Bug 419607

Application: systemsettings5 (5.18.4)

Qt Version: 5.14.1
Frameworks Version: 5.68.0
Operating System: Linux 5.3.0-45-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.18

-- Information about the crash:
- Unusual behavior I noticed:

Translucidiy menu doesn't work anymore (effects of the desktop)

The crash can be reproduced every time.

-- Backtrace:
Application: Configuration du système (systemsettings5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1960311800 (LWP 3383))]

Thread 7 (Thread 0x7f1921e43700 (LWP 3398)):
#0  0x00007f195b74f0b4 in __GI___libc_read (fd=18, buf=0x7f1921e42b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f1954e0d2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1954dc80b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1954dc8570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f195c0ba0db in QEventDispatcherGlib::processEvents (this=0x7f191c037c00, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7f1921e42d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f195be6a317 in QThread::exec (this=this@entry=0x55ac16b66d00) at thread/qthread.cpp:536
#8  0x00007f19599ad605 in QQmlThreadPrivate::run (this=0x55ac16b66d00) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f195be6b7ec in QThreadPrivate::start (arg=0x55ac16b66d00) at thread/qthread_unix.cpp:342
#10 0x00007f19571886db in start_thread (arg=0x7f1921e43700) at pthread_create.c:463
#11 0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f192dbef700 (LWP 3390)):
#0  0x00007f195b753bf9 in __GI___poll (fds=0x7f1924002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1954dc85c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f195c0ba0db in QEventDispatcherGlib::processEvents (this=0x7f1924000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7f192dbeed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f195be6a317 in QThread::exec (this=this@entry=0x55ac0ed0d3c0) at thread/qthread.cpp:536
#6  0x00007f19599ad605 in QQmlThreadPrivate::run (this=0x55ac0ed0d3c0) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f195be6b7ec in QThreadPrivate::start (arg=0x55ac0ed0d3c0) at thread/qthread_unix.cpp:342
#8  0x00007f19571886db in start_thread (arg=0x7f192dbef700) at pthread_create.c:463
#9  0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f1936aad700 (LWP 3388)):
#0  0x00007f195b74f0b4 in __GI___libc_read (fd=13, buf=0x7f1936aacb70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f1954e0d2b0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1954dc80b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1954dc8570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f195c0ba0db in QEventDispatcherGlib::processEvents (this=0x7f1928000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7f1936aacd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007f195be6a317 in QThread::exec (this=this@entry=0x55ac0ea775d0) at thread/qthread.cpp:536
#8  0x00007f19599ad605 in QQmlThreadPrivate::run (this=0x55ac0ea775d0) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f195be6b7ec in QThreadPrivate::start (arg=0x55ac0ea775d0) at thread/qthread_unix.cpp:342
#10 0x00007f19571886db in start_thread (arg=0x7f1936aad700) at pthread_create.c:463
#11 0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f1937dbe700 (LWP 3387)):
#0  0x00007f195718e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ac0e4db15c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55ac0e4db108, cond=0x55ac0e4db130) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55ac0e4db130, mutex=0x55ac0e4db108) at pthread_cond_wait.c:655
#3  0x00007f193931aecb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f193931aac7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f19571886db in start_thread (arg=0x7f1937dbe700) at pthread_create.c:463
#6  0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f1940946700 (LWP 3386)):
