94afc39595 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#9  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f949c856640 (LWP 1717)):
#0  0x00007f94b0d4f589 in poll () from /lib64/libc.so.6
#1  0x00007f94ad4a1d07 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f94ad4a39ba in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f949c90b700 in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f94aeaf9eac in ?? () from /usr/lib64/libQt5Core.so.5
#5  0x00007f94ad475ede in start_thread () from /lib64/libpthread.so.0
#6  0x00007f94b0d59f7f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f94aa101880 (LWP 1715)):
[KCrash Handler]
#4  0x00007f94b0543956 in KFileItem::~KFileItem() () from /usr/lib64/libKF5KIOCore.so.5
#5  0x00007f94b0b949d3 in KFileItemModel::removeItems(KItemRangeList const&, KFileItemModel::RemoveItemsBehavior) () from /usr/lib64/libdolphinprivate.so.5
#6  0x00007f94b0b9f5f7 in KFileItemModel::setExpanded(int, bool) () from /usr/lib64/libdolphinprivate.so.5
#7  0x00007f94b0bb4151 in KItemListController::onRelease(QPointF const&, QFlags<Qt::KeyboardModifier>, QFlags<Qt::MouseButton>, bool) () from /usr/lib64/libdolphinprivate.so.5
#8  0x00007f94b0bb42d4 in KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent*, QTransform const&) () from /usr/lib64/libdolphinprivate.so.5
#9  0x00007f94b0bb5fd9 in KItemListController::processEvent(QEvent*, QTransform const&) () from /usr/lib64/libdolphinprivate.so.5
#10 0x00007f94b0bc47f6 in KItemListView::event(QEvent*) () from /usr/lib64/libdolphinprivate.so.5
#11 0x00007f94af6887fe in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007f94af68f670 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007f94aeca0f42 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#14 0x00007f94af995753 in ?? () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f94af995b88 in ?? () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f94af99a56a in QGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#17 0x00007f94af9a5310 in QGraphicsScene::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f94af6887fe in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f94af68f670 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#20 0x00007f94aeca0f42 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f94af9c2e66 in QGraphicsView::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f94af6c8788 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f94af7708fe in QFrame::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f94af9c3c83 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f94aeca0d45 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#26 0x00007f94af6887ee in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f94af68f818 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f94aeca0f42 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f94af68ec30 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /usr/lib64/libQt5Widgets.so.5
#30 0x00007f94af6e2936 in ?? () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007f94af6e5d25 in ?? () from /usr/lib64/libQt5Widgets.so.5
#32 0x00007f94af6887fe in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#33 0x00007f94af68f670 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#34 0x00007f94aeca0f42 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#35 0x00007f94af09f694 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5
#36 0x00007f94af0a0bd5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5
#37 0x00007f94af07ca1b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5
#38 0x00007f949c90c6da in ?? () from /usr/lib64/libQt5XcbQpa.so.5
#39 0x00007f94acad92fd in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#40 0x00007f94acad9598 in ?? () from /usr/lib64/libglib-2.0.so.0
#41 0x00007f94acad962c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#42 0x00007f94aecf4b3c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#43 0x00007f94aec9fcf3 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#44 0x00007f94aeca7f60 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#45 0x00007f94b0e6d1a7 in kdemain () from /usr/lib64/libkdeinit5_dolphin.so
#46 0x00007f94b0c82e2d in __libc_start_main () from /lib64/libc.so.6
#47 0x00005562c55e508a in _start ()
[Inferior 1 (process 1715) detached]


SOFTWARE/OS VERSIONS

Operating System: Gentoo Linux
KDE Plasma Version: 5.21.3
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.7.0-sabayon
OS Type: 64-bit
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7 CPU 920 @ 2.67GHz
Memory: 23,5 GiB of RAM
Graphics Processor: GeForce GTX 1060 6GB/PCIe/SSE2