https://bugs.kde.org/show_bug.cgi?id=359611
Martin Kyral <sine.nom...@centrum.cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sine.nom...@centrum.cz

--- Comment #23 from Martin Kyral <sine.nom...@centrum.cz> ---
I experienced plasmashell hangups on DBUS call too. Now, I can use plasmshell,
but I had to disable powerdevil and the battery widget. Backtrace:

(gdb) i th
  Id   Target Id         Frame 
    8    Thread 0x7f1cb5317700 (LWP 2091) "QXcbEventReader" 0x00007f1ccd2a6fdd
in poll () at ../sysdeps/unix/syscall-template.S:84
      7    Thread 0x7f1cafb65700 (LWP 2096) "QDBusConnection"
0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
        6    Thread 0x7f1cae324700 (LWP 2123) "QQmlThread" 0x00007f1ccd2a6fdd
in poll () at ../sysdeps/unix/syscall-template.S:84
          5    Thread 0x7f1ca6359700 (LWP 2168) "QQmlThread" 0x00007f1ccd2a6fdd
in poll () at ../sysdeps/unix/syscall-template.S:84
            4    Thread 0x7f1ca498c700 (LWP 2181) "QQmlThread"
0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
              3    Thread 0x7f1c9afb9700 (LWP 2259) "plasmashell"
pthread_cond_wait@@GLIBC_2.3.2 ()
                  at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
                    2    Thread 0x7f1c13fff700 (LWP 2311) "QQuickPixmapRea"
0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
                    * 1    Thread 0x7f1cbea06940 (LWP 2070) "plasmashell"
pthread_cond_wait@@GLIBC_2.3.2 ()
                        at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
                        (gdb) t a a bt

                        Thread 8 (Thread 0x7f1cb5317700 (LWP 2091)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cd240c272 in _xcb_conn_wait (__timeout=-1, __nfds=1,
__fds=0x7f1cb5316b80) at /usr/include/bits/poll2.h:46
#2  0x00007f1cd240c272 in _xcb_conn_wait (c=c@entry=0x56014cc91ac0,
cond=cond@entry=0x56014cc91b00, vector=vector@entry=0x0, count=count@entry=0x0)
at xcb_conn.c:459
#3  0x00007f1cd240dee7 in xcb_wait_for_event (c=0x56014cc91ac0) at xcb_in.c:693
#4  0x00007f1cb756a349 in QXcbEventReader::run() (this=0x56014cc9c270) at
qxcbconnection.cpp:1313
#5  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x56014cc9c270) at
thread/qthread_unix.cpp:340
#6  0x00007f1ccc5ea60a in start_thread (arg=0x7f1cb5317700) at
pthread_create.c:334
#7  0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

                            Thread 7 (Thread 0x7f1cafb65700 (LWP 2096)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cc8d7516c in g_main_context_iterate (priority=2147483647, n_fds=3,
fds=0x7f1ca8003020, timeout=<optimized out>, context=0x7f1ca8000990) at
gmain.c:4135
#2  0x00007f1cc8d7516c in g_main_context_iterate
(context=context@entry=0x7f1ca8000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f1cc8d7527c in g_main_context_iteration (context=0x7f1ca8000990,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f1cce0e1d0b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f1ca80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1cce08a6ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f1cafb64c50, flags=..., 
            flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ccdeb4004 in QThread::exec() (this=this@entry=0x7f1cce8eb040
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:503
#7  0x00007f1cce877445 in QDBusConnectionManager::run() (this=0x7f1cce8eb040
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:181
#8  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x7f1cce8eb040
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:340
#9  0x00007f1ccc5ea60a in start_thread (arg=0x7f1cafb65700) at
pthread_create.c:334
#10 0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f1cae324700 (LWP 2123)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cc8d7516c in g_main_context_iterate (priority=2147483647, n_fds=1,
fds=0x7f1ca0002e70, timeout=<optimized out>, context=0x7f1ca0000990) at
gmain.c:4135
#2  0x00007f1cc8d7516c in g_main_context_iterate
(context=context@entry=0x7f1ca0000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f1cc8d7527c in g_main_context_iteration (context=0x7f1ca0000990,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f1cce0e1d0b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f1ca00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1cce08a6ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f1cae323c60, flags=..., 
            flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ccdeb4004 in QThread::exec() (this=this@entry=0x56014cd73a00) at
thread/qthread.cpp:503
#7  0x00007f1cd12a51b5 in QQmlThreadPrivate::run() (this=0x56014cd73a00)
    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x56014cd73a00) at
thread/qthread_unix.cpp:340
#9  0x00007f1ccc5ea60a in start_thread (arg=0x7f1cae324700) at
pthread_create.c:334
#10 0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

