Bug 421650

Application: systemsettings5 (5.18.5)

Qt Version: 5.13.2
Frameworks Version: 5.68.0
Operating System: Linux 5.6.12-300.fc32.x86_64 x86_64
Windowing system: X11
Distribution: Fedora 32 (Workstation Edition)

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

I was changing file associations (audio) in system settings, before that I installed Amarok Player.

The crash can be reproduced every time.

-- Backtrace:
Application: Ustawienia systemowe (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8888e12800 (LWP 38519))]

Thread 9 (Thread 0x7f88574de700 (LWP 38528)):
#0  0x00007f888cef9b6f in poll () from /lib64/libc.so.6
#1  0x00007f888b262aee in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#2  0x00007f888b262c23 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f888d452c23 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f888d40621b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f888d27a577 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f888c593d89 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f888d27b846 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f887158a700 (LWP 38527)):
#0  0x00007f888cef9b6f in poll () from /lib64/libc.so.6
#1  0x00007f888b262aee in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#2  0x00007f888b262c23 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f888d452c23 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f888d40621b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f888d27a577 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f888c593d89 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#7  0x00007f888d27b846 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f8871ff7700 (LWP 38525)):
#0  0x00007f888bbe4e92 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f88786e4d7b in util_queue_thread_func () from /usr/lib64/dri/i965_dri.so
#2  0x00007f88786e484b in impl_thrd_routine () from /usr/lib64/dri/i965_dri.so
#3  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f88727f8700 (LWP 38524)):
#0  0x00007f888bbe4e92 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f88786e4d7b in util_queue_thread_func () from /usr/lib64/dri/i965_dri.so
#2  0x00007f88786e484b in impl_thrd_routine () from /usr/lib64/dri/i965_dri.so
#3  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f8872ff9700 (LWP 38523)):
#0  0x00007f888bbe4e92 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f88786e4d7b in util_queue_thread_func () from /usr/lib64/dri/i965_dri.so
#2  0x00007f88786e484b in impl_thrd_routine () from /usr/lib64/dri/i965_dri.so
#3  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f88737fa700 (LWP 38522)):
#0  0x00007f888bbe4e92 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f88786e4d7b in util_queue_thread_func () from /usr/lib64/dri/i965_dri.so
#2  0x00007f88786e484b in impl_thrd_routine () from /usr/lib64/dri/i965_dri.so
#3  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f887abce700 (LWP 38521)):
#0  0x00007f888cef9b6f in poll () from /lib64/libc.so.6
#1  0x00007f888b262aee in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#2  0x00007f888b262c23 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f888d452c23 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007f888d40621b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007f888d27a577 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007f888d6c94da in QDBusConnectionManager::run() () from /lib64/libQt5DBus.so.5
#7  0x00007f888d27b846 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f887bb07700 (LWP 38520)):
#0  0x00007f888cef9b6f in poll () from /lib64/libc.so.6
#1  0x00007f888bb9b38a in _xcb_conn_wait () from /lib64/libxcb.so.1
#2  0x00007f888bb9d71a in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007f887bd0ad58 in QXcbEventQueue::run() () from /lib64/libQt5XcbQpa.so.5
#4  0x00007f888d27b846 in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#5  0x00007f888bbde432 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f888cf049d3 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f8888e12800 (LWP 38519)):
[KCrash Handler]
#6  0x00007f888d9b2b74 in QColor::operator=(QColor const&) () from /lib64/libQt5Gui.so.5
#7  0x00007f887ac35068 in QtPrivate::QFunctorSlotObject<Adwaita::Style::polish(QWidget*)::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) () from /usr/lib64/qt5/plugins/styles/adwaita.so
#8  0x00007f888d42da60 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#9  0x00007f888d8436a0 in QGuiApplicationPrivate::processActivatedEvent(QWindowSystemInterfacePrivate::ActivatedWindowEvent*) () from /lib64/libQt5Gui.so.5
#10 0x00007f888d82a5bb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5
#11 0x00007f887bd0bd8e in xcbSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5XcbQpa.so.5
#12 0x00007f888b2627cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#13 0x00007f888b262b58 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#14 0x00007f888b262c23 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#15 0x00007f888d452c06 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#16 0x00007f888d40621b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#17 0x00007f888df9512f in QDialog::exec() () from /lib64/libQt5Widgets.so.5
#18 0x00007f888cd4dbe2 in KBuildSycocaProgressDialog::rebuildKSycoca(QWidget*) () from /lib64/libKF5KIOWidgets.so.5
#19 0x00007f8855d5d056 in FileTypesView::save() () from /usr/lib64/qt5/plugins/kcm_filetypes.so
#20 0x00007f888e8a10e7 in KCModuleProxy::save() () from /lib64/libKF5KCMUtils.so.5
#21 0x00007f888e8d6f25 in ModuleView::moduleSave(KCModuleProxy*) () from /lib64/libsystemsettingsview.so.3
#22 0x00007f888e8d23d6 in ModuleView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libsystemsettingsview.so.3
#23 0x00007f888d42dc21 in QMetaObject::activate(QObject*, int, int, void**) () from /lib64/libQt5Core.so.5
#24 0x00007f888de87a46 in QAbstractButton::clicked(bool) () from /lib64/libQt5Widgets.so.5
#25 0x00007f888de8840e in QAbstractButtonPrivate::emitClicked() () from /lib64/libQt5Widgets.so.5
#26 0x00007f888de89cc3 in QAbstractButtonPrivate::click() () from /lib64/libQt5Widgets.so.5
#27 0x00007f888de89ea5 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /lib64/libQt5Widgets.so.5
#28 0x00007f888dddb208 in QWidget::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#29 0x00007f888dd98e76 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#30 0x00007f888dda0671 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#31 0x00007f888d4078a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#32 0x00007f888dd9f56a in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () from /lib64/libQt5Widgets.so.5
#33 0x00007f888ddf4732 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () from /lib64/libQt5Widgets.so.5
#34 0x00007f888ddf769e in QWidgetWindow::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#35 0x00007f888dd98e76 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#36 0x00007f888d4078a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#37 0x00007f888d846a6b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib64/libQt5Gui.so.5
#38 0x00007f888d82a5bb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Gui.so.5
#39 0x00007f887bd0bd8e in xcbSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5XcbQpa.so.5
#40 0x00007f888b2627cf in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#41 0x00007f888b262b58 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#42 0x00007f888b262c23 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#43 0x00007f888d452c06 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#44 0x00007f888d40621b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#45 0x00007f888d40ddf6 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#46 0x000055993d015884 in main ()
[Inferior 1 (process 38519) detached]

Possible duplicates by query: bug 411881, bug 411006, bug 405261, bug 404967, bug 196829.

Reported using DrKonqi