Bug 413322

Summary:	Plasma crashes after login
Product:	[Plasma] plasmashell	Reporter:	Julian Leyh <julian>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED FIXED
Severity:	crash	CC:	plasma-bugs
Priority:	NOR	Keywords:	drkonqi
Version:	master
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Julian Leyh 2019-10-22 17:39:21 UTC

Application: plasmashell (5.17.80)

Qt Version: 5.13.1
Frameworks Version: 5.64.0
Operating System: Linux 5.3.6-1-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
Directly after login the desktop background is flickering and goes black. Plasma Taskbar doesn't open. Crash dialog is shown. Other autostarting apps run and I can switch activities and apps normally.

Using NVIDIA drivers and KDE Unstable repos on openSUSE Tumbleweed.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa4a589e580 (LWP 4942))]

Thread 6 (Thread 0x7fa486183700 (LWP 5833)):
#0  0x00007fa4a6379f2d in  () at /usr/lib64/libglib-2.0.so.0
#1  0x00007fa4a637b4dc in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fa4a637cbff in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fa4a637d252 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fa4a637d3cf in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fa4a7bec98b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fa4a7b950cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fa4a79cd021 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fa4869c7c98 in KCupsConnection::run() () at /usr/lib64/libkcupslib.so
#9  0x00007fa4a79ce1a2 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fa4a709bf2a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa4a9f8c4af in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7fa48c857700 (LWP 5707)):
#0  0x00007fa4a9f7d60c in read () at /lib64/libc.so.6
#1  0x00007fa4a63c40bf in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007fa4a637cdfe in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fa4a637d252 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fa4a637d3cf in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fa4a7bec98b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fa4a7b950cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fa4a79cd021 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fa4a96070c6 in  () at /usr/lib64/libQt5Quick.so.5
#9  0x00007fa4a79ce1a2 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fa4a709bf2a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa4a9f8c4af in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7fa48f91f700 (LWP 5287)):
#0  0x00007fa4a70a26a5 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa4a79d40af in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fa4a79d4199 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#3  0x00007fa4a96902f9 in  () at /usr/lib64/libQt5Quick.so.5
#4  0x00007fa4a969059d in  () at /usr/lib64/libQt5Quick.so.5
#5  0x00007fa4a79ce1a2 in  () at /usr/lib64/libQt5Core.so.5
#6  0x00007fa4a709bf2a in start_thread () at /lib64/libpthread.so.0
#7  0x00007fa4a9f8c4af in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7fa4a19a3700 (LWP 5013)):
[KCrash Handler]
#6  0x00007fa4a911da13 in  () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fa4a912115a in  () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fa4a9121481 in  () at /usr/lib64/libQt5Qml.so.5
#9  0x00007fa4a911c21c in  () at /usr/lib64/libQt5Qml.so.5
#10 0x00007fa4a92a546b in  () at /usr/lib64/libQt5Qml.so.5
#11 0x00007fa4a92acc61 in  () at /usr/lib64/libQt5Qml.so.5
#12 0x00007fa4a92a4a3d in QQmlDataBlob::tryDone() () at /usr/lib64/libQt5Qml.so.5
#13 0x00007fa4a92a65cf in QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::SourceCodeData const&) () at /usr/lib64/libQt5Qml.so.5
#14 0x00007fa4a92a6e99 in QQmlTypeLoader::setData(QQmlDataBlob*, QString const&) () at /usr/lib64/libQt5Qml.so.5
#15 0x00007fa4a92a6fc9 in QQmlTypeLoader::loadThread(QQmlDataBlob*) () at /usr/lib64/libQt5Qml.so.5
#16 0x00007fa4a92a71cd in  () at /usr/lib64/libQt5Qml.so.5
#17 0x00007fa4a93186e8 in  () at /usr/lib64/libQt5Qml.so.5
#18 0x00007fa4a9318db2 in  () at /usr/lib64/libQt5Qml.so.5
#19 0x00007fa4a8626c62 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#20 0x00007fa4a86301e0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#21 0x00007fa4a7b96562 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#22 0x00007fa4a7b991f8 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#23 0x00007fa4a7bed333 in  () at /usr/lib64/libQt5Core.so.5
#24 0x00007fa4a637d0bd in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#25 0x00007fa4a637d340 in  () at /usr/lib64/libglib-2.0.so.0
#26 0x00007fa4a637d3cf in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#27 0x00007fa4a7bec971 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#28 0x00007fa4a7b950cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#29 0x00007fa4a79cd021 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#30 0x00007fa4a93183b5 in  () at /usr/lib64/libQt5Qml.so.5
#31 0x00007fa4a79ce1a2 in  () at /usr/lib64/libQt5Core.so.5
#32 0x00007fa4a709bf2a in start_thread () at /lib64/libpthread.so.0
#33 0x00007fa4a9f8c4af in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7fa4a2c17700 (LWP 4978)):
#0  0x00007fa4a7beb280 in QTimerInfoList::timerWait(timespec&) () at /usr/lib64/libQt5Core.so.5
