Bug 359335

Application: plasmashell (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.3.5-300.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
- What I was doing when the application crashed:
I clicked "Connect" next to an OpenVPN network name.

The crash sometimes also happens when I do the same to connect to a wlan network.

NetworkManager does connect to a network, it's just plasma that I need to reboot.

The crash isn't actually 100% reproducible, it's more like 80%.

The crash can be reproduced every time.

-- Backtrace:
Application: Plazma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f7510fe6940 (LWP 3197))]

Thread 6 (Thread 0x7f74ea651700 (LWP 3312)):
#0  0x00007f75089e1fdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7503f0616c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f74e4003070, timeout=<optimized out>, context=0x7f74e4000990) at gmain.c:4135
#2  0x00007f7503f0616c in g_main_context_iterate (context=context@entry=0x7f74e4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f7503f0627c in g_main_context_iteration (context=0x7f74e4000990, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f7509821ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f75097c8eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74ea650c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f75095e5434 in QThread::exec() (this=this@entry=0x55dbfb8d1cb0) at thread/qthread.cpp:503
#7  0x00007f750d9309b5 in QQmlThreadPrivate::run() (this=0x55dbfb8d1cb0) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f75095ea3de in QThreadPrivate::start(void*) (arg=0x55dbfb8d1cb0) at thread/qthread_unix.cpp:331
#9  0x00007f7507d2560a in start_thread (arg=0x7f74ea651700) at pthread_create.c:334
#10 0x00007f75089eda4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f74e1504700 (LWP 3323)):
#0  0x00007f75089ddbcd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7503f49390 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f74e1503a60, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f7503f49390 in g_wakeup_acknowledge (wakeup=0x7f74e40025a0) at gwakeup.c:210
#3  0x00007f7503f05c64 in g_main_context_check (context=context@entry=0x7f74dc000990, max_priority=2147483647, fds=fds@entry=0x7f74dc002e70, n_fds=n_fds@entry=1) at gmain.c:3632
#4  0x00007f7503f06110 in g_main_context_iterate (context=context@entry=0x7f74dc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#5  0x00007f7503f0627c in g_main_context_iteration (context=0x7f74dc000990, may_block=may_block@entry=1) at gmain.c:3901
#6  0x00007f7509821ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f75097c8eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74e1503c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f75095e5434 in QThread::exec() (this=this@entry=0x55dbfbbbb440) at thread/qthread.cpp:503
#9  0x00007f750d9309b5 in QQmlThreadPrivate::run() (this=0x55dbfbbbb440) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f75095ea3de in QThreadPrivate::start(void*) (arg=0x55dbfbbbb440) at thread/qthread_unix.cpp:331
#11 0x00007f7507d2560a in start_thread (arg=0x7f74e1504700) at pthread_create.c:334
#12 0x00007f75089eda4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f74db765700 (LWP 3360)):
#0  0x00007f75089ddbcd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7503f49390 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f74db764a60, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f7503f49390 in g_wakeup_acknowledge (wakeup=0x7f74dc002390) at gwakeup.c:210
#3  0x00007f7503f05c64 in g_main_context_check (context=context@entry=0x7f74d4000990, max_priority=2147483647, fds=fds@entry=0x7f74d4003070, n_fds=n_fds@entry=1) at gmain.c:3632
#4  0x00007f7503f06110 in g_main_context_iterate (context=context@entry=0x7f74d4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#5  0x00007f7503f0627c in g_main_context_iteration (context=0x7f74d4000990, may_block=may_block@entry=1) at gmain.c:3901
#6  0x00007f7509821ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f75097c8eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f74db764c60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f75095e5434 in QThread::exec() (this=this@entry=0x55dbfb7faf70) at thread/qthread.cpp:503
#9  0x00007f750d9309b5 in QQmlThreadPrivate::run() (this=0x55dbfb7faf70) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f75095ea3de in QThreadPrivate::start(void*) (arg=0x55dbfb7faf70) at thread/qthread_unix.cpp:331
