Modal popup causes crash when used in StackView

Thread 1 (Thread 0x7ffff7fc0740 (LWP 2185)):
#0 QObjectPrivate::addConnection (this=0x0, signal=signal@entry=0, c=c@entry=0xfc6130) at kernel/qobject.cpp:385
connectionList = <optimized out>
#1 0x00007ffff7152944 in QObjectPrivate::connectImpl (sender=sender@entry=0xe68d20, signal_index=<optimized out>, receiver=receiver@entry=0x7ffff78a1500 <(anonymous namespace)::Q_QGS_objectReferenceHash::innerFunction()::holder>, slot=slot@entry=0x7fffffffd6d0, slotObj=slotObj@entry=0xe6eaf0, type=Qt::AutoConnection, types=0x0, senderMetaObject=0x7ffff73f2640 <QObject::staticMetaObject>) at kernel/qobject.cpp:4841
__PRETTY_FUNCTION__ = "static QMetaObject::Connection QObjectPrivate::connectImpl(const QObject*, int, const QObject*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, const int*, const QMetaObject*)"
s = 0xe68d20
r = 0x7ffff78a1500 <(anonymous namespace)::Q_QGS_objectReferenceHash::innerFunction()::holder>
locker = {mtx1 = 0x7ffff74013a8 <_q_ObjectMutexPool+392>, mtx2 = 0x7ffff7401610 <_q_ObjectMutexPool+1008>, locked = true}
c = {d = 0xfc6130}
ret = {d_ptr = 0x6c1780}
method = {mobj = 0x6b6480, handle = 4144182696}
#2 0x00007ffff7152c21 in QObject::connectImpl (sender=sender@entry=0xe68d20, signal=signal@entry=0x7fffffffd6c0, receiver=receiver@entry=0x7ffff78a1500 <(anonymous namespace)::Q_QGS_objectReferenceHash::innerFunction()::holder>, slot=slot@entry=0x7fffffffd6d0, slotObj=0xe6eaf0, type=Qt::AutoConnection, types=0x0, senderMetaObject=0x7ffff73f2640 <QObject::staticMetaObject>) at kernel/qobject.cpp:4784
__PRETTY_FUNCTION__ = "static QMetaObject::Connection QObject::connectImpl(const QObject*, void**, const QObject*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, const int*, const QMetaObject*)"
signal_index = 0
args = {0x7fffffffd5ec, 0x7fffffffd6c0}
#3 0x00007ffff7769b93 in QObject::connect<void (QObject::*)(QObject*), void ((anonymous namespace)::ObjectReferenceHash::*)(QObject*)> (type=Qt::AutoConnection, slot=(void ((anonymous namespace)::ObjectReferenceHash::*)((anonymous namespace)::ObjectReferenceHash * const, QObject *)) 0x7ffff77697f2 <(anonymous namespace)::ObjectReferenceHash::remove(QObject*)>, receiver=0x7ffff78a1500 <(anonymous namespace)::Q_QGS_objectReferenceHash::innerFunction()::holder>, signal=(void (QObject::*)(QObject * const, QObject *)) 0x7ffff71507b2 <QObject::destroyed(QObject*)>, sender=0xe68d20) at /home/marcusbackman/Qt_/qt5/qtbase/include/QtCore/../../src/corelib/kernel/qobject.h:259
types = 0x0
#4 QQmlDebugService::idForObject (object=object@entry=0xe68d20) at debugger/qqmldebugservice.cpp:165
id = 73
iter = <optimized out>
#5 0x00007fffe9e0f1a0 in QQmlEngineDebugServiceImpl::storeObjectIds (this=this@entry=0x6b6480, co=0xe68d20) at qqmlenginedebugservice.cpp:330
children = {<QListSpecialMethods<QObject*>> = {<No data fields>}, {p = {static shared_null = Reading in symbols for tools/qlist.cpp...done.
{ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d = 0x829fd0}, d = 0x829fd0}}
#6 0x00007fffe9e0f298 in QQmlEngineDebugServiceImpl::buildObjectList (this=this@entry=0x6b6480, message=..., ctxt=0x829fd0, instances=...) at qqmlenginedebugservice.cpp:345
ctxtName = {static null = Reading in symbols for tools/qstring.cpp...done.