    Thread 5 (Thread 0x7f1ca6359700 (LWP 2168)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cc8d7516c in g_main_context_iterate (priority=2147483647, n_fds=1,
fds=0x7f1c9c003070, timeout=<optimized out>, context---Type <return> to
continue, or q <return> to quit--- 
        =0x7f1c9c000990) at gmain.c:4135
#2  0x00007f1cc8d7516c in g_main_context_iterate
(context=context@entry=0x7f1c9c000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f1cc8d7527c in g_main_context_iteration (context=0x7f1c9c000990,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f1cce0e1cef in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f1c9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f1cce08a6ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f1ca6358c60, flags=..., 
            flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ccdeb4004 in QThread::exec() (this=this@entry=0x56014d0bdcc0) at
thread/qthread.cpp:503
#7  0x00007f1cd12a51b5 in QQmlThreadPrivate::run() (this=0x56014d0bdcc0)
    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x56014d0bdcc0) at
thread/qthread_unix.cpp:340
#9  0x00007f1ccc5ea60a in start_thread (arg=0x7f1ca6359700) at
pthread_create.c:334
#10 0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

    Thread 4 (Thread 0x7f1ca498c700 (LWP 2181)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cc8d7516c in g_main_context_iterate (priority=2147483647, n_fds=1,
fds=0x7f1c94003070, timeout=<optimized out>, context=0x7f1c94000990) at
gmain.c:4135
#2  0x00007f1cc8d7516c in g_main_context_iterate
(context=context@entry=0x7f1c94000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f1cc8d7527c in g_main_context_iteration (context=0x7f1c94000990,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f1cce0e1cef in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f1c940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f1cce08a6ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f1ca498bc60, flags=..., 
            flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ccdeb4004 in QThread::exec() (this=this@entry=0x56014d228c70) at
thread/qthread.cpp:503
#7  0x00007f1cd12a51b5 in QQmlThreadPrivate::run() (this=0x56014d228c70)
    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x56014d228c70) at
thread/qthread_unix.cpp:340
#9  0x00007f1ccc5ea60a in start_thread (arg=0x7f1ca498c700) at
pthread_create.c:334
#10 0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

    Thread 3 (Thread 0x7f1c9afb9700 (LWP 2259)):
#0  0x00007f1ccc5efb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1cd3d122d4 in QTWTF::TCMalloc_PageHeap::scavengerThread()
(this=0x7f1cd3dfb380 <QTWTF::pageheap_memory>)
            at
/usr/src/debug/qtscript-opensource-src-5.6.0-rc/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f1cd3d12319 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
(context=<optimized out>)
                at
/usr/src/debug/qtscript-opensource-src-5.6.0-rc/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f1ccc5ea60a in start_thread (arg=0x7f1c9afb9700) at
pthread_create.c:334
#4  0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

                Thread 2 (Thread 0x7f1c13fff700 (LWP 2311)):
#0  0x00007f1ccd2a6fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1cc8d7516c in g_main_context_iterate (priority=2147483647, n_fds=1,
fds=0x7f1c0c002f20, timeout=<optimized out>, context=0x7f1c0c000990) at
gmain.c:4135
#2  0x00007f1cc8d7516c in g_main_context_iterate
(context=context@entry=0x7f1c0c000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f1cc8d7527c in g_main_context_iteration (context=0x7f1c0c000990,
may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f1cce0e1cef in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f1c0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f1cce08a6ea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f1c13ffec10, flags=..., 
            flags@entry=...) at kernel/qeventloop.cpp:204
---Type <return> to continue, or q <return> to quit---
#6  0x00007f1ccdeb4004 in QThread::exec() (this=this@entry=0x56014d5843e0) at
thread/qthread.cpp:503
#7  0x00007f1cd1c3ed86 in QQuickPixmapReader::run() (this=0x56014d5843e0)
    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/quick/util/qquickpixmapcache.cpp:818
#8  0x00007f1ccdeb8e18 in QThreadPrivate::start(void*) (arg=0x56014d5843e0) at
thread/qthread_unix.cpp:340
#9  0x00007f1ccc5ea60a in start_thread (arg=0x7f1c13fff700) at
pthread_create.c:334
#10 0x00007f1ccd2b2a4d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