#11 0x00007f7507d2560a in start_thread (arg=0x7f74db765700) at pthread_create.c:334
#12 0x00007f75089eda4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f74d9f1c700 (LWP 3363)):
#0  0x00007f7507d2ab10 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f7510788514 in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f7510a71380 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f7510788559 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f7507d2560a in start_thread (arg=0x7f74d9f1c700) at pthread_create.c:334
#4  0x00007f75089eda4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f744bbc7700 (LWP 3520)):
#0  0x00007f75089ddbcd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f7503f49390 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f744bbc6a40, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f7503f49390 in g_wakeup_acknowledge (wakeup=0x7f74d4002780) at gwakeup.c:210
#3  0x00007f7503f05c64 in g_main_context_check (context=context@entry=0x7f7444000990, max_priority=2147483647, fds=fds@entry=0x7f7444004ac0, n_fds=n_fds@entry=1) at gmain.c:3632
#4  0x00007f7503f06110 in g_main_context_iterate (context=context@entry=0x7f7444000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#5  0x00007f7503f0627c in g_main_context_iteration (context=0x7f7444000990, may_block=may_block@entry=1) at gmain.c:3901
#6  0x00007f7509821ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f74440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f75097c8eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f744bbc6c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f75095e5434 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f744d800547 in KCupsConnection::run() () at /lib64/libkcupslib.so
#10 0x00007f75095ea3de in QThreadPrivate::start(void*) (arg=0x55dbfe12a1b0) at thread/qthread_unix.cpp:331
#11 0x00007f7507d2560a in start_thread (arg=0x7f744bbc7700) at pthread_create.c:334
#12 0x00007f75089eda4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f7510fe6940 (LWP 3197)):
[KCrash Handler]
#6  0x0000000000000060 in  ()
#7  0x00007f75097faab7 in QMetaObject::activate(QObject*, int, void**) (sender=sender@entry=0x55dbff55af60, signal_index=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3759
#8  0x00007f750d6fc0e2 in VDMModelDelegateDataType::notify(QQmlAdaptorModel const&, QList<QQmlDelegateModelItem*> const&, int, int, QVector<int> const&) const (this=<optimized out>, items=..., index=0, count=65, roles=...) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/util/qqmladaptormodel.cpp:171
#9  0x00007f750d9721ea in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) (roles=..., count=65, index=<optimized out>, items=..., this=0x55dbfe9c8ae8) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/util/qqmladaptormodel_p.h:118
#10 0x00007f750d9721ea in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) (this=this@entry=0x55dbfe9c8420, index=index@entry=0, count=65, roles=...) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/types/qqmldelegatemodel.cpp:1144
#11 0x00007f750d976e02 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (this=0x55dbfe9c8420, parents=..., hint=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.5.1/src/qml/types/qqmldelegatemodel.cpp:1608
#12 0x00007f750d99989f in QQmlDelegateModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=_o@entry=0x55dbfe9c8420, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=14, _a=_a@entry=0x7ffd3b96a660) at .moc/moc_qqmldelegatemodel_p.cpp:205
#13 0x00007f750d99a058 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) (this=0x55dbfe9c8420, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7ffd3b96a660) at .moc/moc_qqmldelegatemodel_p.cpp:344
#14 0x00007f75097fa450 in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x55dbfe160140, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd3b96a660) at kernel/qobject.cpp:3728
#15 0x00007f75097faa97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x55dbfe160140, m=m@entry=0x7f7509c11600 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd3b96a660) at kernel/qobject.cpp:3578
#16 0x00007f7509876b96 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (this=this@entry=0x55dbfe160140, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:562
#17 0x00007f750979ae6e in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) (this=<optimized out>, source_top_left=..., source_bottom_right=..., roles=...) at itemmodels/qsortfilterproxymodel.cpp:1207
