Bug 484030

Application: plasmashell (6.0.2)

Qt Version: 6.6.2
Frameworks Version: 6.0.0
Operating System: Linux 6.7.6-201.fsync.fc39.x86_64 x86_64
Windowing System: Wayland
Distribution: Nobara Linux 39 (KDE Plasma)
DrKonqi: 6.0.2 [CoredumpBackend]

-- Information about the crash:
I wasn't doing anything noteworthy, just downloading and trying theme's via the built in "get new" function for downloading themes.   I tried going back to the original Breeze Dark theme, and it did not apply correctly.   I figured this could be remedied by restarting the machine, but after logging in to my user account,  I was greeted with a black screen and a "Plasmashell - Crash Handler" message.   I can open programs via terminal, but I have no desktop background picture, and no taskbar.   If I hover my mouse over where the taskbar would be, and get about 10 or more Plasmashell crash handler messages.   I've tried to updates, and while I can update fine, it doesn't fix the issue.   I'm using Nobara 39.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: plasmashell (plasmashell), signal: Segmentation fault


This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) [answered N; input not from terminal]
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
[New LWP 50247]
[New LWP 50072]
[New LWP 50122]
[New LWP 50121]
[New LWP 49985]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/plasmashell --no-respawn'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fe6fa8ae834 in __pthread_kill_implementation () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7fe6e52006c0 (LWP 50247))]
Cannot QML trace cores :(
[Current thread is 1 (Thread 0x7fe6e52006c0 (LWP 50247))]

Thread 5 (Thread 0x7fe6f5d54b00 (LWP 49985)):
#0  0x00007fe6fa8a9169 in __futex_abstimed_wait_common () at /lib64/libc.so.6
#1  0x00007fe6fa8abb09 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#2  0x00007fe6fb158d7b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#3  0x00007fe6fc4fbeed in QQmlThread::internalCallMethodInThread(QQmlThread::Message*) () at /lib64/libQt6Qml.so.6
#4  0x00007fe6fc64ff42 in QQmlTypeLoader::load(QQmlDataBlob*, QQmlTypeLoader::Mode) () at /lib64/libQt6Qml.so.6
#5  0x00007fe6fc650628 in QQmlTypeLoader::getType(QUrl const&, QQmlTypeLoader::Mode) () at /lib64/libQt6Qml.so.6
#6  0x00007fe6fc52c625 in QQmlComponentPrivate::loadUrl(QUrl const&, QQmlComponent::CompilationMode) () at /lib64/libQt6Qml.so.6
#7  0x00007fe6fdf4976c in PlasmaQuick::SharedQmlEngine::setSource(QUrl const&) () at /lib64/libPlasmaQuick.so.6
#8  0x00007fe6fdf616a9 in ContainmentItem::loadWallpaper() () at /lib64/libPlasmaQuick.so.6
#9  0x00007fe6fdf61fa7 in ContainmentItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () at /lib64/libPlasmaQuick.so.6
#10 0x00007fe6fca3ee5b in QQuickItemPrivate::refWindow(QQuickWindow*) () at /lib64/libQt6Quick.so.6
#11 0x00007fe6fca3f29d in QQuickItem::setParentItem(QQuickItem*) () at /lib64/libQt6Quick.so.6
#12 0x00007fe6fdf4426a in PlasmaQuick::ContainmentViewPrivate::setContainment(Plasma::Containment*) () at /lib64/libPlasmaQuick.so.6
#13 0x00005594fe1b6d36 in ShellCorona::addOutput(QScreen*) ()
#14 0x00005594fe1ba6df in ShellCorona::loadDefaultLayout() ()
#15 0x00007fe6fda91c05 in Plasma::Corona::loadLayout(QString const&) () at /lib64/libPlasma.so.6
#16 0x00005594fe1bb932 in ShellCorona::load() ()
#17 0x00007fe6fb001951 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt6Core.so.6
#18 0x00007fe6fd982313 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () at /lib64/libPlasmaActivities.so.6
#19 0x00007fe6fb001951 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt6Core.so.6
#20 0x00007fe6fd98fee3 in KActivities::ActivitiesCache::setAllActivities(QList<ActivityInfo> const&) () at /lib64/libPlasmaActivities.so.6
#21 0x00007fe6fd993454 in KActivities::ActivitiesCache::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libPlasmaActivities.so.6
#22 0x00007fe6fb001ed8 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt6Core.so.6
#23 0x00007fe6fc0191b1 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /lib64/libQt6DBus.so.6
#24 0x00007fe6faff2f87 in QObject::event(QEvent*) () at /lib64/libQt6Core.so.6
#25 0x00007fe6fd1c3228 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt6Widgets.so.6
#26 0x00007fe6fafa0948 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt6Core.so.6
#27 0x00007fe6fafa4845 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt6Core.so.6
#28 0x00007fe6fb26c86f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt6Core.so.6
#29 0x00007fe6f9aede5c in g_main_context_dispatch_unlocked.lto_priv () at /lib64/libglib-2.0.so.0
#30 0x00007fe6f9b48f18 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#31 0x00007fe6f9aebad3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#32 0x00007fe6fb26c11f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#33 0x00007fe6fafad70b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#34 0x00007fe6fafa950d in QCoreApplication::exec() () at /lib64/libQt6Core.so.6
#35 0x00005594fe182dfa in main ()

