Bug 355957

Summary:	icon task manager crashed
Product:	[Plasma] plasmashell	Reporter:	AJ <tandon1000>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	bshah, plasma-bugs-null
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.4.3
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description AJ 2015-11-26 17:52:39 UTC

Application: plasmashell (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.2.6-1-MANJARO x86_64
Distribution: "Netrunner Rolling"

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

Selected an application on the icon task manager. The icons manager crashed and my screen had some black areas.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb344ec7800 (LWP 793))]

Thread 10 (Thread 0x7fb32c70e700 (LWP 822)):
#0  0x00007fb33e36118d in poll () from /usr/lib/libc.so.6
#1  0x00007fb3433b8ae2 in ?? () from /usr/lib/libxcb.so.1
#2  0x00007fb3433ba757 in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3  0x00007fb32e872e89 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7fb32969e700 (LWP 958)):
#0  0x00007fb33a845612 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007fb33a8009e9 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007fb33a800f60 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007fb33ec9a36b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fb33ea5d9c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007fb341e2cc85 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7fb319556700 (LWP 959)):
#0  0x00007fb33e36118d in poll () from /usr/lib/libc.so.6
#1  0x00007fb33a800fbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb33ec9a36b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33ea5d9c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fb341e2cc85 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7fb31386a700 (LWP 962)):
#0  0x00007fb33ea5aaba in QMutex::lock() () from /usr/lib/libQt5Core.so.5
#1  0x00007fb33ec99bc9 in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007fb33a8009f1 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb33a800f60 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007fb33ec9a36b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fb33ea5d9c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007fb341e2cc85 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7fb311e1c700 (LWP 963)):
#0  0x00007fb33db6f07f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb3446555e4 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007fb344655629 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7fb28a77d700 (LWP 964)):
#0  0x00007fb33e35d16d in read () from /usr/lib/libc.so.6
#1  0x00007fb335adef45 in ?? () from /usr/lib/libnvidia-tls.so.340.93
#2  0x00007fb33a844270 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb33a800aa4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#4  0x00007fb33a800f60 in ?? () from /usr/lib/libglib-2.0.so.0
#5  0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#6  0x00007fb33ec9a36b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#8  0x00007fb33ea5d9c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#9  0x00007fb3429eb486 in ?? () from /usr/lib/libQt5Quick.so.5
#10 0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7fb289239700 (LWP 966)):
#0  0x00007fb33db6f07f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb33ea63bfb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb342a60a9e in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007fb342a61323 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7fb273853700 (LWP 989)):
#0  0x00007fb33e36118d in poll () from /usr/lib/libc.so.6
#1  0x00007fb33a800fbc in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007fb33ec9a36b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33ea5d9c4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007fb275d72bc7 in KCupsConnection::run() () from /usr/lib/libkcupslib.so
#7  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7fb270fe1700 (LWP 995)):
#0  0x00007fb33db6f07f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007fb33ea63bfb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQt5Core.so.5
#2  0x00007fb342a60a9e in ?? () from /usr/lib/libQt5Quick.so.5
#3  0x00007fb342a61323 in ?? () from /usr/lib/libQt5Quick.so.5
#4  0x00007fb33ea6296e in ?? () from /usr/lib/libQt5Core.so.5
#5  0x00007fb33db694a4 in start_thread () from /usr/lib/libpthread.so.0
#6  0x00007fb33e36a13d in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7fb344ec7800 (LWP 793)):
[KCrash Handler]
#5  0x00007fb341db6f40 in QQmlBoundSignalExpression::function() const () from /usr/lib/libQt5Qml.so.5
#6  0x00007fb341db6ff0 in QQmlBoundSignalExpression::sourceLocation() const () from /usr/lib/libQt5Qml.so.5
#7  0x00007fb341d96e58 in QQmlData::destroyed(QObject*) () from /usr/lib/libQt5Qml.so.5
#8  0x00007fb33ec7a1e4 in QObject::~QObject() () from /usr/lib/libQt5Core.so.5
#9  0x00007fb342a7df8d in QQuickItem::~QQuickItem() () from /usr/lib/libQt5Quick.so.5
#10 0x00007fb342a98a36 in ?? () from /usr/lib/libQt5Quick.so.5