    Thread 1 (Thread 0x7f1cbea06940 (LWP 2070)):
#0  0x00007f1ccc5efb10 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1ccdeb9ccb in QWaitCondition::wait(QMutex*, unsigned long)
(time=18446744073709551615, this=0x5601502d2c80)
            at thread/qwaitcondition_unix.cpp:136
#2  0x00007f1ccdeb9ccb in QWaitCondition::wait(QMutex*, unsigned long)
(this=this@entry=0x5601502d2a90, mutex=mutex@entry=0x5601502d2a88,
time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f1cce8ce184 in QDBusPendingCallPrivate::waitForFinished()
(this=0x5601502d2a50) at qdbuspendingcall.cpp:234
#4  0x00007f1cce8cedb6 in QDBusPendingReplyData::argumentAt(int) const
(this=this@entry=0x7fffd6c34bd0, index=index@entry=0)
                at qdbuspendingreply.cpp:276
#5  0x00007f1c11326a56 in Solid::PowerManagement::appShouldConserveResources()
(this=0x7fffd6c34bd0)
                    at /usr/include/qt5/QtDBus/qdbuspendingreply.h:166
#6  0x00007f1c11326a56 in Solid::PowerManagement::appShouldConserveResources()
(this=0x7fffd6c34bd0)
                        at /usr/include/qt5/QtDBus/qdbuspendingreply.h:176
#7  0x00007f1c11326a56 in Solid::PowerManagement::appShouldConserveResources()
()
                            at
/usr/src/debug/kdelibs4support-5.19.0/src/solid/powermanagement.cpp:78
#8  0x00007f1c050c11dd in PowermanagementEngine::sourceRequestEvent(QString
const&) ()
                                at
/usr/lib64/qt5/plugins/plasma/dataengine/plasma_engine_powermanagement.so
#9  0x00007f1cd21968f9 in Plasma::DataEngine::connectSource(QString const&,
QObject*, unsigned int, Plasma::Types::IntervalAlignment) const
(newSource=<synthetic pointer>, sourceName=..., this=0x56014faf3f50)
                                    at
/usr/src/debug/plasma-framework-5.19.0/src/plasma/dataengine.cpp:594
#10 0x00007f1cd21968f9 in Plasma::DataEngine::connectSource(QString const&,
QObject*, unsigned int, Plasma::Types::IntervalAlignment) const
(this=0x56014faf3e90, source=...,
visualization=visualization@entry=0x5601502c4c10, pollingInterval=0,
intervalAlignment=Plasma::Types::NoAlignment) at
/usr/src/debug/plasma-framework-5.19.0/src/plasma/dataengine.cpp:113
#11 0x00007f1cad0f5455 in Plasma::DataSource::setConnectedSources(QStringList
const&) (this=0x5601502c4c10, sources=...)
                                        at
/usr/src/debug/plasma-framework-5.19.0/src/declarativeimports/core/datasource.cpp:59
#12 0x00007f1cad10c35b in Plasma::DataSource::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) (_o=_o@entry=0x5601502c4c10,
_c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=5,
_a=_a@entry=0x7fffd6c350c0)
                                            at
/usr/src/debug/plasma-framework-5.19.0/x86_64-redhat-linux-gnu/src/declarativeimports/core/moc_datasource.cpp:319
#13 0x00007f1cad10dcdb in Plasma::DataSource::qt_metacall(QMetaObject::Call,
int, void**) (this=0x5601502c4c10, _c=QMetaObject::WriteProperty, _id=5,
_a=0x7fffd6c350c0)
                                                at
/usr/src/debug/plasma-framework-5.19.0/x86_64-redhat-linux-gnu/src/declarativeimports/core/moc_datasource.cpp:374
#14 0x00007f1cd12247ea in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData
const&, QVariant const&, QQmlContextData*,
QFlags<QQmlPropertyPrivate::WriteFlag>) (object=object@entry=0x5601502c4c10,
property=..., value=..., context=context@entry=0x5601502af470, flags=...) at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlproperty.cpp:1252
#15 0x00007f1cd1226343 in QQmlPropertyPrivate::writeValueProperty(QObject*,
QQmlPropertyData const&, QVariant const&, QQmlContextData*,
QFlags<QQmlPropertyPrivate::WriteFlag>) (object=0x5601502c4c10, core=...,