#1  0x00007fa4a7bec6ee in  () at /usr/lib64/libQt5Core.so.5
#2  0x00007fa4a637c82f in g_main_context_prepare () at /usr/lib64/libglib-2.0.so.0
#3  0x00007fa4a637d1db in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007fa4a637d3cf in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007fa4a7bec98b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007fa4a7b950cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007fa4a79cd021 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007fa4a8c114f6 in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007fa4a79ce1a2 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007fa4a709bf2a in start_thread () at /lib64/libpthread.so.0
#11 0x00007fa4a9f8c4af in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fa4a589e580 (LWP 4942)):
#0  0x00007fa4a70a26a5 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fa4a79d40af in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib64/libQt5Core.so.5
#2  0x00007fa4a79d4199 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib64/libQt5Core.so.5
#3  0x00007fa4a9318a67 in  () at /usr/lib64/libQt5Qml.so.5
#4  0x00007fa4a92b48b5 in void QQmlTypeLoader::doLoad<PlainLoader>(PlainLoader const&, QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib64/libQt5Qml.so.5
#5  0x00007fa4a92a7236 in QQmlTypeLoader::load(QQmlDataBlob*, QQmlTypeLoader::Mode) () at /usr/lib64/libQt5Qml.so.5
#6  0x00007fa4a92a7f38 in QQmlTypeLoader::getType(QUrl const&, QQmlTypeLoader::Mode) () at /usr/lib64/libQt5Qml.so.5
#7  0x00007fa4a9280209 in QQmlComponentPrivate::loadUrl(QUrl const&, QQmlComponent::CompilationMode) () at /usr/lib64/libQt5Qml.so.5
#8  0x00007fa4a999b044 in KDeclarative::QmlObject::setSource(QUrl const&) () at /usr/lib64/libKF5Declarative.so.5
#9  0x00007fa4a9e78f0e in PlasmaQuick::AppletQuickItem::init() () at /usr/lib64/libKF5PlasmaQuick.so.5
#10 0x00007fa4a19ccd20 in  () at /usr/lib64/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#11 0x00007fa4a9e75f61 in PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () at /usr/lib64/libKF5PlasmaQuick.so.5
#12 0x00007fa4a96ce8a5 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () at /usr/lib64/libQt5Quick.so.5
#13 0x00007fa4a96d2afa in QQuickItemPrivate::refWindow(QQuickWindow*) () at /usr/lib64/libQt5Quick.so.5
#14 0x00007fa4a96d55d4 in QQuickItem::setParentItem(QQuickItem*) () at /usr/lib64/libQt5Quick.so.5
#15 0x00007fa4a96d904e in  () at /usr/lib64/libQt5Quick.so.5
#16 0x00007fa4a96d953b in QQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libQt5Quick.so.5
#17 0x00007fa4a9e78c86 in PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libKF5PlasmaQuick.so.5
#18 0x00007fa4a19cf166 in  () at /usr/lib64/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#19 0x00007fa4a7ba2f9b in QMetaProperty::write(QObject*, QVariant const&) const () at /usr/lib64/libQt5Core.so.5
#20 0x00007fa4a7bc9e2e in QObject::setProperty(char const*, QVariant const&) () at /usr/lib64/libQt5Core.so.5
#21 0x00007fa4a19c0fd1 in  () at /usr/lib64/qt5/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#22 0x00007fa4a7bc1638 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#23 0x00007fa4a9a086ef in Plasma::Containment::appletAdded(Plasma::Applet*) () at /usr/lib64/libKF5Plasma.so.5
#24 0x00007fa4a9a0c3cf in Plasma::Containment::addApplet(Plasma::Applet*) () at /usr/lib64/libKF5Plasma.so.5
#25 0x00007fa4a072440a in  () at /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#26 0x00007fa4a072493f in  () at /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#27 0x00007fa4a0725287 in  () at /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#28 0x00007fa4a0725436 in  () at /usr/lib64/qt5/plugins/plasma/applets/org.kde.plasma.private.systemtray.so
#29 0x00007fa4a7bc1638 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#30 0x00007fa4a8c7393f in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /usr/lib64/libQt5DBus.so.5
#31 0x00007fa4a8c73a40 in  () at /usr/lib64/libQt5DBus.so.5
#32 0x00007fa4a7bc1eea in QObject::event(QEvent*) () at /usr/lib64/libQt5Core.so.5
#33 0x00007fa4a8626c62 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#34 0x00007fa4a86301e0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#35 0x00007fa4a7b96562 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#36 0x00007fa4a7b991f8 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQt5Core.so.5
#37 0x00007fa4a7bed333 in  () at /usr/lib64/libQt5Core.so.5
#38 0x00007fa4a637d0bd in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#39 0x00007fa4a637d340 in  () at /usr/lib64/libglib-2.0.so.0
#40 0x00007fa4a637d3cf in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#41 0x00007fa4a7bec971 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#42 0x00007fa4a7b950cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#43 0x00007fa4a7b9cd32 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#44 0x0000560500e39784 in  ()
#45 0x00007fa4a9eb3e0b in __libc_start_main () at /lib64/libc.so.6
#46 0x0000560500e3a3ba in _start ()
[Inferior 1 (process 4942) detached]

Possible duplicates by query: bug 413319, bug 413301, bug 413291, bug 413273, bug 413252.

Reported using DrKonqi

Comment 1 Julian Leyh 2019-10-26 13:50:25 UTC

Thanks to the comment in #opensuse-kde, the bug is fixed by deleting the folder ~/.cache/plasmashell/qmlcache