{<No data fields>}, d = 0x7ffff721dba0 <QArrayData::shared_null>}
ctxtId = 49
count = <optimized out>
child = <optimized out>
#7 0x00007fffe9e0f2f1 in QQmlEngineDebugServiceImpl::buildObjectList (this=this@entry=0x6b6480, message=..., ctxt=<optimized out>, instances=...) at qqmlenginedebugservice.cpp:361
ctxtName = {static null = {<No data fields>}, d = 0x7ffff721dba0 <QArrayData::shared_null>}
ctxtId = 32
count = <optimized out>
child = 0x77ae80
#8 0x00007fffe9e0f2f1 in QQmlEngineDebugServiceImpl::buildObjectList (this=this@entry=0x6b6480, message=..., ctxt=<optimized out>, instances=...) at qqmlenginedebugservice.cpp:361
ctxtName = {static null = {<No data fields>}, d = 0x7ffff721dba0 <QArrayData::shared_null>}
ctxtId = 6
count = <optimized out>
child = 0x6c1780
#9 0x00007fffe9e0f2f1 in QQmlEngineDebugServiceImpl::buildObjectList (this=this@entry=0x6b6480, message=..., ctxt=ctxt@entry=0x6b1060, instances=...) at qqmlenginedebugservice.cpp:361
ctxtName = {static null = {<No data fields>}, d = 0x7ffff721dba0 <QArrayData::shared_null>}
ctxtId = 5
count = <optimized out>
child = 0x6c0c30
#10 0x00007fffe9e13644 in QQmlEngineDebugServiceImpl::processMessage (this=0x6b6480, message=...) at qqmlenginedebugservice.cpp:484
rootContext = 0x6b1060
engineId = 0
ds = {<QPacket> = {<QDataStream> = {d = {d = Reading in symbols for io/qdatastream.cpp...done.
0x0}, dev = 0x7fffffffda60, owndev = false, noswap = false, byteorder = QDataStream::BigEndian, ver = 17, q_status = QDataStream::Ok}, buf = {<QIODevice> = {<QObject> = {_vptr.QObject = 0x7ffff73f70d0 <vtable for QBuffer+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72df1c0 <qt_meta_stringdata_QObject>, data = 0x7ffff72df0a0 <qt_meta_data_QObject>, static_metacall = 0x7ffff7157972 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x77b6b0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72e1e40 <qt_meta_stringdata_Qt>, data = 0x7ffff72df2e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f2640 <QObject::staticMetaObject>, stringdata = 0x7ffff72c7600 <qt_meta_stringdata_QIODevice>, data = 0x7ffff72c7500 <qt_meta_data_QIODevice>, static_metacall = 0x7ffff704f790 <QIODevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f76e0 <QIODevice::staticMetaObject>, stringdata = 0x7ffff72a7ac0 <qt_meta_stringdata_QBuffer>, data = 0x7ffff72a7a60 <qt_meta_data_QBuffer>, static_metacall = 0x7ffff7031ca6 <QBuffer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}}, <No data fields>}
type = {d = 0xf65dd0}
queryId = 10
rs = {<QPacket> = {<QDataStream> = {d = {d = 0x0}, dev = 0x7fffffffda90, owndev = false, noswap = false, byteorder = QDataStream::BigEndian, ver = 17, q_status = QDataStream::Ok}, buf = {<QIODevice> = {<QObject> = {_vptr.QObject = 0x7ffff73f70d0 <vtable for QBuffer+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72df1c0 <qt_meta_stringdata_QObject>, data = 0x7ffff72df0a0 <qt_meta_data_QObject>, static_metacall = 0x7ffff7157972 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0xa59430}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72e1e40 <qt_meta_stringdata_Qt>, data = 0x7ffff72df2e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f2640 <QObject::staticMetaObject>, stringdata = 0x7ffff72c7600 <qt_meta_stringdata_QIODevice>, data = 0x7ffff72c7500 <qt_meta_data_QIODevice>, static_metacall = 0x7ffff704f790 <QIODevice::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f76e0 <QIODevice::staticMetaObject>, stringdata = 0x7ffff72a7ac0 <qt_meta_stringdata_QBuffer>, data = 0x7ffff72a7a60 <qt_meta_data_QBuffer>, static_metacall = 0x7ffff7031ca6 <QBuffer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}}, <No data fields>}
#11 0x00007fffe9e1486c in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QByteArray const&>, void, void (QQmlEngineDebugServiceImpl::*)(QByteArray const&)>::call (arg=<optimized out>, o=<optimized out>, f=<optimized out>) at /home/marcusbackman/Qt_/qt5/qtbase/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:136
No locals.