#0  0x00007f1954e0e644 in g_mutex_unlock () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1954dc7dc9 in g_main_context_query () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1954dc8547 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f195c0ba0db in QEventDispatcherGlib::processEvents (this=0x7f193c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7f1940945d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f195be6a317 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007f195c546555 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f195be6b7ec in QThreadPrivate::start (arg=0x7f195c7beda0) at thread/qthread_unix.cpp:342
#9  0x00007f19571886db in start_thread (arg=0x7f1940946700) at pthread_create.c:463
#10 0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f194d03a700 (LWP 3385)):
#0  0x00007f195b753bf9 in __GI___poll (fds=0x7f194d039ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1956d4c747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1956d4e36a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f194fc0fcc0 in QXcbEventQueue::run (this=0x55ac0e35b1c0) at qxcbeventqueue.cpp:228
#4  0x00007f195be6b7ec in QThreadPrivate::start (arg=0x55ac0e35b1c0) at thread/qthread_unix.cpp:342
#5  0x00007f19571886db in start_thread (arg=0x7f194d03a700) at pthread_create.c:463
#6  0x00007f195b76088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1960311800 (LWP 3383)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#7  0x00007f195b67f801 in __GI_abort () at abort.c:79
#8  0x00007f195be4759b in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1894
#9  QMessageLogger::fatal (this=this@entry=0x7ffecb743590, msg=msg@entry=0x7f1959a28f28 "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 0x00007f19598fab57 in QQmlData::destroyed (this=<optimized out>, object=0x55ac16ac1660) at qml/qqmlengine.cpp:1930
#11 0x00007f195c0938b3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1026
#12 0x00007f1959f481ad in QQuickItem::~QQuickItem (this=0x55ac16ac1660, __in_chrg=<optimized out>) at items/qquickitem.cpp:2383
#13 0x00007f192f2f674d in QQuickButton::~QQuickButton (this=0x55ac16ac1660, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.14.1/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquickbutton_p.h:57
#14 QQuickToolButton::~QQuickToolButton (this=0x55ac16ac1660, __in_chrg=<optimized out>) at ../../../include/QtQuickTemplates2/5.14.1/QtQuickTemplates2/private/../../../../../src/quicktemplates2/qquicktoolbutton_p.h:55
#15 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement (this=0x55ac16ac1660, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:111
#16 QQmlPrivate::QQmlElement<QQuickToolButton>::~QQmlElement (this=0x55ac16ac1660, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtQml/qqmlprivate.h:111
#17 0x00007f195c08deb5 in QObject::event (this=this@entry=0x55ac16ac1660, e=e@entry=0x55ac15c64630) at kernel/qobject.cpp:1326
#18 0x00007f1959f4545b in QQuickItem::event (this=0x55ac16ac1660, ev=0x55ac15c64630) at items/qquickitem.cpp:8156
#19 0x00007f195d1d48bc in QApplicationPrivate::notify_helper (this=this@entry=0x55ac0e357630, receiver=receiver@entry=0x55ac16ac1660, e=e@entry=0x55ac15c64630) at kernel/qapplication.cpp:3684
#20 0x00007f195d1dbac0 in QApplication::notify (this=0x7ffecb74a320, receiver=0x55ac16ac1660, e=0x55ac15c64630) at kernel/qapplication.cpp:3430
#21 0x00007f195c05adb8 in QCoreApplication::notifyInternal2 (receiver=0x55ac16ac1660, event=0x55ac15c64630) at kernel/qcoreapplication.cpp:1092
#22 0x00007f195c05af8e in QCoreApplication::sendEvent (receiver=receiver@entry=0x55ac16ac1660, event=event@entry=0x55ac15c64630) at kernel/qcoreapplication.cpp:1487
#23 0x00007f195c05da31 in QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55ac0e34df60) at kernel/qcoreapplication.cpp:1832
#24 0x00007f195c05dfc8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1691
#25 0x00007f195c0baa13 in postEventSourceDispatch (s=0x55ac0e3ab1b0) at kernel/qeventdispatcher_glib.cpp:277
#26 0x00007f1954dc8417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f1954dc8650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f195c0ba0bc in QEventDispatcherGlib::processEvents (this=0x55ac0e3ada60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#30 0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7ffecb743cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#31 0x00007f195d3cd357 in QDialog::exec (this=0x7f194400af90) at dialogs/qdialog.cpp:601
