384862 – plasmashell segfault

Bug 384862 - plasmashell segfault

Summary: plasmashell segfault

Status:	RESOLVED FIXED

Alias:	None

Product:	plasmashell
Classification:	Plasma
Component:	Folder (show other bugs)
Version:	5.9.5
Platform:	Fedora RPMs Linux

Importance:	NOR crash
Target Milestone:	1.0
Assignee:	Eike Hein

URL:
Keywords:	drkonqi

Duplicates (2):	397051 399794 (view as bug list)
Depends on:
Blocks:

Reported:	2017-09-19 19:01 UTC by Mita Lapo
Modified:	2018-11-08 22:48 UTC (History)
CC List:	4 users (show)

See Also:
Latest Commit:	https://commits.kde.org/plasma-desktop/3485b7d30efa2fadf695391bd7947aac0cded819
Version Fixed In:	5.12.7

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Description Mita Lapo 2017-09-19 19:01:49 UTC

Application: plasmashell (5.9.5)

Qt Version: 5.7.1
Frameworks Version: 5.36.0
Operating System: Linux 4.11.12-200.fc25.x86_64 x86_64
Distribution: "Fedora release 25 (Twenty Five)"

-- Information about the crash:
- What I was doing when the application crashed:

It was the first time I logged in to this account with plasma.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4ba3f37040 (LWP 11585))]

Thread 7 (Thread 0x7f4ae6676700 (LWP 12020)):
#0  0x00007f4bb1813d83 in QMutex::unlock() () at /lib64/libQt5Core.so.5
#1  0x00007f4bb1a095c1 in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#2  0x00007f4ba996669d in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#3  0x00007f4ba996708b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f4bb1a096eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f4bb18175e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f4ae81712c7 in KCupsConnection::run() () at /lib64/libkcupslib.so
#9  0x00007f4bb181b9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f4b79d4b700 (LWP 11888)):
#0  0x00007f4baff59460 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f4bb74db2f4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007f4bb74db339 in  () at /lib64/libQt5Script.so.5
#3  0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#4  0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f4b7a54c700 (LWP 11887)):
#0  0x00007f4ba996428b in g_source_iter_clear () at /lib64/libglib-2.0.so.0
#1  0x00007f4ba9966788 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f4ba996708b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f4bb1a096eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f4bb18175e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f4bb541a8b6 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#8  0x00007f4bb181b9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#10 0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f4b8706c700 (LWP 11786)):
#0  0x00007f4bb0c02ecd in poll () at /lib64/libc.so.6
#1  0x00007f4ba9967166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f4bb1a096eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4bb18175e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4bb4a904a5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007f4bb181b9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f4b92925700 (LWP 11776)):
#0  0x00007f4bb0bfea9d in read () at /lib64/libc.so.6
#1  0x00007f4ba99ab4d0 in g_wakeup_acknowledge () at /lib64/libglib-2.0.so.0
#2  0x00007f4ba9966c83 in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f4ba9967104 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f4bb1a096eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f4bb18175e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f4bb4a904a5 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007f4bb181b9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#11 0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f4ba3f30700 (LWP 11613)):
#0  0x00007f4bb0c02ecd in poll () at /lib64/libc.so.6
#1  0x00007f4ba9967166 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007f4bb1a096eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f4bb18175e3 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007f4bb20b9fb9 in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#7  0x00007f4bb181b9ca in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007f4baff5373a in start_thread () at /lib64/libpthread.so.0
#9  0x00007f4bb0c0ee0f in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f4ba3f37040 (LWP 11585)):
[KCrash Handler]
#6  0x00007f4bb0635924 in KIO::FileUndoManager::undo() () at /lib64/libKF5KIOWidgets.so.5
#7  0x00007f4bb19e2721 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#8  0x00007f4bb22814b2 in QAction::triggered(bool) () at /lib64/libQt5Widgets.so.5
#9  0x00007f4bb2283ee2 in QAction::activate(QAction::ActionEvent) () at /lib64/libQt5Widgets.so.5
#10 0x00007f4bb228449f in QAction::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Widgets.so.5
#11 0x00007f4bb2284964 in QAction::qt_metacall(QMetaObject::Call, int, void**) () at /lib64/libQt5Widgets.so.5
#12 0x00007f4bb4a49249 in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const () at /lib64/libQt5Qml.so.5
#13 0x00007f4bb49d896f in CallMethod(QQmlObjectOrGadget const&, int, int, int, int*, QV4::ExecutionEngine*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#14 0x00007f4bb49d8e29 in CallPrecise(QQmlObjectOrGadget const&, QQmlPropertyData const&, QV4::ExecutionEngine*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#15 0x00007f4bb49d9785 in QV4::QObjectMethod::callInternal(QV4::CallData*) const () at /lib64/libQt5Qml.so.5
#16 0x00007f4bb49db923 in QV4::QObjectSlotDispatcher::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () at /lib64/libQt5Qml.so.5
#17 0x00007f4bb19e2a56 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#18 0x00007f4bb22814b2 in QAction::triggered(bool) () at /lib64/libQt5Widgets.so.5
#19 0x00007f4bb2283ee2 in QAction::activate(QAction::ActionEvent) () at /lib64/libQt5Widgets.so.5
#20 0x00007f4bb228449f in QAction::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Widgets.so.5
#21 0x00007f4bb2284964 in QAction::qt_metacall(QMetaObject::Call, int, void**) () at /lib64/libQt5Widgets.so.5
#22 0x00007f4bb4a49249 in QQmlObjectOrGadget::metacall(QMetaObject::Call, int, void**) const () at /lib64/libQt5Qml.so.5
#23 0x00007f4bb49d896f in CallMethod(QQmlObjectOrGadget const&, int, int, int, int*, QV4::ExecutionEngine*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#24 0x00007f4bb49d8e29 in CallPrecise(QQmlObjectOrGadget const&, QQmlPropertyData const&, QV4::ExecutionEngine*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#25 0x00007f4bb49d9785 in QV4::QObjectMethod::callInternal(QV4::CallData*) const () at /lib64/libQt5Qml.so.5
#26 0x00007f4bb49eeee1 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#27 0x00007f4b7b0ef290 in  ()
#28 0x0000001be9ca3240 in  ()
#29 0x00007ffc13bd0080 in  ()
#30 0x000007e18606d530 in  ()
#31 0x0003400000000000 in  ()
#32 0x0000000004adc11b in  ()
#33 0x00007ffc13bd00f4 in  ()
#34 0x00007f4b8606d370 in  ()
#35 0x00007f4b8606d368 in  ()
#36 0x00007f4b8606d010 in  ()
#37 0x00007f4bb498758b in QV4::SimpleScriptFunction::call(QV4::Managed const*, QV4::CallData*) () at /lib64/libQt5Qml.so.5
#38 0x00007f4bb4a74cb7 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /lib64/libQt5Qml.so.5
#39 0x00007f4bb4a1b186 in QQmlBoundSignalExpression::evaluate(void**) () at /lib64/libQt5Qml.so.5
#40 0x00007f4bb4a1c31b in QQmlBoundSignal_callback(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#41 0x00007f4bb4a526b4 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /lib64/libQt5Qml.so.5
#42 0x00007f4bb49fd39c in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /lib64/libQt5Qml.so.5
#43 0x00007f4bb19e2ddb in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#44 0x00007f4bb55f50f2 in QQuickMouseArea::clicked(QQuickMouseEvent*) () at /lib64/libQt5Quick.so.5
#45 0x00007f4bb5526d6e in QQuickMouseArea::setPressed(Qt::MouseButton, bool, Qt::MouseEventSource) () at /lib64/libQt5Quick.so.5
#46 0x00007f4bb5527915 in QQuickMouseArea::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQt5Quick.so.5
#47 0x00007f4bb54a49b8 in QQuickItem::event(QEvent*) () at /lib64/libQt5Quick.so.5
#48 0x00007f4bb2287ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#49 0x00007f4bb228f671 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#50 0x00007f4bb19bb6fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#51 0x00007f4bb54b74ff in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /lib64/libQt5Quick.so.5
#52 0x00007f4bb54b7d70 in QQuickWindowPrivate::deliverMouseEvent(QMouseEvent*) () at /lib64/libQt5Quick.so.5
#53 0x00007f4bb54b9fb0 in QQuickWindow::mouseReleaseEvent(QMouseEvent*) () at /lib64/libQt5Quick.so.5
#54 0x00007f4bb1cfd8a5 in QWindow::event(QEvent*) () at /lib64/libQt5Gui.so.5
#55 0x00007f4bb54bf665 in QQuickWindow::event(QEvent*) () at /lib64/libQt5Quick.so.5
#56 0x00007f4bb76117eb in PlasmaQuick::Dialog::event(QEvent*) () at /lib64/libKF5PlasmaQuick.so.5
#57 0x00007f4bb2287ecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#58 0x00007f4bb228f671 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#59 0x00007f4bb19bb6fa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#60 0x00007f4bb1cf22b3 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /lib64/libQt5Gui.so.5
#61 0x00007f4bb1cf3d85 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /lib64/libQt5Gui.so.5
#62 0x00007f4bb1cd4c4b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Gui.so.5
#63 0x00007f4b9cabd6c0 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5XcbQpa.so.5
#64 0x00007f4ba9966e52 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#65 0x00007f4ba99671d0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#66 0x00007f4ba996727c in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#67 0x00007f4bb1a096cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#68 0x00007f4bb19ba68a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#69 0x00007f4bb19c218c in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#70 0x000000b3e93a2192 in main ()