#12 QtPrivate::FunctionPointer<void (QQmlEngineDebugServiceImpl::*)(QByteArray const&)>::call<QtPrivate::List<QByteArray const&>, void> (arg=<optimized out>, o=<optimized out>, f=<optimized out>) at /home/marcusbackman/Qt_/qt5/qtbase/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:169
No locals.
#13 QtPrivate::QSlotObject<void (QQmlEngineDebugServiceImpl::*)(QByteArray const&), QtPrivate::List<QByteArray const&>, void>::impl (which=<optimized out>, this_=<optimized out>, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /home/marcusbackman/Qt_/qt5/qtbase/include/QtCore/../../src/corelib/kernel/qobject_impl.h:120
No locals.
#14 0x00007ffff714c3ed in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=0x6b6480, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
No locals.
#15 QMetaCallEvent::placeMetaCall (this=0x7fffd4009c50, object=0x6b6480) at kernel/qobject.cpp:501
No locals.
#16 0x00007ffff7150bee in QObject::event (this=0x6b6480, e=<optimized out>) at kernel/qobject.cpp:1246
mce = <optimized out>
sw = {receiver = 0x6b6480, previousSender = 0x0, currentSender = {sender = 0x6b6480, signal = 7, ref = 1}, switched = true}
#17 0x00007ffff712009d in QCoreApplicationPrivate::notify_helper (receiver=receiver@entry=0x6b6480, event=event@entry=0x7fffd4009c50) at kernel/qcoreapplication.cpp:1152
No locals.
#18 0x00007ffff712012b in doNotify (receiver=receiver@entry=0x6b6480, event=event@entry=0x7fffd4009c50) at kernel/qcoreapplication.cpp:1093
__PRETTY_FUNCTION__ = "bool doNotify(QObject*, QEvent*)"
#19 0x00007ffff7120269 in QCoreApplication::notify (this=this@entry=0x7fffffffe080, receiver=receiver@entry=0x6b6480, event=event@entry=0x7fffd4009c50) at kernel/qcoreapplication.cpp:1079
No locals.
#20 0x00007ffff79bfdce in QGuiApplication::notify (this=0x7fffffffe080, object=0x6b6480, event=0x7fffd4009c50) at kernel/qguiapplication.cpp:1688
No locals.
#21 0x00007ffff71201f4 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x6b6480, event=event@entry=0x7fffd4009c50) at kernel/qcoreapplication.cpp:1018
selfRequired = true
result = false
cbdata = {0x6b6480, 0x7fffd4009c50, 0x7fffffffdc8f}
d = <optimized out>
threadData = 0x61bdc0
#22 0x00007ffff7125651 in QCoreApplication::sendEvent (event=0x7fffd4009c50, receiver=0x6b6480) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
No locals.
#23 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x61bdc0) at kernel/qcoreapplication.cpp:1678
e = 0x7fffd4009c50
r = 0x6b6480
__PRETTY_FUNCTION__ = "static void QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)"
locker = {val = 6405616}
startOffset = 0
i = @0x61bde4: 1
cleanup = {receiver = 0x0, event_type = 0, data = 0x61bdc0, exceptionCaught = true}
#24 0x00007ffff7125a3a in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1532
data = <optimized out>
#25 0x00007ffff717b8da in postEventSourceDispatch (s=0x657630) at kernel/qeventdispatcher_glib.cpp:276
source = 0x657630
#26 0x00007ffff4868197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#27 0x00007ffff48683f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#28 0x00007ffff486849c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#29 0x00007ffff717b1e9 in QEventDispatcherGlib::processEvents (this=0x657710, flags=...) at kernel/qeventdispatcher_glib.cpp:423
d = 0x65b0d0
canWait = true
savedFlags = <optimized out>
result = <optimized out>
#30 0x00007ffff7f5038a in QPAEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at qeventdispatcher_glib.cpp:122
No locals.