#32 0x00007f1920faaf62 in KWin::EffectsModel::requestConfigure (this=0x55ac14aece20, index=..., transientParent=0x0) at ./kcmkwin/common/effectsmodel.cpp:671
#33 0x00007f192143051e in KWin::DesktopEffectsKCM::configure (this=0x55ac15ca8860, pluginId=..., context=0x0) at ./kcmkwin/kwineffects/kcm.cpp:113
#34 0x00007f1921432830 in KWin::DesktopEffectsKCM::qt_static_metacall (_o=_o@entry=0x55ac15ca8860, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0x7ffecb7440e0) at ./obj-x86_64-linux-gnu/kcmkwin/kwineffects/kcm_kwin_effects_autogen/EWIEGA46WW/moc_kcm.cpp:102
#35 0x00007f1921432c65 in KWin::DesktopEffectsKCM::qt_metacall (this=0x55ac15ca8860, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7ffecb7440e0) at ./obj-x86_64-linux-gnu/kcmkwin/kwineffects/kcm_kwin_effects_autogen/EWIEGA46WW/moc_kcm.cpp:177
#36 0x00007f195994ae49 in QQmlObjectOrGadget::metacall (this=0x7ffecb744420, type=QMetaObject::InvokeMetaMethod, index=<optimized out>, argv=<optimized out>) at qml/qqmlobjectorgadget.cpp:51
#37 0x00007f1959838835 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 0x00007f195983a23e in CallPrecise (object=..., data=..., engine=engine@entry=0x55ac11bb90c0, callArgs=callArgs@entry=0x7f191a00a6a0, callType=callType@entry=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1565
#39 0x00007f195983aef1 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7f191a00a648, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:2127
#40 0x00007f19598570e3 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=0x7ffecb744710, engine=0x55ac11bb90c0, code=0x7f192052359e "\016\002@") at jsruntime/qv4vme_moth.cpp:754
#42 0x00007f195985a456 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffecb744710, engine=engine@entry=0x55ac11bb90c0) at jsruntime/qv4vme_moth.cpp:463
#43 0x00007f19597ed10a in QV4::Function::call (this=this@entry=0x55ac11a3c860, thisObject=thisObject@entry=0x7f191a00a5e8, argv=argv@entry=0x7f191a00a600, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#44 0x00007f195996a457 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55ac11bb4230, callData=callData@entry=0x7f191a00a5d0, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:211
#45 0x00007f1959914929 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55ac11bb4230, a=a@entry=0x7ffecb746470) at qml/qqmlboundsignal.cpp:223
#46 0x00007f1959915b7b in QQmlBoundSignal_callback (e=0x55ac1663a890, a=0x7ffecb746470) at qml/qqmlboundsignal.cpp:356
#47 0x00007f195994a8e2 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7ffecb746470) at qml/qqmlnotifier.cpp:104
#48 0x00007f19598f8d69 in QQmlData::signalEmitted (object=0x55ac16992ad0, index=<optimized out>, a=0x7ffecb746470) at qml/qqmlengine.cpp:858
#49 0x00007f195c095c24 in doActivate<false> (sender=0x55ac16992ad0, signal_index=11, argv=0x7ffecb746470) at kernel/qobject.cpp:3762
#50 0x00007f195c0908a2 in QMetaObject::activate (sender=sender@entry=0x55ac16992ad0, m=m@entry=0x7f194b551100 <QQuickAction::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7ffecb746470) at kernel/qobject.cpp:3930
#51 0x00007f194b273d82 in QQuickAction::triggered (this=this@entry=0x55ac16992ad0, _t1=<optimized out>, _t1@entry=0x0) at .moc/moc_qquickaction_p.cpp:363
#52 0x00007f194b274a91 in QQuickActionPrivate::trigger (this=0x55ac16823930, source=0x0, doToggle=<optimized out>) at qquickaction.cpp:552
#53 0x00007f194b274b4e in QQuickAction::trigger (this=<optimized out>, source=<optimized out>) at qquickaction.cpp:533
#54 0x00007f194b274d17 in QQuickAction::qt_static_metacall (_o=_o@entry=0x55ac16992ad0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=13, _a=_a@entry=0x7ffecb746880) at .moc/moc_qquickaction_p.cpp:153
#55 0x00007f194b2753e5 in QQuickAction::qt_metacall (this=0x55ac16992ad0, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0x7ffecb746880) at .moc/moc_qquickaction_p.cpp:283
#56 0x00007f19598f4012 in QQmlVMEMetaObject::metaCall (this=0x55ac172291c0, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=18, a=0x7ffecb746880) at qml/qqmlvmemetaobject.cpp:945
