Bug 429325

Summary: Plasma Crashed in TaskManager::servicesFromPid() as I was installing personal TTF fonts
Product: [Plasma] plasmashell Reporter: Mathias Panzenböck <grosser.meister.morti>
Component: Task Manager and Icons-Only Task Manager widgetsAssignee: Eike Hein <hein>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.18.5   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Mathias Panzenböck 2020-11-18 21:58:37 UTC 
Application: plasmashell (5.18.5)

Qt Version: 5.13.2
Frameworks Version: 5.73.0
Operating System: Linux 5.8.18-100.fc31.x86_64 x86_64
Windowing system: X11
Distribution: "Fedora release 31 (Thirty One)"

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

I was installing TTF fonts as personal fonts using the KDE font viwer (while I was watching Twitch in Firefox at the same time).

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0c810835c0 (LWP 1673))]

Thread 12 (Thread 0x7f0c4304c700 (LWP 3943)):
#0  0x00007f0c84264d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0c84de9943 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#2  0x00007f0c84de99d1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#3  0x00007f0c86a334e9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#4  0x00007f0c86a3378d in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#5  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#6  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f0c4897c700 (LWP 3712)):
#0  0x00007f0c84264d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0c84de9943 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#2  0x00007f0c84de99d1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#3  0x00007f0c86a334e9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#4  0x00007f0c86a3378d in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#5  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#6  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f0c22ffe700 (LWP 2246)):
#0  0x00007f0c84264d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0c84de9943 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#2  0x00007f0c84de99d1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#3  0x00007f0c86a334e9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#4  0x00007f0c86a3378d in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#5  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#6  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f0c42392700 (LWP 2216)):
#0  0x00007f0c84264d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0c84de9943 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#2  0x00007f0c84de99d1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#3  0x00007f0c86a334e9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#4  0x00007f0c86a3378d in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#5  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#6  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f0c49c06700 (LWP 2203)):
#0  0x00007f0c8361eabd in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007f0c835d1df7 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f0c835d279b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f0c835d29a3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f0c84fe88a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f0c84f9223b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f0c84de2cd5 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f0c5c02bd2c in KCupsConnection::run() () at /lib64/libkcupslib.so
#8  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f0c5e02a700 (LWP 2201)):
#0  0x00007f0c84a57f9b in select () at /lib64/libc.so.6
#1  0x00007f0c62d8aef2 in  () at /lib64/libnvidia-glcore.so.455.38
#2  0x00007f0c62d85d4c in  () at /lib64/libnvidia-glcore.so.455.38
#3  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f0c5eb7c700 (LWP 2200)):
#0  0x00007f0c84264d45 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f0c84de9943 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /lib64/libQt5Core.so.5
#2  0x00007f0c84de99d1 in QWaitCondition::wait(QMutex*, unsigned long) () at /lib64/libQt5Core.so.5
#3  0x00007f0c86a334e9 in QSGRenderThread::processEventsAndWaitForMore() () at /lib64/libQt5Quick.so.5
#4  0x00007f0c86a3378d in QSGRenderThread::run() () at /lib64/libQt5Quick.so.5
#5  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#6  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#7  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f0c5fb67700 (LWP 2197)):
#0  0x00007f0c835cf3c9 in g_source_unref_internal () at /lib64/libglib-2.0.so.0
#1  0x00007f0c835d0a05 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#2  0x00007f0c835d21cf in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f0c835d2812 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f0c835d29a3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f0c84fe88a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f0c84f9223b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f0c84de2cd5 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f0c869a80da in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#9  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f0c71e8c700 (LWP 2195)):
#0  0x00007f0c835d09b8 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#1  0x00007f0c835d1d23 in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#2  0x00007f0c835d279b in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007f0c835d29a3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007f0c84fe88a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007f0c84f9223b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f0c84de2cd5 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007f0c866b5399 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f0c73157700 (LWP 1953)):
#0  0x00007f0c835d0943 in g_source_ref () at /lib64/libglib-2.0.so.0
