Application: plasmashell (5.11.4)

Qt Version: 5.10.0
Frameworks Version: 5.41.0
Operating System: Linux 4.14.5-1-hardened x86_64
Distribution: "Arch Linux"

-- Information about the crash:
Plasma crush when I turn off openvpn client through networkmanager-qt. Similar behavior occurs in 50% of cases

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x633060b86800 (LWP 1170))]

Thread 8 (Thread 0x632f76cac700 (LWP 1694)):
#0  0x000063305a063f2b in poll () at /usr/lib/libc.so.6
#1  0x0000633054928ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x000063305a9af6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000063305a76178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x0000632f7832c1aa in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x632fa3c13700 (LWP 1516)):
#0  0x000063305a9af5bf in  () at /usr/lib/libQt5Core.so.5
#1  0x0000633054928771 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x0000633054928df6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x000063305a9af6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000063305a76178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x000063305e527bcb in  () at /usr/lib/libQt5Quick.so.5
#8  0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#10 0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x63302f5a4700 (LWP 1435)):
#0  0x000063305992138d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x0000633060278f77 in  () at /usr/lib/libQt5Script.so.5
#2  0x0000633060278fb9 in  () at /usr/lib/libQt5Script.so.5
#3  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#4  0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x633039703700 (LWP 1332)):
#0  0x0000633054928690 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#1  0x0000633054928df6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x000063305a9af6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000063305a76178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x000063305d96ba19 in  () at /usr/lib/libQt5Qml.so.5
#7  0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x63303b9d0700 (LWP 1243)):
#0  0x000063305a07b622 in __libc_disable_asynccancel () at /usr/lib/libc.so.6
#1  0x000063305a063f3f in poll () at /usr/lib/libc.so.6
#2  0x0000633054928ed3 in  () at /usr/lib/libglib-2.0.so.0
#3  0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x000063305a9af6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x000063305a76178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x000063305d96ba19 in  () at /usr/lib/libQt5Qml.so.5
#8  0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#10 0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x63304145e700 (LWP 1206)):
#0  0x0000633060c11969 in  ()
#1  0x0000633060c11c20 in clock_gettime ()
#2  0x000063305a07bcd6 in clock_gettime () at /usr/lib/libc.so.6
#3  0x000063305a9aefa2 in  () at /usr/lib/libQt5Core.so.5
#4  0x000063305a9ad73a in QTimerInfoList::updateCurrentTime() () at /usr/lib/libQt5Core.so.5
#5  0x000063305a9add16 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/libQt5Core.so.5
#6  0x000063305a9af3ff in  () at /usr/lib/libQt5Core.so.5
#7  0x0000633054928771 in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#8  0x0000633054928df6 in  () at /usr/lib/libglib-2.0.so.0
#9  0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#10 0x000063305a9af6b4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#11 0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#12 0x000063305a76178e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#13 0x000063305add1416 in  () at /usr/lib/libQt5DBus.so.5
#14 0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#15 0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#16 0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x633043834700 (LWP 1180)):
#0  0x000063305a063f2b in poll () at /usr/lib/libc.so.6
#1  0x000063305f1768e0 in  () at /usr/lib/libxcb.so.1
#2  0x000063305f178679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x0000633045fbf7aa in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x000063305a766b2d in  () at /usr/lib/libQt5Core.so.5
#5  0x000063305991b08a in start_thread () at /usr/lib/libpthread.so.0
#6  0x000063305a06e42f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x633060b86800 (LWP 1170)):
[KCrash Handler]
#5  0x0000632f74abce70 in NetworkManager::Device::ipInterfaceName() const () at /usr/lib/libKF5NetworkManagerQt.so.6
#6  0x0000632f7a68c001 in NetworkModel::addAvailableConnection(QString const&, QSharedPointer<NetworkManager::Device> const&) () at /usr/lib/libplasmanm_internal.so
#7  0x0000632f7a68ca77 in NetworkModel::availableConnectionAppeared(QString const&) () at /usr/lib/libplasmanm_internal.so
#8  0x000063305a983b2f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#9  0x0000632f74b985e6 in NetworkManager::Device::availableConnectionAppeared(QString const&) () at /usr/lib/libKF5NetworkManagerQt.so.6
#10 0x0000632f74abf69a in  () at /usr/lib/libKF5NetworkManagerQt.so.6
#11 0x0000632f74b193bb in  () at /usr/lib/libKF5NetworkManagerQt.so.6
#12 0x0000632f74abd832 in  () at /usr/lib/libKF5NetworkManagerQt.so.6
#13 0x0000632f74ba9459 in  () at /usr/lib/libKF5NetworkManagerQt.so.6
#14 0x000063305addcb5d in  () at /usr/lib/libQt5DBus.so.5
#15 0x000063305a984452 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#16 0x000063305b957e3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#17 0x000063305b95f816 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#18 0x000063305a9531e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#19 0x000063305a955e46 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#20 0x000063305a9b00a4 in  () at /usr/lib/libQt5Core.so.5
#21 0x0000633054927270 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#22 0x0000633054928f69 in  () at /usr/lib/libglib-2.0.so.0
#23 0x0000633054928fae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#24 0x000063305a9af691 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#25 0x0000633046047152 in  () at /usr/lib/libQt5XcbQpa.so.5
#26 0x000063305a95182b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#27 0x000063305a95ab18 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#28 0x000008719df4f8a3 in  ()
#29 0x0000633059f98f4a in __libc_start_main () at /usr/lib/libc.so.6
#30 0x000008719df4fc5a in _start ()

Reported using DrKonqi