#11 0x00007fb33ec73010 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#12 0x00007fb342a7c80b in QQuickItem::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#13 0x00007fb34000f01c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#14 0x00007fb3400144f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#15 0x00007fb33ec439ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#16 0x00007fb33ec45da6 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#17 0x00007fb33ec99f43 in ?? () from /usr/lib/libQt5Core.so.5
#18 0x00007fb33a800dc7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007fb33a801020 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007fb33ec9a34f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#22 0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#23 0x00007fb33f1975c2 in QBasicDrag::drag(QDrag*) () from /usr/lib/libQt5Gui.so.5
#24 0x00007fb33f1b01e9 in QDragManager::drag(QDrag*) () from /usr/lib/libQt5Gui.so.5
#25 0x00007fb33f1af5c7 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () from /usr/lib/libQt5Gui.so.5
#26 0x00007fb280f3e665 in ?? () from /usr/lib/qt/qml/org/kde/plasma/private/expandingiconstaskmanager/libexpandingiconstaskmanagerplugin.so
#27 0x00007fb280f41f25 in ?? () from /usr/lib/qt/qml/org/kde/plasma/private/expandingiconstaskmanager/libexpandingiconstaskmanagerplugin.so
#28 0x00007fb341deabd9 in ?? () from /usr/lib/libQt5Qml.so.5
#29 0x00007fb341d68b8c in ?? () from /usr/lib/libQt5Qml.so.5
#30 0x00007fb341d6a3ac in ?? () from /usr/lib/libQt5Qml.so.5
#31 0x00007fb341d6abbd in QV4::QObjectMethod::callInternal(QV4::CallData*) () from /usr/lib/libQt5Qml.so.5
#32 0x00007fb341d81723 in QV4::Runtime::callProperty(QV4::ExecutionEngine*, int, QV4::CallData*) () from /usr/lib/libQt5Qml.so.5
#33 0x00007fb3235785c0 in ?? ()
#34 0x000000341286b0d8 in ?? ()
#35 0x00007fb341e1c1ba in QV4::QmlContextWrapper::registerQmlDependencies(QV4::ExecutionEngine*, QV4::CompiledData::Function const*) () from /usr/lib/libQt5Qml.so.5
#36 0x00007fb341d21caa in ?? () from /usr/lib/libQt5Qml.so.5
#37 0x00007fb341e11faf in ?? () from /usr/lib/libQt5Qml.so.5
#38 0x00007fb341db8386 in QQmlBoundSignalExpression::evaluate(void**) () from /usr/lib/libQt5Qml.so.5
#39 0x00007fb341db8c3b in ?? () from /usr/lib/libQt5Qml.so.5
#40 0x00007fb341df545e in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/libQt5Qml.so.5
#41 0x00007fb341d97eec in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/libQt5Qml.so.5
#42 0x00007fb33ec71a30 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#43 0x00007fb342bbd192 in QQuickMouseArea::positionChanged(QQuickMouseEvent*) () from /usr/lib/libQt5Quick.so.5
#44 0x00007fb342af7669 in QQuickMouseArea::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQt5Quick.so.5
#45 0x00007fb342a7c5a8 in QQuickItem::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#46 0x00007fb34000f01c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#47 0x00007fb3400144f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#48 0x00007fb33ec439ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#49 0x00007fb342a8b873 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () from /usr/lib/libQt5Quick.so.5
#50 0x00007fb342a8bc32 in QQuickWindowPrivate::deliverMouseEvent(QMouseEvent*) () from /usr/lib/libQt5Quick.so.5
#51 0x00007fb342a91f30 in QQuickWindow::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQt5Quick.so.5
#52 0x00007fb33f1abf75 in QWindow::event(QEvent*) () from /usr/lib/libQt5Gui.so.5
#53 0x00007fb342a93121 in QQuickWindow::event(QEvent*) () from /usr/lib/libQt5Quick.so.5
#54 0x000000000044595b in PanelView::event(QEvent*) ()
#55 0x00007fb34000f01c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#56 0x00007fb3400144f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#57 0x00007fb33ec439ab in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#58 0x00007fb33f1a3111 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/libQt5Gui.so.5
#59 0x00007fb33f1a4de5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/libQt5Gui.so.5
#60 0x00007fb33f18a208 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Gui.so.5
#61 0x00007fb32e8a43c0 in ?? () from /usr/lib/libQt5XcbQpa.so.5
#62 0x00007fb33a800dc7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#63 0x00007fb33a801020 in ?? () from /usr/lib/libglib-2.0.so.0
#64 0x00007fb33a8010cc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#65 0x00007fb33ec9a34f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#66 0x00007fb33ec4137a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#67 0x00007fb33ec4933c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#68 0x00000000004300f3 in main ()

Possible duplicates by query: bug 355251, bug 355223, bug 354903, bug 352178, bug 351090.

Reported using DrKonqi

Comment 1 David Edmundson 2015-11-29 14:50:22 UTC

>#25 0x00007fb33f1af5c7 in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () from /usr/lib/libQt5Gui.so.5

Again with the "no spawning event loops in the main thread from QML".

Comment 2 David Edmundson 2015-12-28 16:31:01 UTC


*** This bug has been marked as a duplicate of bug 355491 ***