Thread 4 (Thread 0x7fe6e76006c0 (LWP 50121)):
#0  0x00007fe6fa8a9169 in __futex_abstimed_wait_common () at /lib64/libc.so.6
#1  0x00007fe6fa8abb09 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libc.so.6
#2  0x00007fe6fb158d7b in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt6Core.so.6
#3  0x00007fe6fd878f59 in QtWaylandClient::EventThread::run() () at /lib64/libQt6WaylandClient.so.6
#4  0x00007fe6fb15015e in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#5  0x00007fe6fa8ac897 in start_thread () at /lib64/libc.so.6
#6  0x00007fe6fa93380c in clone3 () at /lib64/libc.so.6

Thread 3 (Thread 0x7fe6e6c006c0 (LWP 50122)):
#0  0x00007fe6fa925bed in poll () at /lib64/libc.so.6
#1  0x00007fe6fd878fbf in QtWaylandClient::EventThread::run() () at /lib64/libQt6WaylandClient.so.6
#2  0x00007fe6fb15015e in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#3  0x00007fe6fa8ac897 in start_thread () at /lib64/libc.so.6
#4  0x00007fe6fa93380c in clone3 () at /lib64/libc.so.6

Thread 2 (Thread 0x7fe6e84006c0 (LWP 50072)):
#0  0x00007fe6fa925bed in poll () at /lib64/libc.so.6
#1  0x00007fe6f9b48eb4 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#2  0x00007fe6f9aebad3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007fe6fb26c11f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#4  0x00007fe6fafad70b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#5  0x00007fe6fb0b55cf in QThread::exec() () at /lib64/libQt6Core.so.6
#6  0x00007fe6fbfbb181 in QDBusConnectionManager::run() () at /lib64/libQt6DBus.so.6
#7  0x00007fe6fb15015e in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#8  0x00007fe6fa8ac897 in start_thread () at /lib64/libc.so.6
#9  0x00007fe6fa93380c in clone3 () at /lib64/libc.so.6

