Bug 385511

Summary: Plasma crashed after connecting to an OpenVPN
Product: [Plasma] plasmashell Reporter: pedron.alexandre
Component: generalAssignee: David Edmundson <kde>
Status: CLOSED DUPLICATE    
Severity: crash CC: gb0101010101, gnu4ever, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.5.5   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: DrKonqi report (Aug. 4th 2018)

Description pedron.alexandre 2017-10-09 10:23:34 UTC 
Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-96-generic x86_64
Distribution: Ubuntu 16.04.3 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was connecting to an OpenVPN when Plasma crashed. It happens from time to time but not every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f08d254e8c0 (LWP 2133))]

Thread 12 (Thread 0x7f07f6226700 (LWP 3108)):
#0  0x00007f08cc448360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f08cd357a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3d5f470) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x3d5f018, mutex=mutex@entry=0x3d5f010, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f08d05f592e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x3d5f008) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x3d5ef90) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f08d05f61b3 in QSGRenderThread::run (this=0x3d5ef90) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f08cd3567be in QThreadPrivate::start (arg=0x3d5ef90) at thread/qthread_unix.cpp:331
#7  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f07f5015700 (LWP 2944)):
#0  0x00007f08cc448360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f08cd357a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3288a10) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x2edbbc8, mutex=mutex@entry=0x2edbbc0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f08d05f592e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x2edbbb8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x2edbb40) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f08d05f61b3 in QSGRenderThread::run (this=0x2edbb40) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f08cd3567be in QThreadPrivate::start (arg=0x2edbb40) at thread/qthread_unix.cpp:331
#7  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f07ff3ff700 (LWP 2408)):
#0  0x00007f08cc448360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f08cd357a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x26ad6f0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x26a1ec8, mutex=mutex@entry=0x26a1ec0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f08d05f592e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x26a1eb8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x26a1e40) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f08d05f61b3 in QSGRenderThread::run (this=0x26a1e40) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f08cd3567be in QThreadPrivate::start (arg=0x26a1e40) at thread/qthread_unix.cpp:331
#7  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f08062c6700 (LWP 2401)):
#0  0x00007f08cc448360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f08cd357a5b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x253c620) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x248e9c8, mutex=mutex@entry=0x248e9c0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f08d05f592e in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x248e9b8) at scenegraph/qsgthreadedrenderloop.cpp:224
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x248e940) at scenegraph/qsgthreadedrenderloop.cpp:657
#5  0x00007f08d05f61b3 in QSGRenderThread::run (this=0x248e940) at scenegraph/qsgthreadedrenderloop.cpp:686
#6  0x00007f08cd3567be in QThreadPrivate::start (arg=0x248e940) at thread/qthread_unix.cpp:331
#7  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f081bdf9700 (LWP 2371)):
#0  0x00007f08cd34ed5f in QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2938d88: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  QGenericAtomicOps<QBasicAtomicOps<8> >::testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x2938d88: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  QBasicAtomicPointer<QMutexData>::testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x2938d88) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:278
#3  QBasicMutex::fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2938d88) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2938d88) at thread/qmutex.cpp:264
#5  0x00007f08cd58cd81 in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  QThreadData::canWaitLocked (this=0x2938d60) at ../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:240
#8  postEventSourcePrepare (s=0x7f081400d5b0, timeout=0x7f081bdf8b04) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f08c99f391d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f08c99f42bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f08cd58d7eb in QEventDispatcherGlib::processEvents (this=0x7f0814000960, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7f081bdf8cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f08cd351834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f08130dd7d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#16 0x00007f08cd3567be in QThreadPrivate::start (arg=0x293bbe0) at thread/qthread_unix.cpp:331
#17 0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f081b5f8700 (LWP 2230)):
