Bug 420407

Application: systemsettings5 (5.18.4)

Qt Version: 5.14.1
Frameworks Version: 5.69.0
Operating System: Linux 5.3.0-46-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

-- Information about the crash:
- What I was doing when the application crashed:
Clicked on the settings button of transparency in the desktop effects section. Crashes Systemsettings every time.
- Custom settings of the application:

The crash can be reproduced every time.

-- Backtrace:
Application: Systemeinstellungen (systemsettings5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f482b557800 (LWP 15794))]

Thread 6 (Thread 0x7f47f2b14700 (LWP 15812)):
#0  0x00007f48269a80b4 in __GI___libc_read (fd=31, buf=0x7f47f2b13b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f48200692b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f48200240b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4820024570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f48273130db in QEventDispatcherGlib::processEvents (this=0x7f47e00a8b30, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7f47f2b13d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f48270c3317 in QThread::exec (this=this@entry=0x55c5ab2f55f0) at thread/qthread.cpp:536
#8  0x00007f4824c09605 in QQmlThreadPrivate::run (this=0x55c5ab2f55f0) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f48270c47ec in QThreadPrivate::start (arg=0x55c5ab2f55f0) at thread/qthread_unix.cpp:342
#10 0x00007f48223e46db in start_thread (arg=0x7f47f2b14700) at pthread_create.c:463
#11 0x00007f48269b988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f47fa4ad700 (LWP 15799)):
#0  0x00007f482006a629 in g_mutex_lock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4820023470 in g_main_context_acquire () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4820024485 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f48273130db in QEventDispatcherGlib::processEvents (this=0x7f47f4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7f47fa4acd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f48270c3317 in QThread::exec (this=this@entry=0x55c5a5e96d30) at thread/qthread.cpp:536
#7  0x00007f4824c09605 in QQmlThreadPrivate::run (this=0x55c5a5e96d30) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f48270c47ec in QThreadPrivate::start (arg=0x55c5a5e96d30) at thread/qthread_unix.cpp:342
#9  0x00007f48223e46db in start_thread (arg=0x7f47fa4ad700) at pthread_create.c:463
#10 0x00007f48269b988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f4803378700 (LWP 15798)):
#0  0x00007f48269acbf9 in __GI___poll (fds=0x7f47fc0029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f48200245c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f48273130db in QEventDispatcherGlib::processEvents (this=0x7f47fc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7f4803377d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f48270c3317 in QThread::exec (this=this@entry=0x55c5a5ac7790) at thread/qthread.cpp:536
#6  0x00007f4824c09605 in QQmlThreadPrivate::run (this=0x55c5a5ac7790) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f48270c47ec in QThreadPrivate::start (arg=0x55c5a5ac7790) at thread/qthread_unix.cpp:342
#8  0x00007f48223e46db in start_thread (arg=0x7f4803378700) at pthread_create.c:463
#9  0x00007f48269b988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f480bc10700 (LWP 15797)):
#0  0x00007f48269a80b4 in __GI___libc_read (fd=7, buf=0x7f480bc0fb60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f48200692b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f48200240b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4820024570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f48273130db in QEventDispatcherGlib::processEvents (this=0x7f4804000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7f480bc0fd70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f48270c3317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007f482779f555 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f48270c47ec in QThreadPrivate::start (arg=0x7f4827a17da0) at thread/qthread_unix.cpp:342
#10 0x00007f48223e46db in start_thread (arg=0x7f480bc10700) at pthread_create.c:463