#57 0x00007f19598f4209 in QQmlVMEMetaObject::metaCall (this=0x55ac170550c0, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=18, a=0x7ffecb746880) at qml/qqmlvmemetaobject.cpp:943
#58 0x00007f195994ae49 in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffecb746b70, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=18, argv=argv@entry=0x7ffecb746880) at qml/qqmlobjectorgadget.cpp:51
#59 0x00007f195983823b in CallMethod (object=..., index=18, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x55ac11bb90c0, callArgs=0x7f191a00a588, callType=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1318
#60 0x00007f195983a202 in CallPrecise (object=..., data=..., engine=0x55ac11bb90c0, callArgs=0x7f191a00a588, callType=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1569
#61 0x00007f195983b2e4 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1641
#62 0x00007f19598570e3 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=0x7ffecb746e60, engine=0x55ac11bb90c0, code=0x7f191b7f5e98 "/\031\001") at jsruntime/qv4vme_moth.cpp:754
#64 0x00007f195985a456 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffecb746e60, engine=engine@entry=0x55ac11bb90c0) at jsruntime/qv4vme_moth.cpp:463
#65 0x00007f19597ed10a in QV4::Function::call (this=this@entry=0x55ac16092330, thisObject=thisObject@entry=0x7f191a00a4e8, argv=argv@entry=0x7f191a00a500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#66 0x00007f195996a457 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55ac15dbdff0, callData=callData@entry=0x7f191a00a4d0, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:211
#67 0x00007f1959914929 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55ac15dbdff0, a=a@entry=0x0) at qml/qqmlboundsignal.cpp:223
#68 0x00007f1959915b7b in QQmlBoundSignal_callback (e=0x55ac167a1e70, a=0x0) at qml/qqmlboundsignal.cpp:356
#69 0x00007f195994a8e2 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#70 0x00007f19598f8d69 in QQmlData::signalEmitted (object=0x55ac16ac1660, index=<optimized out>, a=0x0) at qml/qqmlengine.cpp:858
#71 0x00007f195c095c24 in doActivate<false> (sender=0x55ac16ac1660, signal_index=64, argv=0x0) at kernel/qobject.cpp:3762
#72 0x00007f195c0908a2 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f194b559360 <QQuickAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3930
#73 0x00007f194b2f35e3 in QQuickAbstractButton::clicked (this=<optimized out>) at .moc/moc_qquickabstractbutton_p.cpp:630
#74 0x00007f194b270cd6 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x55ac165219f0) at qquickabstractbutton.cpp:337
#75 0x00007f194b272b88 in QQuickAbstractButtonPrivate::handleRelease (this=0x55ac165219f0, point=...) at qquickabstractbutton.cpp:180
#76 0x00007f194b2905f5 in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7ffecb7493e0) at qquickcontrol.cpp:2119
#77 0x00007f1959f451d8 in QQuickItem::event (this=0x55ac16ac1660, ev=0x7ffecb7493e0) at items/qquickitem.cpp:8147
#78 0x00007f195d1d48bc in QApplicationPrivate::notify_helper (this=this@entry=0x55ac0e357630, receiver=receiver@entry=0x55ac16ac1660, e=e@entry=0x7ffecb7493e0) at kernel/qapplication.cpp:3684
#79 0x00007f195d1dbac0 in QApplication::notify (this=0x7ffecb74a320, receiver=0x55ac16ac1660, e=0x7ffecb7493e0) at kernel/qapplication.cpp:3430
#80 0x00007f195c05adb8 in QCoreApplication::notifyInternal2 (receiver=0x55ac16ac1660, event=0x7ffecb7493e0) at kernel/qcoreapplication.cpp:1092
#81 0x00007f195c05af8e in QCoreApplication::sendEvent (receiver=receiver@entry=0x55ac16ac1660, event=event@entry=0x7ffecb7493e0) at kernel/qcoreapplication.cpp:1487
#82 0x00007f1959f5f3cd in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55ac11c647a0, pointerEvent=0x7f1944006bc0) at items/qquickwindow.cpp:1891
#83 0x00007f1959f60435 in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55ac11c647a0, event=0x7f1944006bc0) at items/qquickwindow.cpp:2454
#84 0x00007f1959f611ae in QQuickWindowPrivate::handleMouseEvent (this=0x55ac11c647a0, event=0x7ffecb7493e0) at items/qquickwindow.cpp:2317
#85 0x00007f195c8f21d5 in QWindow::event (this=this@entry=0x55ac11b8c6c0, ev=ev@entry=0x7ffecb7493e0) at kernel/qwindow.cpp:2359