#0  0x00007f08ccc6070d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f08c99f438c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f08cd58d7eb in QEventDispatcherGlib::processEvents (this=0x7f080c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7f081b5f7c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f08cd351834 in QThread::exec (this=this@entry=0x1d00b60) at thread/qthread.cpp:503
#6  0x00007f08d057fed6 in QQuickPixmapReader::run (this=0x1d00b60) at util/qquickpixmapcache.cpp:817
#7  0x00007f08cd3567be in QThreadPrivate::start (arg=0x1d00b60) at thread/qthread_unix.cpp:331
#8  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f08a3bcc700 (LWP 2211)):
#0  0x00007f08cc448360 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f08d1f9ebd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f08d1f9ec19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f08a94bb700 (LWP 2210)):
#0  0x00007f08c99f3ef4 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f08c99f43f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f08cd58d7eb in QEventDispatcherGlib::processEvents (this=0x7f089c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7f08a94bace0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f08cd351834 in QThread::exec (this=this@entry=0x15bff70) at thread/qthread.cpp:503
#6  0x00007f08cfbf93c5 in QQmlThreadPrivate::run (this=0x15bff70) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f08cd3567be in QThreadPrivate::start (arg=0x15bff70) at thread/qthread_unix.cpp:331
#8  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f08ab379700 (LWP 2188)):
#0  0x00007f08c9a38a94 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f08c99f423d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f08cd58d7eb in QEventDispatcherGlib::processEvents (this=0x7f08a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7f08ab378ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f08cd351834 in QThread::exec (this=this@entry=0x1647f10) at thread/qthread.cpp:503
#6  0x00007f08cfbf93c5 in QQmlThreadPrivate::run (this=0x1647f10) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f08cd3567be in QThreadPrivate::start (arg=0x1647f10) at thread/qthread_unix.cpp:331
#8  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f08b79d9700 (LWP 2175)):
#0  0x00007f08cd58b7d2 in QTimerInfoList::timerWait (this=0x7f08b0002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:380
#1  0x00007f08cd58cbce in timerSourcePrepareHelper (timeout=0x7f08b79d8b24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#2  timerSourcePrepare (source=<optimized out>, timeout=0x7f08b79d8b24) at kernel/qeventdispatcher_glib.cpp:160
#3  0x00007f08c99f391d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f08c99f42bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f08cd58d7eb in QEventDispatcherGlib::processEvents (this=0x7f08b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7f08b79d8ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f08cd351834 in QThread::exec (this=this@entry=0x1462210) at thread/qthread.cpp:503
#9  0x00007f08cfbf93c5 in QQmlThreadPrivate::run (this=0x1462210) at qml/ftw/qqmlthread.cpp:141
#10 0x00007f08cd3567be in QThreadPrivate::start (arg=0x1462210) at thread/qthread_unix.cpp:331
#11 0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f08be7a4700 (LWP 2135)):
#0  0x00007f08ccc6070d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f08d0d25c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f08d0d278d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f08c0f24889 in QXcbEventReader::run (this=0x138c2a0) at qxcbconnection.cpp:1271
#4  0x00007f08cd3567be in QThreadPrivate::start (arg=0x138c2a0) at thread/qthread_unix.cpp:331
#5  0x00007f08cc4426ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f08ccc6c3dd in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f08d254e8c0 (LWP 2133)):
[KCrash Handler]
#6  0x00007f08cd566555 in QMetaObject::activate (sender=sender@entry=0x7f08b5fac6e8, signal_index=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3759
#7  0x00007f08cf9c9132 in VDMModelDelegateDataType::notify (this=<optimized out>, items=..., index=0, count=15, roles=...) at util/qqmladaptormodel.cpp:171
#8  0x00007f08cfc3aada in QQmlAdaptorModel::notify (roles=..., count=15, index=0, items=..., this=0x3983298) at ../../include/QtQml/5.5.1/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:118
#9  QQmlDelegateModel::_q_itemsChanged (this=this@entry=0x3982bd0, index=index@entry=0, count=15, roles=...) at types/qqmldelegatemodel.cpp:1144
#10 0x00007f08cfc3f6f2 in QQmlDelegateModel::_q_layoutChanged (this=0x3982bd0, parents=..., hint=<optimized out>) at types/qqmldelegatemodel.cpp:1608
#11 0x00007f08cfc621af in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x3982bd0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=14, _a=_a@entry=0x7ffee3b7a9d0) at .moc/moc_qqmldelegatemodel_p.cpp:205
#12 0x00007f08cfc62968 in QQmlDelegateModel::qt_metacall (this=0x3982bd0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7ffee3b7a9d0) at .moc/moc_qqmldelegatemodel_p.cpp:344
#13 0x00007f08cd565ee0 in QMetaObject::activate (sender=sender@entry=0x24f9390, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffee3b7a9d0) at kernel/qobject.cpp:3728
#14 0x00007f08cd566537 in QMetaObject::activate (sender=sender@entry=0x24f9390, m=m@entry=0x7f08cd77fec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffee3b7a9d0) at kernel/qobject.cpp:3578
#15 0x00007f08cd5e1f16 in QAbstractItemModel::layoutChanged (this=this@entry=0x24f9390, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:562
#16 0x00007f08cd506b4a in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=<optimized out>, source_top_left=..., source_bottom_right=..., roles=...) at itemmodels/qsortfilterproxymodel.cpp:1207