#31 0x00007ffff711df61 in QEventLoop::processEvents (this=this@entry=0x7fffffffdfe0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:134
d = <optimized out>
#32 0x00007ffff711e3da in QEventLoop::exec (this=this@entry=0x7fffffffdfe0, flags=flags@entry=...) at kernel/qeventloop.cpp:212
d = 0x7f0380
locker = {val = 6405312}
__PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
ref = {d = 0x7f0380, locker = @0x7fffffffdf40, exceptionCaught = true}
#33 0x00007ffff7127e26 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
threadData = 0x61bdc0
__PRETTY_FUNCTION__ = "static int QCoreApplication::exec()"
eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff73fa2e8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72df1c0 <qt_meta_stringdata_QObject>, data = 0x7ffff72df0a0 <qt_meta_data_QObject>, static_metacall = 0x7ffff7157972 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7f0380}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72e1e40 <qt_meta_stringdata_Qt>, data = 0x7ffff72df2e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f2640 <QObject::staticMetaObject>, stringdata = 0x7ffff72da180 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff72da120 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff711e07e <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
returnCode = <optimized out>
#34 0x00007ffff79bacc2 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1679
No locals.
#35 0x0000000000400ef7 in main (Reading in symbols for ../sysdeps/x86/libc-start.c...done.
argc=1, argv=0x7fffffffe1a8) at ../modal-popup/main.cpp:11
app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7ffff7dc2048 <vtable for QGuiApplication+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72df1c0 <qt_meta_stringdata_QObject>, data = 0x7ffff72df0a0 <qt_meta_data_QObject>, static_metacall = 0x7ffff7157972 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x61c1e0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72e1e40 <qt_meta_stringdata_Qt>, data = 0x7ffff72df2e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f2640 <QObject::staticMetaObject>, stringdata = 0x7ffff72da760 <qt_meta_stringdata_QCoreApplication>, data = 0x7ffff72da640 <qt_meta_data_QCoreApplication>, static_metacall = 0x7ffff7121cda <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffe080}, static staticMetaObject = {d = {superdata = 0x7ffff73fa480 <QCoreApplication::staticMetaObject>, stringdata = 0x7ffff7cf5ca0 <qt_meta_stringdata_QGuiApplication>, data = 0x7ffff7cf5a40 <qt_meta_data_QGuiApplication>, static_metacall = 0x7ffff79c541e <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
engine = Reading in symbols for qml/qqmlapplicationengine.cpp...done.
Reading in symbols for jsapi/qjsengine.cpp...done.
{<QQmlEngine> = {<QJSEngine> = {<QObject> = {_vptr.QObject = 0x7ffff7894570 <vtable for QQmlApplicationEngine+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72df1c0 <qt_meta_stringdata_QObject>, data = 0x7ffff72df0a0 <qt_meta_data_QObject>, static_metacall = 0x7ffff7157972 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x66c270}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff72e1e40 <qt_meta_stringdata_Qt>, data = 0x7ffff72df2e0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff73f2640 <QObject::staticMetaObject>, stringdata = 0x7ffff77c6920 <qt_meta_stringdata_QJSEngine>, data = 0x7ffff77c68e0 <qt_meta_data_QJSEngine>, static_metacall = 0x7ffff754e2ea <QJSEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d = Reading in symbols for qml/v8/qv8engine.cpp...done.
0x66cac0}, static staticMetaObject = {d = {superdata = 0x7ffff78901e0 <QJSEngine::staticMetaObject>, stringdata = 0x7ffff77fbb60 <qt_meta_stringdata_QQmlEngine>, data = 0x7ffff77fbac0 <qt_meta_data_QQmlEngine>, static_metacall = 0x7ffff7695288 <QQmlEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff7892640 <QQmlEngine::staticMetaObject>, stringdata = 0x7ffff7803ae0 <qt_meta_stringdata_QQmlApplicationEngine>, data = 0x7ffff78039e0 <qt_meta_data_QQmlApplicationEngine>, static_metacall = 0x7ffff773b0ea <QQmlApplicationEngine::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
Current language: auto
The current source language is "auto; currently c++".