Bug 378609

Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.6.0-040600rc7-generic x86_64
Distribution: Ubuntu 16.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I connect VPN via KDE network manager. Plasma shell crashes immediately.

The crash can be reproduced 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 0x7f39f1ed88c0 (LWP 1776))]

Thread 8 (Thread 0x7f392b0f6700 (LWP 2168)):
#0  0x00007f39e9381372 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f39ecf187eb in QEventDispatcherGlib::processEvents (this=0x7f39240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7f392b0f5cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f39eccdc834 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f392d5d47d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#6  0x00007f39ecce17be in QThreadPrivate::start (arg=0x333e370) at thread/qthread_unix.cpp:331
#7  0x00007f39ebdce6ba in start_thread (arg=0x7f392b0f6700) at pthread_create.c:333
#8  0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f393bfff700 (LWP 1905)):
#0  __GI___tls_get_addr (ti=0x7f39ed10c788) at dl-tls.c:829
#1  0x00007f39ecce0702 in get_thread_data () at thread/qthread_unix.cpp:181
#2  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:212
#3  0x00007f39ecf17d4a in postEventSourcePrepare (s=0x7f39340012d0, timeout=0x7f393bffead4) at kernel/qeventdispatcher_glib.cpp:247
#4  0x00007f39e938091d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f39e93812bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f39ecf187eb in QEventDispatcherGlib::processEvents (this=0x7f39340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7f393bffec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f39eccdc834 in QThread::exec (this=this@entry=0x10d18b0) at thread/qthread.cpp:503
#10 0x00007f39eff0aed6 in QQuickPixmapReader::run (this=0x10d18b0) at util/qquickpixmapcache.cpp:817
#11 0x00007f39ecce17be in QThreadPrivate::start (arg=0x10d18b0) at thread/qthread_unix.cpp:331
#12 0x00007f39ebdce6ba in start_thread (arg=0x7f393bfff700) at pthread_create.c:333
#13 0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f39c3bef700 (LWP 1858)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f39f1929bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f39f1929c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f39ebdce6ba in start_thread (arg=0x7f39c3bef700) at pthread_create.c:333
#4  0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f39c954b700 (LWP 1855)):
#0  0x00007f39ec5ebb5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f39e938138c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f39ecf187eb in QEventDispatcherGlib::processEvents (this=0x7f39bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7f39c954ace0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f39eccdc834 in QThread::exec (this=this@entry=0xcc31d0) at thread/qthread.cpp:503
#6  0x00007f39ef5843c5 in QQmlThreadPrivate::run (this=0xcc31d0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f39ecce17be in QThreadPrivate::start (arg=0xcc31d0) at thread/qthread_unix.cpp:331
#8  0x00007f39ebdce6ba in start_thread (arg=0x7f39c954b700) at pthread_create.c:333
#9  0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f39cb307700 (LWP 1852)):
#0  0x00007f39ec5e769d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f39e93c46f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f39e9380e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f39e9381330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f39ecf187eb in QEventDispatcherGlib::processEvents (this=0x7f39c40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7f39cb306ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f39eccdc834 in QThread::exec (this=this@entry=0xbab060) at thread/qthread.cpp:503
#8  0x00007f39ef5843c5 in QQmlThreadPrivate::run (this=0xbab060) at qml/ftw/qqmlthread.cpp:141
#9  0x00007f39ecce17be in QThreadPrivate::start (arg=0xbab060) at thread/qthread_unix.cpp:331
#10 0x00007f39ebdce6ba in start_thread (arg=0x7f39cb307700) at pthread_create.c:333
#11 0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f39d68fe700 (LWP 1840)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f39ec5ebb52 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f39e938138c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f39ecf187eb in QEventDispatcherGlib::processEvents (this=0x7f39d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7f39d68fdce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f39eccdc834 in QThread::exec (this=this@entry=0x8f4cd0) at thread/qthread.cpp:503