Reported using DrKonqi

Comment 1 Kai Uwe Broulik 2018-08-01 11:43:29 UTC

*** Bug 397051 has been marked as a duplicate of this bug. ***

Comment 2 Kai Uwe Broulik 2018-08-01 11:55:15 UTC

The other patch says "clicked on desktop toolbox and chose 'Undo'", I can crash plasmashell this way because the action is enabled initially

Comment 3 Kai Uwe Broulik 2018-08-01 14:27:40 UTC

Git commit 3485b7d30efa2fadf695391bd7947aac0cded819 by Kai Uwe Broulik.
Committed on 01/08/2018 at 14:27.
Pushed by broulik into branch 'Plasma/5.12'.

[Desktop Toolbox] Emit contextualActionsAboutToShow before opening

The toolbox shows containment-specific actions, just like the desktop contextmenu does.
The containment may update or creates its actions on-demand leading to outdated actions showing up in the toolbox.
FIXED-IN: 5.12.7

Differential Revision: https://phabricator.kde.org/D14535

M  +2    -0    toolboxes/desktoptoolbox/contents/ui/ToolBoxRoot.qml

https://commits.kde.org/plasma-desktop/3485b7d30efa2fadf695391bd7947aac0cded819

Comment 4 Christoph Feck 2018-11-08 22:46:05 UTC

*** Bug 399794 has been marked as a duplicate of this bug. ***

Comment 5 Christoph Feck 2018-11-08 22:48:54 UTC

Was this fix merged into 5.13 branch? Last duplicate is from 5.13.5.