#17 0x00007f08cd5085f8 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x24f9390, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=5, _a=_a@entry=0x7ffee3b7acd0) at .moc/moc_qsortfilterproxymodel.cpp:202
#18 0x00007f08cd565d2a in QMetaObject::activate (sender=sender@entry=0x352e440, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffee3b7acd0) at kernel/qobject.cpp:3713
#19 0x00007f08cd566537 in QMetaObject::activate (sender=sender@entry=0x352e440, m=m@entry=0x7f08cd77fec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffee3b7acd0) at kernel/qobject.cpp:3578
#20 0x00007f08cd5e1e2c in QAbstractItemModel::dataChanged (this=this@entry=0x352e440, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:548
#21 0x00007f07fcb7dfbd in NetworkModel::updateItem (this=this@entry=0x352e440, item=item@entry=0x42f1aa0) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:566
#22 0x00007f07fcb83bbf in NetworkModel::addActiveConnection (this=this@entry=0x352e440, activeConnection=...) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:294
#23 0x00007f07fcb84073 in NetworkModel::activeConnectionAdded (this=0x352e440, activeConnection=...) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:589
#24 0x00007f08cd565baf in QtPrivate::QSlotObjectBase::call (a=0x7ffee3b7afd0, r=0x352e440, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#25 QMetaObject::activate (sender=sender@entry=0x7f07fcb669a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7ffee3b7afd0) at kernel/qobject.cpp:3698
#26 0x00007f08cd566537 in QMetaObject::activate (sender=sender@entry=0x7f07fcb669a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, m=m@entry=0x7f07fcb64800 <NetworkManager::Notifier::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7ffee3b7afd0) at kernel/qobject.cpp:3578
#27 0x00007f07fc919f85 in NetworkManager::Notifier::activeConnectionAdded (this=this@entry=0x7f07fcb669a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, _t1=...) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_manager.cpp:422
#28 0x00007f07fc8a05a0 in NetworkManager::NetworkManagerPrivate::propertiesChanged (this=0x7f07fcb669a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, changedProperties=...) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/src/manager.cpp:696
#29 0x00007f08cd565baf in QtPrivate::QSlotObjectBase::call (a=0x7ffee3b7b2e0, r=0x7f07fcb669a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#30 QMetaObject::activate (sender=sender@entry=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffee3b7b2e0) at kernel/qobject.cpp:3698
#31 0x00007f08cd566537 in QMetaObject::activate (sender=sender@entry=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, m=m@entry=0x7f07fcb64c80 <OrgFreedesktopNetworkManagerInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffee3b7b2e0) at kernel/qobject.cpp:3578
#32 0x00007f07fc925210 in OrgFreedesktopNetworkManagerInterface::PropertiesChanged (_t1=..., this=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_nm-managerinterface.cpp:440
#33 OrgFreedesktopNetworkManagerInterface::qt_static_metacall (_o=_o@entry=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=3, _a=_a@entry=0x7ffee3b7b480) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_nm-managerinterface.cpp:206
#34 0x00007f07fc92b9b0 in OrgFreedesktopNetworkManagerInterface::qt_metacall (this=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7ffee3b7b480) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_nm-managerinterface.cpp:389
#35 0x00007f08d2690913 in QDBusConnectionPrivate::deliverCall (this=0x1e37e50, object=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:978
#36 0x00007f08cd566c01 in QObject::event (this=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=<optimized out>) at kernel/qobject.cpp:1239
#37 0x00007f08ce03a05c in QApplicationPrivate::notify_helper (this=this@entry=0x13724d0, receiver=receiver@entry=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=e@entry=0x3a86700) at kernel/qapplication.cpp:3716
#38 0x00007f08ce03f516 in QApplication::notify (this=0x7ffee3b7bba0, receiver=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=0x3a86700) at kernel/qapplication.cpp:3499
#39 0x00007f08cd53738b in QCoreApplication::notifyInternal (this=0x7ffee3b7bba0, receiver=0x7f07fcb669c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, event=event@entry=0x3a86700) at kernel/qcoreapplication.cpp:965
#40 0x00007f08cd539786 in QCoreApplication::sendEvent (event=0x3a86700, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1368300) at kernel/qcoreapplication.cpp:1593
#42 0x00007f08cd539c68 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#43 0x00007f08cd58d3c3 in postEventSourceDispatch (s=0x13af5d0) at kernel/qeventdispatcher_glib.cpp:271
#44 0x00007f08c99f4197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f08c99f43f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f08c99f449c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f08cd58d7cf in QEventDispatcherGlib::processEvents (this=0x13b4220, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#48 0x00007f08cd534b4a in QEventLoop::exec (this=this@entry=0x7ffee3b7ba40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#49 0x00007f08cd53cbec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#50 0x00007f08cd870bfc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#51 0x00007f08ce036495 in QApplication::exec () at kernel/qapplication.cpp:2976
#52 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 382159, bug 378609, bug 376591, bug 374586, bug 374580.