#11 0x00007f48269b988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4818153700 (LWP 15796)):
#0  0x00007f48269acbf9 in __GI___poll (fds=0x7f4818152ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4821fa8747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4821faa36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f481ad28cc0 in QXcbEventQueue::run (this=0x55c5a5545e50) at qxcbeventqueue.cpp:228
#4  0x00007f48270c47ec in QThreadPrivate::start (arg=0x55c5a5545e50) at thread/qthread_unix.cpp:342
#5  0x00007f48223e46db in start_thread (arg=0x7f4818153700) at pthread_create.c:463
#6  0x00007f48269b988f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f482b557800 (LWP 15794)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f48268d8801 in __GI_abort () at abort.c:79
#8  0x00007f48270a059b in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1894
#9  QMessageLogger::fatal (this=this@entry=0x7ffe876324c0, msg=msg@entry=0x7f4824c84f28 "Object %p destroyed while one of its QML signal handlers is in progress.\nMost likely the object was deleted synchronously (use QObject::deleteLater() instead), or the application is running a nested e"...) at global/qlogging.cpp:893
#10 0x00007f4824b56b57 in QQmlData::destroyed (this=<optimized out>, object=0x55c5ab3ce0e0) at qml/qqmlengine.cpp:1930
#11 0x00007f48272ec8b3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1026
#12 0x00007f48251a41ad in QQuickItem::~QQuickItem (this=0x55c5ab3ce0e0, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#13 0x00007f47fbbab74d in QQuickButton::~QQuickButton (this=0x55c5ab3ce0e0, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.14.1/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquickbutton_p.h:57
#14 QQuickToolButton::~QQuickToolButton (this=0x55c5ab3ce0e0, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.14.1/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquicktoolbutton_p.h:55
#15 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement (this=0x55c5ab3ce0e0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:111
#16 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement (this=0x55c5ab3ce0e0, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:111
#17 0x00007f48272e6eb5 in QObject::event (this=this@entry=0x55c5ab3ce0e0, e=e@entry=0x55c5ad129e00) at kernel/qobject.cpp:1326
#18 0x00007f48251a145b in QQuickItem::event (this=0x55c5ab3ce0e0, ev=0x55c5ad129e00) at items/qquickitem.cpp:8156
#19 0x00007f482842d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x55c5a553b660, receiver=receiver@entry=0x55c5ab3ce0e0, e=e@entry=0x55c5ad129e00) at kernel/qapplication.cpp:3684
#20 0x00007f4828434ac0 in QApplication::notify (this=0x7ffe87639250, receiver=0x55c5ab3ce0e0, e=0x55c5ad129e00) at kernel/qapplication.cpp:3430
#21 0x00007f48272b3db8 in QCoreApplication::notifyInternal2 (receiver=0x55c5ab3ce0e0, event=0x55c5ad129e00) at kernel/qcoreapplication.cpp:1092
#22 0x00007f48272b3f8e in QCoreApplication::sendEvent (receiver=receiver@entry=0x55c5ab3ce0e0, event=event@entry=0x55c5ad129e00) at kernel/qcoreapplication.cpp:1487
#23 0x00007f48272b6a31 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55c5a5531f60) at kernel/qcoreapplication.cpp:1832
#24 0x00007f48272b6fc8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1691
#25 0x00007f4827313a13 in postEventSourceDispatch (s=0x55c5a55a8090) at kernel/qeventdispatcher_glib.cpp:277
#26 0x00007f4820024417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f4820024650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f48273130bc in QEventDispatcherGlib::processEvents (this=0x55c5a55a6ed0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#30 0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7ffe87632c20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#31 0x00007f4828626357 in QDialog::exec (this=0x7f48100202e0) at dialogs/qdialog.cpp:601
#32 0x00007f47f1e93f62 in KWin::EffectsModel::requestConfigure (this=0x55c5ab2f8290, index=..., transientParent=0x0) at ./kcmkwin/common/effectsmodel.cpp:671
#33 0x00007f47f37b451e in KWin::DesktopEffectsKCM::configure (this=0x55c5ab3857c0, pluginId=..., context=0x0) at ./kcmkwin/kwineffects/kcm.cpp:113