#86 0x00007f1959f628f5 in QQuickWindow::event (this=0x55ac11b8c6c0, e=0x7ffecb7493e0) at items/qquickwindow.cpp:1773
#87 0x00007f195d1d48bc in QApplicationPrivate::notify_helper (this=this@entry=0x55ac0e357630, receiver=receiver@entry=0x55ac11b8c6c0, e=e@entry=0x7ffecb7493e0) at kernel/qapplication.cpp:3684
#88 0x00007f195d1dbac0 in QApplication::notify (this=0x7ffecb74a320, receiver=0x55ac11b8c6c0, e=0x7ffecb7493e0) at kernel/qapplication.cpp:3430
#89 0x00007f195c05adb8 in QCoreApplication::notifyInternal2 (receiver=0x55ac11b8c6c0, event=0x7ffecb7493e0) at kernel/qcoreapplication.cpp:1092
#90 0x00007f195c05af8e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7ffecb7493e0) at kernel/qcoreapplication.cpp:1487
#91 0x00007f195a85ccec in QQuickWidget::mouseReleaseEvent (this=<optimized out>, e=0x7ffecb749a20) at qquickwidget.cpp:1398
#92 0x00007f195d2157f8 in QWidget::event (this=this@entry=0x55ac11a04e70, event=event@entry=0x7ffecb749a20) at kernel/qwidget.cpp:9031
#93 0x00007f195a85cecb in QQuickWidget::event (this=0x55ac11a04e70, e=0x7ffecb749a20) at qquickwidget.cpp:1551
#94 0x00007f195d1d48bc in QApplicationPrivate::notify_helper (this=this@entry=0x55ac0e357630, receiver=receiver@entry=0x55ac11a04e70, e=e@entry=0x7ffecb749a20) at kernel/qapplication.cpp:3684
#95 0x00007f195d1dc908 in QApplication::notify (this=<optimized out>, receiver=0x55ac11a04e70, e=0x7ffecb749a20) at kernel/qapplication.cpp:3128
#96 0x00007f195c05adb8 in QCoreApplication::notifyInternal2 (receiver=0x55ac11a04e70, event=0x7ffecb749a20) at kernel/qcoreapplication.cpp:1092
#97 0x00007f195c05af9e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55ac11a04e70, event=event@entry=0x7ffecb749a20) at kernel/qcoreapplication.cpp:1499
#98 0x00007f195d1daf8f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55ac11a04e70, event=event@entry=0x7ffecb749a20, alienWidget=0x55ac11a04e70, nativeWidget=0x55ac0e617a00, buttonDown=buttonDown@entry=0x7f195d8e4980 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614
#99 0x00007f195d22feb1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55ac0e72b420, event=event@entry=0x7ffecb749ea0) at kernel/qwidgetwindow.cpp:673
#100 0x00007f195d232d1a in QWidgetWindow::event (this=0x55ac0e72b420, event=0x7ffecb749ea0) at kernel/qwidgetwindow.cpp:295
#101 0x00007f195d1d48bc in QApplicationPrivate::notify_helper (this=this@entry=0x55ac0e357630, receiver=receiver@entry=0x55ac0e72b420, e=e@entry=0x7ffecb749ea0) at kernel/qapplication.cpp:3684
#102 0x00007f195d1dbac0 in QApplication::notify (this=0x7ffecb74a320, receiver=0x55ac0e72b420, e=0x7ffecb749ea0) at kernel/qapplication.cpp:3430
#103 0x00007f195c05adb8 in QCoreApplication::notifyInternal2 (receiver=0x55ac0e72b420, event=0x7ffecb749ea0) at kernel/qcoreapplication.cpp:1092
#104 0x00007f195c05af9e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55ac0e72b420, event=event@entry=0x7ffecb749ea0) at kernel/qcoreapplication.cpp:1499
#105 0x00007f195c8e6f95 in QGuiApplicationPrivate::processMouseEvent (e=0x55ac16c07410) at kernel/qguiapplication.cpp:2209
#106 0x00007f195c8e80c5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55ac16c07410) at kernel/qguiapplication.cpp:1941
#107 0x00007f195c8c101b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1163
#108 0x00007f194fc10c8a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#109 0x00007f1954dc8417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#110 0x00007f1954dc8650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#111 0x00007f1954dc86dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#112 0x00007f195c0ba0bc in QEventDispatcherGlib::processEvents (this=0x55ac0e3ada60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#113 0x00007f195c05963a in QEventLoop::exec (this=this@entry=0x7ffecb74a240, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#114 0x00007f195c062db0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1400
#115 0x000055ac0c1e32e0 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:70

Possible duplicates by query: bug 418804, bug 418803, bug 418797, bug 418730, bug 418360.

Reported using DrKonqi