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
>#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".
*** This bug has been marked as a duplicate of bug 355491 ***