#34 0x00007f47f37b6830 in KWin::DesktopEffectsKCM::qt_static_metacall (_o=_o@entry=0x55c5ab3857c0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0x7ffe87633010) at ./obj-x86_64-linux-gnu/kcmkwin/kwineffects/kcm_kwin_effects_autogen/EWIEGA46WW/moc_kcm.cpp:102
#35 0x00007f47f37b6c65 in KWin::DesktopEffectsKCM::qt_metacall (this=0x55c5ab3857c0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7ffe87633010) at ./obj-x86_64-linux-gnu/kcmkwin/kwineffects/kcm_kwin_effects_autogen/EWIEGA46WW/moc_kcm.cpp:177
#36 0x00007f4824ba6e49 in QQmlObjectOrGadget::metacall (this=0x7ffe87633350, type=QMetaObject::InvokeMetaMethod, index=<optimized out>, argv=<optimized out>) at qml/qqmlobjectorgadget.cpp:51
#37 0x00007f4824a94835 in CallMethod (object=..., index=<optimized out>, returnType=<optimized out>, argCount=<optimized out>, argTypes=<optimized out>, engine=<optimized out>, callArgs=<optimized out>, callType=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1300
#38 0x00007f4824a9623e in CallPrecise (object=..., data=..., engine=engine@entry=0x55c5a83934d0, callArgs=callArgs@entry=0x7f47e76026a0, callType=callType@entry=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1565
#39 0x00007f4824a96ef1 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7f47e7602648, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:2127
#40 0x00007f4824ab30e3 in QV4::FunctionObject::call (argc=<optimized out>, argv=<optimized out>, thisObject=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.14.1/QtQml/private/../../../../../src/qml/jsruntime/qv4functionobject_p.h:202
#41 QV4::Moth::VME::interpret (frame=0x7ffe87633640, engine=0x55c5a83934d0, code=0x7f47f3e9e59e "\016\002@") at jsruntime/qv4vme_moth.cpp:754
#42 0x00007f4824ab6456 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe87633640, engine=engine@entry=0x55c5a83934d0) at jsruntime/qv4vme_moth.cpp:463
#43 0x00007f4824a4910a in QV4::Function::call (this=this@entry=0x55c5a691e800, thisObject=thisObject@entry=0x7f47e76025e8, argv=argv@entry=0x7f47e7602600, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#44 0x00007f4824bc6457 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55c5ad4150d0, callData=callData@entry=0x7f47e76025d0, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:211
#45 0x00007f4824b70929 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55c5ad4150d0, a=a@entry=0x7ffe876353a0) at qml/qqmlboundsignal.cpp:223
#46 0x00007f4824b71b7b in QQmlBoundSignal_callback (e=0x55c5aab41a00, a=0x7ffe876353a0) at qml/qqmlboundsignal.cpp:356
#47 0x00007f4824ba68e2 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7ffe876353a0) at qml/qqmlnotifier.cpp:104
#48 0x00007f4824b54d69 in QQmlData::signalEmitted (object=0x55c5aaad2640, index=<optimized out>, a=0x7ffe876353a0) at qml/qqmlengine.cpp:858
#49 0x00007f48272eec24 in doActivate<false> (sender=0x55c5aaad2640, signal_index=11, argv=0x7ffe876353a0) at kernel/qobject.cpp:3762
#50 0x00007f48272e98a2 in QMetaObject::activate (sender=sender@entry=0x55c5aaad2640, m=m@entry=0x7f4816668100 <QQuickAction::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7ffe876353a0) at kernel/qobject.cpp:3930
#51 0x00007f481638ad82 in QQuickAction::triggered (this=this@entry=0x55c5aaad2640, _t1=<optimized out>, _t1@entry=0x0) at .moc/moc_qquickaction_p.cpp:363
#52 0x00007f481638ba91 in QQuickActionPrivate::trigger (this=0x55c5aaad26f0, source=0x0, doToggle=<optimized out>) at qquickaction.cpp:552
#53 0x00007f481638bb4e in QQuickAction::trigger (this=<optimized out>, source=<optimized out>) at qquickaction.cpp:533
#54 0x00007f481638bd17 in QQuickAction::qt_static_metacall (_o=_o@entry=0x55c5aaad2640, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=13, _a=_a@entry=0x7ffe876357b0) at .moc/moc_qquickaction_p.cpp:153
#55 0x00007f481638c3e5 in QQuickAction::qt_metacall (this=0x55c5aaad2640, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0x7ffe876357b0) at .moc/moc_qquickaction_p.cpp:283
#56 0x00007f4824b50012 in QQmlVMEMetaObject::metaCall (this=0x55c5aaad27e0, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=18, a=0x7ffe876357b0) at qml/qqmlvmemetaobject.cpp:945