#7  0x00007f39ef5843c5 in QQmlThreadPrivate::run (this=0x8f4cd0) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f39ecce17be in QThreadPrivate::start (arg=0x8f4cd0) at thread/qthread_unix.cpp:331
#9  0x00007f39ebdce6ba in start_thread (arg=0x7f39d68fe700) at pthread_create.c:333
#10 0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f39dd1d7700 (LWP 1796)):
#0  0x00007f39ec5ebb5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f39f06b0c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f39f06b28d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f39df325629 in QXcbEventReader::run (this=0x82a880) at qxcbconnection.cpp:1253
#4  0x00007f39ecce17be in QThreadPrivate::start (arg=0x82a880) at thread/qthread_unix.cpp:331
#5  0x00007f39ebdce6ba in start_thread (arg=0x7f39dd1d7700) at pthread_create.c:333
#6  0x00007f39ec5f782d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f39f1ed88c0 (LWP 1776)):
[KCrash Handler]
#6  0x0000000000000031 in ?? ()
#7  0x00007f39ecef1557 in QMetaObject::activate (sender=sender@entry=0x5202450, signal_index=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3759
#8  0x00007f39ef354132 in VDMModelDelegateDataType::notify (this=<optimized out>, items=..., index=0, count=24, roles=...) at util/qqmladaptormodel.cpp:171
#9  0x00007f39ef5c5ada in QQmlAdaptorModel::notify (roles=..., count=24, index=0, items=..., this=0x46a89b8) at ../../include/QtQml/5.5.1/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:118
#10 QQmlDelegateModel::_q_itemsChanged (this=this@entry=0x46a82f0, index=index@entry=0, count=24, roles=...) at types/qqmldelegatemodel.cpp:1144
#11 0x00007f39ef5ca6f2 in QQmlDelegateModel::_q_layoutChanged (this=0x46a82f0, parents=..., hint=<optimized out>) at types/qqmldelegatemodel.cpp:1608
#12 0x00007f39ef5ed1af in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x46a82f0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=14, _a=_a@entry=0x7fffc2bb9360) at .moc/moc_qqmldelegatemodel_p.cpp:205
#13 0x00007f39ef5ed968 in QQmlDelegateModel::qt_metacall (this=0x46a82f0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7fffc2bb9360) at .moc/moc_qqmldelegatemodel_p.cpp:344
#14 0x00007f39ecef0ee0 in QMetaObject::activate (sender=sender@entry=0x457f2f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffc2bb9360) at kernel/qobject.cpp:3728
#15 0x00007f39ecef1537 in QMetaObject::activate (sender=sender@entry=0x457f2f0, m=m@entry=0x7f39ed10aec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffc2bb9360) at kernel/qobject.cpp:3578
#16 0x00007f39ecf6cf16 in QAbstractItemModel::layoutChanged (this=this@entry=0x457f2f0, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:562
#17 0x00007f39ece91b4a in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=<optimized out>, source_top_left=..., source_bottom_right=..., roles=...) at itemmodels/qsortfilterproxymodel.cpp:1207
#18 0x00007f39ece935f8 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x457f2f0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=5, _a=_a@entry=0x7fffc2bb9660) at .moc/moc_qsortfilterproxymodel.cpp:202
#19 0x00007f39ecef0d2a in QMetaObject::activate (sender=sender@entry=0x411c960, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffc2bb9660) at kernel/qobject.cpp:3713
#20 0x00007f39ecef1537 in QMetaObject::activate (sender=sender@entry=0x411c960, m=m@entry=0x7f39ed10aec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffc2bb9660) at kernel/qobject.cpp:3578
#21 0x00007f39ecf6ce2c in QAbstractItemModel::dataChanged (this=this@entry=0x411c960, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:548
#22 0x00007f39283b3fbd in NetworkModel::updateItem (this=this@entry=0x411c960, item=item@entry=0x4646d50) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:566
#23 0x00007f39283b9bbf in NetworkModel::addActiveConnection (this=this@entry=0x411c960, activeConnection=...) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:294
#24 0x00007f39283ba073 in NetworkModel::activeConnectionAdded (this=0x411c960, activeConnection=...) at /build/plasma-nm-0GjglL/plasma-nm-5.5.5/libs/models/networkmodel.cpp:589