value=..., context=0x5601502af470, flags=...)
                                                    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlproperty.cpp:1176
#16 0x00007f1cd1290f2e in QQmlBinding::write(QQmlPropertyData const&,
QV4::Value const&, bool, QFlags<QQmlPropertyPrivate::WriteFlag>)
(this=this@entry=0x5601502c4180, core=..., result=..., isUndefined=<optimized
out>, flags=...)
                                                        at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlbinding.cpp:327
#17 0x00007f1cd1291f8a in
QQmlBinding::update(QFlags<QQmlPropertyPrivate::WriteFlag>)
(this=0x5601502c4180, flags=...)
                                                            at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlbinding.cpp:191
#18 0x00007f1cd129b2b4 in
QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) (this=0x5601502aa7d0,
interrupt=...)
                                                                at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlobjectcreator.cpp:1191
#19 0x00007f1cd122bbd2 in
QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&)
(this=0x56014fac9780, i=...)
                                                                    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlincubator.cpp:348
                                                                    ---Type
<return> to continue, or q <return> to quit---
#20 0x00007f1cd122c804 in QQmlIncubationController::incubateFor(int)
(this=this@entry=0x56014d328030, msecs=<optimized out>)
                                                                        at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlincubator.cpp:395
#21 0x00007f1cd1f3585c in
KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int)
(this=0x56014d328020)
                                                                            at
/usr/src/debug/kdeclarative-5.19.0/src/kdeclarative/private/qmlobject_p.h:63
#22 0x00007f1cd1f3585c in
KDeclarative::QmlObjectIncubationController::incubatingObjectCountChanged(int)
(this=0x56014d328020, count=2) at
/usr/src/debug/kdeclarative-5.19.0/src/kdeclarative/private/qmlobject_p.h:79
#23 0x00007f1cd122c612 in QQmlEnginePrivate::incubate(QQmlIncubator&,
QQmlContextData*) (this=this@entry=
            0x56014d22c5f0, i=..., forContext=forContext@entry=0x56014fac26a0)
    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlincubator.cpp:97
#24 0x00007f1cd1227db8 in QQmlComponent::create(QQmlIncubator&, QQmlContext*,
QQmlContext*) (this=<optimized out>, incubator=..., context=<optimized out>,
forContext=forContext@entry=0x0)
        at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlcomponent.cpp:1052
#25 0x00007f1cd1f31cdb in
KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant>
const&) (this=0x56014d0afab0, initialProperties=...) at
/usr/src/debug/kdeclarative-5.19.0/src/kdeclarative/qmlobject.cpp:323
#26 0x00007f1cd3e3f747 in PlasmaQuick::AppletQuickItem::init()
(this=this@entry=0x56014cd663e0)
            at
/usr/src/debug/plasma-framework-5.19.0/src/plasmaquick/appletquickitem.cpp:544
#27 0x00007f1ca49a2f84 in AppletInterface::init() (this=0x56014cd663e0)
                at
/usr/src/debug/plasma-framework-5.19.0/src/scriptengines/qml/plasmoid/appletinterface.cpp:170
#28 0x00007f1cd3e40a68 in
PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange,
QQuickItem::ItemChangeData const&) (this=0x56014cd663e0,
change=QQuickItem::ItemSceneChange, value=...)
                    at
/usr/src/debug/plasma-framework-5.19.0/src/plasmaquick/appletquickitem.cpp:756
#29 0x00007f1cd1ccb9fe in QQuickItemPrivate::refWindow(QQuickWindow*)
(this=this@entry=0x56014fad1e50, c=c@entry=0x56014d3e2310)