Thread 1 (Thread 0x7fe6e52006c0 (LWP 50247)):
[KCrash Handler]
#4  0x00007fe6fc616894 in QQmlType::QQmlType(QQmlType const&) () at /lib64/libQt6Qml.so.6
#5  0x00007fe6fc62f682 in QQmlPropertyCacheCreator<QQmlTypeCompiler>::propertyCacheForObject(QmlIR::Object const*, QQmlBindingInstantiationContext const&, QQmlError*) const () at /lib64/libQt6Qml.so.6
#6  0x00007fe6fc632596 in QQmlPropertyCacheCreator<QQmlTypeCompiler>::buildMetaObjectRecursively(int, QQmlBindingInstantiationContext const&, QQmlPropertyCacheCreator<QQmlTypeCompiler>::VMEMetaObjectIsRequired) () at /lib64/libQt6Qml.so.6
#7  0x00007fe6fc632948 in QQmlPropertyCacheCreator<QQmlTypeCompiler>::buildMetaObjectRecursively(int, QQmlBindingInstantiationContext const&, QQmlPropertyCacheCreator<QQmlTypeCompiler>::VMEMetaObjectIsRequired) () at /lib64/libQt6Qml.so.6
#8  0x00007fe6fc632f95 in QQmlPropertyCacheCreator<QQmlTypeCompiler>::buildMetaObjectsIncrementally() () at /lib64/libQt6Qml.so.6
#9  0x00007fe6fc624af2 in QQmlTypeCompiler::compile() () at /lib64/libQt6Qml.so.6
#10 0x00007fe6fc634e37 in QQmlTypeData::compile(QQmlRefPointer<QQmlTypeNameCache> const&, QV4::ResolvedTypeReferenceMap*, std::function<QByteArray ()> const&) () at /lib64/libQt6Qml.so.6
#11 0x00007fe6fc63b678 in QQmlTypeData::done() () at /lib64/libQt6Qml.so.6
#12 0x00007fe6fc53b155 in QQmlDataBlob::tryDone() () at /lib64/libQt6Qml.so.6
#13 0x00007fe6fc64d818 in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob> const&, QQmlDataBlob::SourceCodeData const&) () at /lib64/libQt6Qml.so.6
#14 0x00007fe6fc64dbcb in QQmlTypeLoader::setData(QQmlRefPointer<QQmlDataBlob> const&, QString const&) () at /lib64/libQt6Qml.so.6
#15 0x00007fe6fc64fcd2 in QQmlTypeLoader::loadThread(QQmlRefPointer<QQmlDataBlob> const&) () at /lib64/libQt6Qml.so.6
#16 0x00007fe6fc65d41c in QQmlThread::createMessageFromMethod<void (QQmlTypeLoaderThread::*)(QQmlRefPointer<QQmlDataBlob> const&), QQmlRefPointer<QQmlDataBlob> const&>(void (QQmlTypeLoaderThread::*&&)(QQmlRefPointer<QQmlDataBlob> const&), QQmlRefPointer<QQmlDataBlob> const&)::I::call(QQmlThread*) () at /lib64/libQt6Qml.so.6
#17 0x00007fe6fc4fb9ee in QQmlThreadPrivate::threadEvent() () at /lib64/libQt6Qml.so.6
#18 0x00007fe6fc4fc46d in QQmlThreadPrivate::event(QEvent*) () at /lib64/libQt6Qml.so.6
#19 0x00007fe6fd1c3228 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt6Widgets.so.6
#20 0x00007fe6fafa0948 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt6Core.so.6
#21 0x00007fe6fafa4845 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt6Core.so.6
#22 0x00007fe6fb26c86f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt6Core.so.6
#23 0x00007fe6f9aede5c in g_main_context_dispatch_unlocked.lto_priv () at /lib64/libglib-2.0.so.0
#24 0x00007fe6f9b48f18 in g_main_context_iterate_unlocked.isra () at /lib64/libglib-2.0.so.0
#25 0x00007fe6f9aebad3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#26 0x00007fe6fb26c11f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#27 0x00007fe6fafad70b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt6Core.so.6
#28 0x00007fe6fb0b55cf in QThread::exec() () at /lib64/libQt6Core.so.6
#29 0x00007fe6fb15015e in QThreadPrivate::start(void*) () at /lib64/libQt6Core.so.6
#30 0x00007fe6fa8ac897 in start_thread () at /lib64/libc.so.6
#31 0x00007fe6fa93380c in clone3 () at /lib64/libc.so.6

Reported using DrKonqi