#25 0x00007f39ecef0baf in QtPrivate::QSlotObjectBase::call (a=0x7fffc2bb9960, r=0x411c960, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#26 QMetaObject::activate (sender=sender@entry=0x7f392839c9a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fffc2bb9960) at kernel/qobject.cpp:3698
#27 0x00007f39ecef1537 in QMetaObject::activate (sender=sender@entry=0x7f392839c9a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, m=m@entry=0x7f392839a800 <NetworkManager::Notifier::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fffc2bb9960) at kernel/qobject.cpp:3578
#28 0x00007f392814ff85 in NetworkManager::Notifier::activeConnectionAdded (this=this@entry=0x7f392839c9a0 <(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
#29 0x00007f39280d65a0 in NetworkManager::NetworkManagerPrivate::propertiesChanged (this=0x7f392839c9a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, changedProperties=...) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/src/manager.cpp:696
#30 0x00007f39ecef0baf in QtPrivate::QSlotObjectBase::call (a=0x7fffc2bb9c70, r=0x7f392839c9a0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#31 QMetaObject::activate (sender=sender@entry=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffc2bb9c70) at kernel/qobject.cpp:3698
#32 0x00007f39ecef1537 in QMetaObject::activate (sender=sender@entry=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, m=m@entry=0x7f392839ac80 <OrgFreedesktopNetworkManagerInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fffc2bb9c70) at kernel/qobject.cpp:3578
#33 0x00007f392815b210 in OrgFreedesktopNetworkManagerInterface::PropertiesChanged (_t1=..., this=0x7f392839c9c0 <(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
#34 OrgFreedesktopNetworkManagerInterface::qt_static_metacall (_o=_o@entry=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=3, _a=_a@entry=0x7fffc2bb9e10) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_nm-managerinterface.cpp:206
#35 0x00007f39281619b0 in OrgFreedesktopNetworkManagerInterface::qt_metacall (this=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fffc2bb9e10) at /build/networkmanager-qt-yYCvz8/networkmanager-qt-5.18.0/obj-x86_64-linux-gnu/src/moc_nm-managerinterface.cpp:389
#36 0x00007f39f201e913 in QDBusConnectionPrivate::deliverCall (this=0x7f39bc3cbfe0, object=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:978
#37 0x00007f39ecef1c01 in QObject::event (this=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=<optimized out>) at kernel/qobject.cpp:1239
#38 0x00007f39ed9c505c in QApplicationPrivate::notify_helper (this=this@entry=0x813870, receiver=receiver@entry=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=e@entry=0x4a10d90) at kernel/qapplication.cpp:3716
#39 0x00007f39ed9ca516 in QApplication::notify (this=0x7fffc2bba530, receiver=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, e=0x4a10d90) at kernel/qapplication.cpp:3499
#40 0x00007f39ecec238b in QCoreApplication::notifyInternal (this=0x7fffc2bba530, receiver=0x7f392839c9c0 <(anonymous namespace)::Q_QGS_globalNetworkManager::innerFunction()::holder+32>, event=event@entry=0x4a10d90) at kernel/qcoreapplication.cpp:965
#41 0x00007f39ecec4786 in QCoreApplication::sendEvent (event=0x4a10d90, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x809600) at kernel/qcoreapplication.cpp:1593
#43 0x00007f39ecec4c68 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#44 0x00007f39ecf183c3 in postEventSourceDispatch (s=0x8540c0) at kernel/qeventdispatcher_glib.cpp:271
#45 0x00007f39e9381197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f39e93813f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f39e938149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f39ecf187cf in QEventDispatcherGlib::processEvents (this=0x848b30, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#49 0x00007f39ecebfb4a in QEventLoop::exec (this=this@entry=0x7fffc2bba3d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#50 0x00007f39ecec7bec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#51 0x00007f39ed1fbbfc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#52 0x00007f39ed9c1495 in QApplication::exec () at kernel/qapplication.cpp:2976
#53 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 376591, bug 374586, bug 374580, bug 372769, bug 372368.

Reported using DrKonqi