                        at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/quick/items/qquickitem.cpp:2958
#30 0x00007f1cd1cce104 in QQuickItem::setParentItem(QQuickItem*)
(this=0x56014cd663e0, parentItem=0x56014fdb0720)
                            at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/quick/items/qquickitem.cpp:2679
#31 0x00007f1cd1cd0c71 in QQuickItem::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) (_o=_o@entry=0x56014cd663e0,
_c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=0,
_a=_a@entry=0x7fffd6c35e70) at .moc/moc_qquickitem.cpp:896
#32 0x00007f1cd1cd128b in QQuickItem::qt_metacall(QMetaObject::Call, int,
void**) (this=this@entry=0x56014cd663e0,
_c=_c@entry=QMetaObject::WriteProperty, _id=0, _a=_a@entry=0x7fffd6c35e70) at
.moc/moc_qquickitem.cpp:972
#33 0x00007f1cd3e40ae5 in
PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**)
(this=this@entry=0x56014cd663e0, _c=_c@entry=QMetaObject::WriteProperty,
_id=<optimized out>, _a=_a@entry=0x7fffd6c35e70)
                                at
/usr/src/debug/plasma-framework-5.19.0/x86_64-redhat-linux-gnu/src/plasmaquick/moc_appletquickitem.cpp:332
#34 0x00007f1ca49a3f25 in AppletInterface::qt_metacall(QMetaObject::Call, int,
void**) (this=0x56014cd663e0, _c=QMetaObject::WriteProperty, _id=<optimized
out>, _a=0x7fffd6c35e70)
                                    at
/usr/src/debug/plasma-framework-5.19.0/x86_64-redhat-linux-gnu/src/scriptengines/qml/moc_appletinterface.cpp:593
#35 0x00007f1cd12247ea in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData
const&, QVariant const&, QQmlContextData*,
QFlags<QQmlPropertyPrivate::WriteFlag>) (object=object@entry=0x56014cd663e0,
property=..., value=..., context=0x5601502a09a0, flags=...)
                                        at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/qml/qqmlproperty.cpp:1252
#36 0x00007f1cd11eaaf6 in
QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*,
QQmlPropertyData*, QV4::Value const&) (engine=engine@entry=0x56014d22c9e0,
object=object@entry=0x56014cd663e0, property=0x7f1c9401af88, value=...)
                                            at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:538
#37 0x00007f1cd11eb516 in
QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*,
QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&)
(engine=0x56014d22c9e0, qmlContext=0x5601502a09a0, object=0x56014cd663e0,
name=0x7f1c9b8013e0, revisionMode=QV4::QObjectWrapper::IgnoreRevision,
value=...)
                                                at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:425
#38 0x00007f1cd11eb642 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*,
QV4::Value const&) (m=0x7f1c9b8013e8, name=0x7f1c9b8013e0, value=...) at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/jsruntime/qv4qobjectwrapper.cpp:695
#39 0x00007f1cd11fbd86 in QV4::Runtime::setProperty(QV4::ExecutionEngine*,
QV4::Value const&, int, QV4::Value const&) (v=..., name=<optimized out>,
this=<optimized out>) at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/jsruntime/qv4object_p.h:302
#40 0x00007f1cd11fbd86 in QV4::Runtime::setProperty(QV4::ExecutionEngine*,
QV4::Value const&, int, QV4::Value const&) (engine=0x56014d22c9e0, object=...,
nameIndex=<optimized out>, value=...)
                                                    at
/usr/src/debug/qtdeclarative-opensource-src-5.6.0-rc/src/qml/jsruntime/qv4runtime.cpp:571
#41 0x00007f1c98041d78 in  ()
                                                    ---Type <return> to
continue, or q <return> to quit---
#42 0x0000000000000000 in  ()
                                                    (gdb)

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