#18 0x00007f750979c958 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=_o@entry=0x55dbfe160140, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=5, _a=_a@entry=0x7ffd3b96a960) at .moc/moc_qsortfilterproxymodel.cpp:202
#19 0x00007f75097fa29a in QMetaObject::activate(QObject*, int, int, void**) (sender=0x55dbfeb19140, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd3b96a960) at kernel/qobject.cpp:3713
#20 0x00007f75097faa97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7f7509c11600 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd3b96a960) at kernel/qobject.cpp:3578
#21 0x00007f7509876aac in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:548
#22 0x00007f74492d81cd in NetworkModel::updateItem(NetworkModelItem*) () at /lib64/libplasmanm_internal.so
#23 0x00007f74492ddaa7 in NetworkModel::addActiveConnection(QSharedPointer<NetworkManager::ActiveConnection> const&) () at /lib64/libplasmanm_internal.so
#24 0x00007f74492ddfb3 in NetworkModel::activeConnectionAdded(QString const&) () at /lib64/libplasmanm_internal.so
#25 0x00007f75097fa127 in QMetaObject::activate(QObject*, int, int, void**) (a=0x7ffd3b96ac60, r=0x55dbfeb19140, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#26 0x00007f75097fa127 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7f7448fe5180, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#27 0x00007f7448d97d65 in NetworkManager::Notifier::activeConnectionAdded(QString const&) () at /lib64/libKF5NetworkManagerQt.so.6
#28 0x00007f7448d0add1 in NetworkManager::NetworkManagerPrivate::propertiesChanged(QMap<QString, QVariant> const&) () at /lib64/libKF5NetworkManagerQt.so.6
#29 0x00007f75097fa127 in QMetaObject::activate(QObject*, int, int, void**) (a=0x7ffd3b96af50, r=0x7f7448fe5180, this=<optimized out>) at ../../src/corelib/kernel/qobject_impl.h:124
#30 0x00007f75097fa127 in QMetaObject::activate(QObject*, int, int, void**) (sender=0x7f7448fe51a0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#31 0x00007f7448da2990 in OrgFreedesktopNetworkManagerInterface::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /lib64/libKF5NetworkManagerQt.so.6
#32 0x00007f7448da89b0 in OrgFreedesktopNetworkManagerInterface::qt_metacall(QMetaObject::Call, int, void**) () at /lib64/libKF5NetworkManagerQt.so.6
#33 0x00007f750a580ca3 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QVector<int> const&, int) (this=0x7f74d411eb20, object=0x7f7448fe51a0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:978
#34 0x00007f75097fb161 in QObject::event(QEvent*) (this=0x7f7448fe51a0, e=<optimized out>) at kernel/qobject.cpp:1239
#35 0x00007f750ad7f41c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x55dbfb7d3830, receiver=receiver@entry=0x7f7448fe51a0, e=e@entry=0x55dbff860c50) at kernel/qapplication.cpp:3716
#36 0x00007f750ad848e6 in QApplication::notify(QObject*, QEvent*) (this=0x7ffd3b96b810, receiver=0x7f7448fe51a0, e=0x55dbff860c50) at kernel/qapplication.cpp:3499
#37 0x00007f75097cb73b in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd3b96b810, receiver=0x7f7448fe51a0, event=event@entry=0x55dbff860c50) at kernel/qcoreapplication.cpp:965
#38 0x00007f75097cdb36 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x55dbff860c50, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#39 0x00007f75097cdb36 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55dbfb7c9550) at kernel/qcoreapplication.cpp:1593
#40 0x00007f75097ce018 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#41 0x00007f7509821aa3 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x55dbfb816a60) at kernel/qeventdispatcher_glib.cpp:271
#42 0x00007f7503f05e3a in g_main_context_dispatch (context=0x7f74ec0016f0) at gmain.c:3154
#43 0x00007f7503f05e3a in g_main_context_dispatch (context=context@entry=0x7f74ec0016f0) at gmain.c:3769
#44 0x00007f7503f061d0 in g_main_context_iterate (context=context@entry=0x7f74ec0016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#45 0x00007f7503f0627c in g_main_context_iteration (context=0x7f74ec0016f0, may_block=may_block@entry=1) at gmain.c:3901
#46 0x00007f7509821eaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55dbfb81de40, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007f75097c8eca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd3b96b6b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007f75097d0fac in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1229
#49 0x000055dbfac4708a in main(int, char**) (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.5.4/shell/main.cpp:181

Reported using DrKonqi