#57 0x00007f4824b50209 in QQmlVMEMetaObject::metaCall (this=0x55c5aaad2890, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=18, a=0x7ffe876357b0) at qml/qqmlvmemetaobject.cpp:943
#58 0x00007f4824ba6e49 in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffe87635aa0, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=18, argv=argv@entry=0x7ffe876357b0) at qml/qqmlobjectorgadget.cpp:51
#59 0x00007f4824a9423b in CallMethod (object=..., index=18, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x55c5a83934d0, callArgs=0x7f47e7602588, callType=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1318
#60 0x00007f4824a96202 in CallPrecise (object=..., data=..., engine=0x55c5a83934d0, callArgs=0x7f47e7602588, callType=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1569
#61 0x00007f4824a972e4 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1641
#62 0x00007f4824ab30e3 in QV4::FunctionObject::call (argc=<optimized out>, argv=<optimized out>, thisObject=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.14.1/QtQml/private/../../../../../src/qml/jsruntime/qv4functionobject_p.h:202
#63 QV4::Moth::VME::interpret (frame=0x7ffe87635d90, engine=0x55c5a83934d0, code=0x7f47f3e93ec8 "/\031\001") at jsruntime/qv4vme_moth.cpp:754
#64 0x00007f4824ab6456 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe87635d90, engine=engine@entry=0x55c5a83934d0) at jsruntime/qv4vme_moth.cpp:463
#65 0x00007f4824a4910a in QV4::Function::call (this=this@entry=0x55c5a83bcf70, thisObject=thisObject@entry=0x7f47e76024e8, argv=argv@entry=0x7f47e7602500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#66 0x00007f4824bc6457 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55c5aab6b580, callData=callData@entry=0x7f47e76024d0, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:211
#67 0x00007f4824b70929 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55c5aab6b580, a=a@entry=0x0) at qml/qqmlboundsignal.cpp:223
#68 0x00007f4824b71b7b in QQmlBoundSignal_callback (e=0x55c5ab58d920, a=0x0) at qml/qqmlboundsignal.cpp:356
#69 0x00007f4824ba68e2 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#70 0x00007f4824b54d69 in QQmlData::signalEmitted (object=0x55c5ab3ce0e0, index=<optimized out>, a=0x0) at qml/qqmlengine.cpp:858
#71 0x00007f48272eec24 in doActivate<false> (sender=0x55c5ab3ce0e0, signal_index=64, argv=0x0) at kernel/qobject.cpp:3762
#72 0x00007f48272e98a2 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f4816670360 <QQuickAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3930
#73 0x00007f481640a5e3 in QQuickAbstractButton::clicked (this=<optimized out>) at .moc/moc_qquickabstractbutton_p.cpp:630
#74 0x00007f4816387cd6 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x55c5ab3ce1a0) at qquickabstractbutton.cpp:337
#75 0x00007f4816389b88 in QQuickAbstractButtonPrivate::handleRelease (this=0x55c5ab3ce1a0, point=...) at qquickabstractbutton.cpp:180
#76 0x00007f48163a75f5 in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7ffe87638310) at qquickcontrol.cpp:2119
#77 0x00007f48251a11d8 in QQuickItem::event (this=0x55c5ab3ce0e0, ev=0x7ffe87638310) at items/qquickitem.cpp:8147
#78 0x00007f482842d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x55c5a553b660, receiver=receiver@entry=0x55c5ab3ce0e0, e=e@entry=0x7ffe87638310) at kernel/qapplication.cpp:3684
#79 0x00007f4828434ac0 in QApplication::notify (this=0x7ffe87639250, receiver=0x55c5ab3ce0e0, e=0x7ffe87638310) at kernel/qapplication.cpp:3430
#80 0x00007f48272b3db8 in QCoreApplication::notifyInternal2 (receiver=0x55c5ab3ce0e0, event=0x7ffe87638310) at kernel/qcoreapplication.cpp:1092
#81 0x00007f48272b3f8e in QCoreApplication::sendEvent (receiver=receiver@entry=0x55c5ab3ce0e0, event=event@entry=0x7ffe87638310) at kernel/qcoreapplication.cpp:1487
#82 0x00007f48251bb3cd in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55c5a59bda90, pointerEvent=0x55c5a68e43c0) at items/qquickwindow.cpp:1891
#83 0x00007f48251bc435 in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55c5a59bda90, event=0x55c5a68e43c0) at items/qquickwindow.cpp:2454
#84 0x00007f48251bd1ae in QQuickWindowPrivate::handleMouseEvent (this=0x55c5a59bda90, event=0x7ffe87638310) at items/qquickwindow.cpp:2317