Reported using DrKonqi
Comment 1 David Edmundson 2017-10-10 14:47:48 UTC 

*** This bug has been marked as a duplicate of bug 346118 ***
Comment 2 David Edmundson 2017-10-24 09:39:43 UTC 
*** Bug 386092 has been marked as a duplicate of this bug. ***
Comment 3 Valdo 2018-08-04 21:59:28 UTC 
Created attachment 114297 [details]
DrKonqi report (Aug. 4th 2018)

Reopening this bug to let everyone know it's NOT solved. Despite of its previous status ("RESOLVED DUPLICATE of bug 346118" - I highly doubt it's a duplicate).
Comment 4 David Edmundson 2018-08-04 22:08:01 UTC 
Your backtrace clearly starts with:

Application: plasmashell (5.5.5)

and then I spent time reading further to see the line it refers to 566 is definitely changed and it isn't calling QAIM::dataChanged.

Maybe this isn't fixed, but that backtrace only shows that old versions before the supposed fix unsurprisngly don't have the supposed fix.
Comment 5 Valdo 2018-08-04 22:41:00 UTC 
Thanks for your prompt reply David.
It's too technical for me (I didn't get that part: "the line it refers to 566 is definitely changed and it isn't calling QAIM::dataChanged.") but never mind, at least I prefer a CLOSED status than a RESOLVED one, since I'm facing that bug every day :)
So assuming Plasma 5.5.5 stopped being maintained a long time ago (funny for a Kubuntu LTS release btw), no chance there will ever be a fix, right?
Comment 6 David Edmundson 2018-08-04 22:47:26 UTC 
From a KDE POV, we don't control what Kubuntu put in their LTS.
Our first LTS was Plasma 5.8.

There is the option of asking Kubuntu to backport the supposed fix.
Comment 7 Valdo 2018-08-04 23:22:40 UTC 
I know KDE and Kubuntu teams are separate ones. Now, if Plasma 5.8 was the very first LTS, I understand there was no better solution at the time for the Kubuntu team than Plasma 5.5 (thanks for the explanation).
Getting in touch with the Kubuntu team could be an option, but considering the support of Kubuntu 16.04 will end in April 2019 (9 months from now), I guess the wisest option will be to upgrade to Kubuntu 18.04 when possible :) Better concentrate on 18.04 bugs than backport an uncertain fix for a very short duration...