[dolphin] [Bug 430505] New: Dolphin crash when un-disclosing USB drive folder with many files

Angus G Nicholson III bugzilla_noreply at kde.org
Thu Dec 17 12:25:13 GMT 2020 

https://bugs.kde.org/show_bug.cgi?id=430505

            Bug ID: 430505
           Summary: Dolphin crash when un-disclosing USB drive folder with
                    many files
           Product: dolphin
           Version: 20.08.3
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: angus at agn3.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Application: dolphin (20.08.3)

Qt Version: 5.14.2
Frameworks Version: 5.75.0
Operating System: Linux 5.9.13-100.fc32.x86_64 x86_64
Windowing system: X11
Distribution: Fedora 32 (Workstation Edition)

-- Information about the crash:
- What I was doing when the application crashed:
* Connected a backup USB3 4TB drive to find a file
* Using Dolphin, navigated to a folder above one with 4084 .bmp files generated
for an animation
* expanded folder with 4084.bmp files, verifing it was the correct folder I
needed
* contracted/un-disclosed folder with 4084 files
* Dolphin crashed
* Repeated steps starting with starting Dolphin, and navigating to the folder
with 4084 files
* Confirmed Dolphin crashed again
* reported bug.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc926b7d940 (LWP 10570))]

Thread 4 (Thread 0x7fc910e4f700 (LWP 10573)):
#0  0x00007fc92d54baaf in poll () from /lib64/libc.so.6
#1  0x00007fc9295f6aae in g_main_context_iterate.constprop () from
/lib64/libglib-2.0.so.0
#2  0x00007fc9295f6be3 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007fc92b67db8b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007fc92b63091b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007fc92b49c427 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fc92b49d690 in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#7  0x00007fc929f9d432 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fc92d556913 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fc918d1f700 (LWP 10572)):
#0  0x00007fc92d54baaf in poll () from /lib64/libc.so.6
#1  0x00007fc9295f6aae in g_main_context_iterate.constprop () from
/lib64/libglib-2.0.so.0
#2  0x00007fc9295f6be3 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#3  0x00007fc92b67db8b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#4  0x00007fc92b63091b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#5  0x00007fc92b49c427 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fc92b90d51b in QDBusConnectionManager::run() () from
/lib64/libQt5DBus.so.5
#7  0x00007fc92b49d690 in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#8  0x00007fc929f9d432 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc92d556913 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc9198e0700 (LWP 10571)):
#0  0x00007fc92d54baaf in poll () from /lib64/libc.so.6
#1  0x00007fc929fc838a in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007fc929fca71a in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007fc919a77c78 in QXcbEventQueue::run() () from
/lib64/libQt5XcbQpa.so.5
#4  0x00007fc92b49d690 in QThreadPrivate::start(void*) () from
/lib64/libQt5Core.so.5
#5  0x00007fc929f9d432 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fc92d556913 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc926b7d940 (LWP 10570)):
[KCrash Handler]
#4  0x00007fc92b4d5b73 in QHashData::free_helper(void (*)(QHashData::Node*)) ()
from /lib64/libQt5Core.so.5
#5  0x00007fc92d39eb01 in KFileItemModel::removeItems(KItemRangeList const&,
KFileItemModel::RemoveItemsBehavior) () from /lib64/libdolphinprivate.so.5
#6  0x00007fc92d3aa3d6 in KFileItemModel::setExpanded(int, bool) () from
/lib64/libdolphinprivate.so.5
#7  0x00007fc92d3ba564 in
KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent*, QTransform
const&) () from /lib64/libdolphinprivate.so.5
#8  0x00007fc92d3bd029 in KItemListController::processEvent(QEvent*, QTransform
const&) () from /lib64/libdolphinprivate.so.5
#9  0x00007fc92d3ccba1 in KItemListView::event(QEvent*) () from
/lib64/libdolphinprivate.so.5
#10 0x00007fc92c08e063 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#11 0x00007fc92b631fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#12 0x00007fc92c3acbcd in QGraphicsScenePrivate::sendEvent(QGraphicsItem*,
QEvent*) () from /lib64/libQt5Widgets.so.5
#13 0x00007fc92c3acf81 in
QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) () from
/lib64/libQt5Widgets.so.5
#14 0x00007fc92c3b27c0 in
QGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent*) () from
/lib64/libQt5Widgets.so.5
#15 0x00007fc92c3bf451 in QGraphicsScene::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#16 0x00007fc92c08e063 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#17 0x00007fc92b631fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#18 0x00007fc92c3dc338 in QGraphicsView::mouseReleaseEvent(QMouseEvent*) ()
from /lib64/libQt5Widgets.so.5
#19 0x00007fc92c0cf36e in QWidget::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#20 0x00007fc92c1783b2 in QFrame::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#21 0x00007fc92b631d2e in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /lib64/libQt5Core.so.5
#22 0x00007fc92c08e052 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#23 0x00007fc92c093891 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQt5Widgets.so.5
#24 0x00007fc92b631fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#25 0x00007fc92c09278a in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib64/libQt5Widgets.so.5
#26 0x00007fc92c0e7f82 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from
/lib64/libQt5Widgets.so.5
#27 0x00007fc92c0eadde in QWidgetWindow::event(QEvent*) () from
/lib64/libQt5Widgets.so.5
#28 0x00007fc92c08e063 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQt5Widgets.so.5
#29 0x00007fc92b631fc0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib64/libQt5Core.so.5
#30 0x00007fc92bad716b in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib64/libQt5Gui.so.5
#31 0x00007fc92bab915b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib64/libQt5Gui.so.5
#32 0x00007fc919a78c9e in xcbSourceDispatch(_GSource*, int (*)(void*), void*)
() from /lib64/libQt5XcbQpa.so.5
#33 0x00007fc9295f678f in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
#34 0x00007fc9295f6b18 in g_main_context_iterate.constprop () from
/lib64/libglib-2.0.so.0
#35 0x00007fc9295f6be3 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#36 0x00007fc92b67db73 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQt5Core.so.5
#37 0x00007fc92b63091b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQt5Core.so.5
#38 0x00007fc92b6385a6 in QCoreApplication::exec() () from
/lib64/libQt5Core.so.5
#39 0x00007fc92d66da0d in kdemain () from /lib64/libkdeinit5_dolphin.so
#40 0x00007fc92d47c042 in __libc_start_main () from /lib64/libc.so.6
#41 0x000055fa3ec9f0ae in _start ()
[Inferior 1 (process 10570) detached]

The reporter indicates this bug may be a duplicate of or related to bug 429012.

Possible duplicates by query: bug 430351, bug 430283, bug 430170, bug 429012,
bug 428770.

Reported using DrKonqi

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