#85 0x00007f4827b4b1d5 in QWindow::event (this=this@entry=0x55c5ac2095f0, ev=ev@entry=0x7ffe87638310) at kernel/qwindow.cpp:2359
#86 0x00007f48251be8f5 in QQuickWindow::event (this=0x55c5ac2095f0, e=0x7ffe87638310) at items/qquickwindow.cpp:1773
#87 0x00007f482842d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x55c5a553b660, receiver=receiver@entry=0x55c5ac2095f0, e=e@entry=0x7ffe87638310) at kernel/qapplication.cpp:3684
#88 0x00007f4828434ac0 in QApplication::notify (this=0x7ffe87639250, receiver=0x55c5ac2095f0, e=0x7ffe87638310) at kernel/qapplication.cpp:3430
#89 0x00007f48272b3db8 in QCoreApplication::notifyInternal2 (receiver=0x55c5ac2095f0, event=0x7ffe87638310) at kernel/qcoreapplication.cpp:1092
#90 0x00007f48272b3f8e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7ffe87638310) at kernel/qcoreapplication.cpp:1487
#91 0x00007f4825ab8cec in QQuickWidget::mouseReleaseEvent (this=<optimized out>, e=0x7ffe87638950) at qquickwidget.cpp:1398
#92 0x00007f482846e7f8 in QWidget::event (this=this@entry=0x55c5a81afa80, event=event@entry=0x7ffe87638950) at kernel/qwidget.cpp:9031
#93 0x00007f4825ab8ecb in QQuickWidget::event (this=0x55c5a81afa80, e=0x7ffe87638950) at qquickwidget.cpp:1551
#94 0x00007f482842d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x55c5a553b660, receiver=receiver@entry=0x55c5a81afa80, e=e@entry=0x7ffe87638950) at kernel/qapplication.cpp:3684
#95 0x00007f4828435908 in QApplication::notify (this=<optimized out>, receiver=0x55c5a81afa80, e=0x7ffe87638950) at kernel/qapplication.cpp:3128
#96 0x00007f48272b3db8 in QCoreApplication::notifyInternal2 (receiver=0x55c5a81afa80, event=0x7ffe87638950) at kernel/qcoreapplication.cpp:1092
#97 0x00007f48272b3f9e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55c5a81afa80, event=event@entry=0x7ffe87638950) at kernel/qcoreapplication.cpp:1499
#98 0x00007f4828433f8f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55c5a81afa80, event=event@entry=0x7ffe87638950, alienWidget=0x55c5a81afa80, nativeWidget=0x55c5a5877fe0, buttonDown=buttonDown@entry=0x7f4828b3d980 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614
#99 0x00007f4828488eb1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55c5a59bbd00, event=event@entry=0x7ffe87638dd0) at kernel/qwidgetwindow.cpp:673
#100 0x00007f482848bd1a in QWidgetWindow::event (this=0x55c5a59bbd00, event=0x7ffe87638dd0) at kernel/qwidgetwindow.cpp:295
#101 0x00007f482842d8bc in QApplicationPrivate::notify_helper (this=this@entry=0x55c5a553b660, receiver=receiver@entry=0x55c5a59bbd00, e=e@entry=0x7ffe87638dd0) at kernel/qapplication.cpp:3684
#102 0x00007f4828434ac0 in QApplication::notify (this=0x7ffe87639250, receiver=0x55c5a59bbd00, e=0x7ffe87638dd0) at kernel/qapplication.cpp:3430
#103 0x00007f48272b3db8 in QCoreApplication::notifyInternal2 (receiver=0x55c5a59bbd00, event=0x7ffe87638dd0) at kernel/qcoreapplication.cpp:1092
#104 0x00007f48272b3f9e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55c5a59bbd00, event=event@entry=0x7ffe87638dd0) at kernel/qcoreapplication.cpp:1499
#105 0x00007f4827b3ff95 in QGuiApplicationPrivate::processMouseEvent (e=0x55c5ab1b93d0) at kernel/qguiapplication.cpp:2209
#106 0x00007f4827b410c5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55c5ab1b93d0) at kernel/qguiapplication.cpp:1941
#107 0x00007f4827b1a01b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1163
#108 0x00007f481ad29c8a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#109 0x00007f4820024417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#110 0x00007f4820024650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#111 0x00007f48200246dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#112 0x00007f48273130bc in QEventDispatcherGlib::processEvents (this=0x55c5a55a6ed0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#113 0x00007f48272b263a in QEventLoop::exec (this=this@entry=0x7ffe87639170, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#114 0x00007f48272bbdb0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1400
#115 0x000055c5a36912e0 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:70

Possible duplicates by query: bug 420176, bug 420063, bug 420006, bug 419700, bug 419607.

Reported using DrKonqi