#1  0x00007f0c835d09e8 in g_source_iter_next () at /lib64/libglib-2.0.so.0
#2  0x00007f0c835d21cf in g_main_context_check () at /lib64/libglib-2.0.so.0
#3  0x00007f0c835d2812 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007f0c835d29a3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007f0c84fe88a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007f0c84f9223b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007f0c84de2cd5 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007f0c85f65f6a in QDBusConnectionManager::run() () at /lib64/libQt5DBus.so.5
#9  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f0c73d69700 (LWP 1761)):
#0  0x00007f0c84a55a5f in poll () at /lib64/libc.so.6
#1  0x00007f0c86e4138a in _xcb_conn_wait () at /lib64/libxcb.so.1
#2  0x00007f0c86e42fea in xcb_wait_for_event () at /lib64/libxcb.so.1
#3  0x00007f0c73f32d48 in QXcbEventQueue::run() () at /lib64/libQt5XcbQpa.so.5
#4  0x00007f0c84de3e26 in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#5  0x00007f0c8425e4e2 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f0c84a606c3 in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f0c810835c0 (LWP 1673)):
[KCrash Handler]
#4  0x00007f0c85f2552a in (anonymous namespace)::getProcessInfo(QString const&, KProcessList::KProcessInfo&) () at /lib64/libKF5CoreAddons.so.5
#5  0x00007f0c85f26616 in KProcessList::processInfo(long long) () at /lib64/libKF5CoreAddons.so.5
#6  0x00007f0c70bcf26a in TaskManager::servicesFromPid(unsigned int, QExplicitlySharedDataPointer<KSharedConfig>) () at /lib64/libtaskmanager.so.6
#7  0x00007f0c70bcf939 in TaskManager::windowUrlFromMetadata(QString const&, unsigned int, QExplicitlySharedDataPointer<KSharedConfig>, QString const&) () at /lib64/libtaskmanager.so.6
#8  0x00007f0c70bde877 in TaskManager::XWindowTasksModel::Private::windowUrl(unsigned long long) () at /lib64/libtaskmanager.so.6
#9  0x00007f0c70bdf03a in TaskManager::XWindowTasksModel::Private::appData(unsigned long long) () at /lib64/libtaskmanager.so.6
#10 0x00007f0c70be33a9 in TaskManager::XWindowTasksModel::data(QModelIndex const&, int) const () at /lib64/libtaskmanager.so.6
#11 0x00007f0c84f5ebd9 in QAbstractProxyModel::data(QModelIndex const&, int) const () at /lib64/libQt5Core.so.5
#12 0x00007f0c70bb4774 in TaskManager::TaskFilterProxyModel::acceptsRow(int) const () at /lib64/libtaskmanager.so.6
#13 0x00007f0c84f6d158 in QSortFilterProxyModelPrivate::source_items_inserted(QModelIndex const&, int, int, Qt::Orientation) () at /lib64/libQt5Core.so.5
#14 0x00007f0c84f7044e in QSortFilterProxyModelPrivate::_q_sourceRowsInserted(QModelIndex const&, int, int) () at /lib64/libQt5Core.so.5
#15 0x00007f0c84f710e6 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Core.so.5
#16 0x00007f0c84fbd97b in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#17 0x00007f0c84f41b22 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /lib64/libQt5Core.so.5
#18 0x00007f0c84f49f52 in QAbstractItemModel::endInsertRows() () at /lib64/libQt5Core.so.5
#19 0x00007f0c84f652e0 in QIdentityProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libQt5Core.so.5
#20 0x00007f0c84fbd97b in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#21 0x00007f0c84f41b22 in QAbstractItemModel::rowsInserted(QModelIndex const&, int, int, QAbstractItemModel::QPrivateSignal) () at /lib64/libQt5Core.so.5
#22 0x00007f0c84f49f52 in QAbstractItemModel::endInsertRows() () at /lib64/libQt5Core.so.5
#23 0x00007f0c70be04e9 in TaskManager::XWindowTasksModel::Private::addWindow(unsigned long long) () at /lib64/libtaskmanager.so.6
#24 0x00007f0c84fbdac0 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#25 0x00007f0c70ba2ba3 in XWindowSystemEventBatcher::windowAdded(unsigned long long) () at /lib64/libtaskmanager.so.6
#26 0x00007f0c84fbdac0 in QMetaObject::activate(QObject*, int, int, void**) () at /lib64/libQt5Core.so.5
#27 0x00007f0c8609abb6 in KWindowSystem::windowAdded(unsigned long long) () at /lib64/libKF5WindowSystem.so.5
#28 0x00007f0c71f30de5 in NETEventFilter::addClient(unsigned int) () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#29 0x00007f0c860c324a in NETRootInfo::update(QFlags<NET::Property>, QFlags<NET::Property2>) () at /lib64/libKF5WindowSystem.so.5
#30 0x00007f0c860c3e2b in NETRootInfo::event(xcb_generic_event_t*, QFlags<NET::Property>*, QFlags<NET::Property2>*) () at /lib64/libKF5WindowSystem.so.5
#31 0x00007f0c71f30645 in NETEventFilter::nativeEventFilter(xcb_generic_event_t*) () at /usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so
#32 0x00007f0c84f90a64 in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () at /lib64/libQt5Core.so.5
#33 0x00007f0c73f0a285 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () at /lib64/libQt5XcbQpa.so.5
#34 0x00007f0c73f0afe6 in QXcbConnection::processXcbEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5XcbQpa.so.5
#35 0x00007f0c73f33d57 in xcbSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5XcbQpa.so.5
#36 0x00007f0c835d2570 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#37 0x00007f0c835d2900 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#38 0x00007f0c835d29a3 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#39 0x00007f0c84fe8885 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#40 0x00007f0c84f9223b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#41 0x00007f0c84f9a116 in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#42 0x0000564280bb4b95 in main ()
[Inferior 1 (process 1673) detached]

Possible duplicates by query: bug 429026, bug 428554, bug 428513, bug 428241, bug 427900.

Reported using DrKonqi
Comment 1 Nate Graham 2021-02-26 17:50:47 UTC 
Can't reproduce the issue when I try to install a TTF font.
Comment 2 Nate Graham 2021-02-27 04:47:38 UTC 

*** This bug has been marked as a duplicate of bug 420566 ***