Bug 410026

SUMMARY
Kdeconnect crashes without being used an being in use

STEPS TO REPRODUCE
1. Start Kubuntu, after some time DrKonqi and/or Apport/woopsie will report the crash
2.Open kdeconnect
3. 

OBSERVED RESULT
DrKonqi reports the crash

EXPECTED RESULT
Working kdeconntect 

SOFTWARE/OS VERSIONS

Linux/KDE Plasma:5.0.0.20-generic/Kubuntu 19.04
KDE Plasma Version: 5.16.3
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION
DrKonqi's report, Common Tab
We are very sorry; the program kdeconnectd was terminated unexpectedly. You can not report this error because the kdeconnectd application does not provide an address for reporting errors.
Details:
Executable file:kdeconnectd PID: 15228 Signal: Segmentation fault (11) Date: 20.07.19 11:24:03

Developer information
Application: kdeconnectd (kdeconnectd), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd31361e800 (LWP 15228))]

Thread 4 (Thread 0x7fd30b7fe700 (LWP 15232)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:56
#1  0x00007fd31794d716 in __GI___poll (fds=0x7fd2fc004a30, nfds=1, timeout=10371) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fd3160b8bf6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd3160b8d1c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd317ecf063 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd317e7a5bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd317cc52c6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd317cc6612 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd3168d3182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fd317959b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd30bfff700 (LWP 15231)):
#0  0x00007fd3160b824c in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd3160b8b2b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd3160b8d1c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd317ecf063 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fd317e7a5bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd317cc52c6 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fd31720e565 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fd317cc6612 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fd3168d3182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007fd317959b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd31231b700 (LWP 15230)):
#0  0x00007fd31794d729 in __GI___poll (fds=0x7fd31231aca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd315d56917 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd315d5853a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd312f106a8 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fd317cc6612 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fd3168d3182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007fd317959b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd31361e800 (LWP 15228)):
[KCrash Handler]
#6  0x00007fd317d44f23 in operator==(QString const&, QString const&) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fd318dc27bc in KNotification::setTitle(QString const&) () from /lib/x86_64-linux-gnu/libKF5Notifications.so.5
#8  0x00007fd31008c009 in Notification::createKNotification (this=this@entry=0x55e91daa8320, update=<optimized out>, np=...) at ./plugins/notifications/notification.cpp:95
#9  0x00007fd31008cbad in Notification::update (this=this@entry=0x55e91daa8320, np=...) at ./plugins/notifications/notification.cpp:81
#10 0x00007fd310093a2d in NotificationsDbusInterface::processPacket (this=0x55e91da385b0, np=...) at ./plugins/notifications/notificationsdbusinterface.cpp:91
#11 0x00007fd31008f7ea in NotificationsPlugin::receivePacket (this=0x55e91d9e2450, np=...) at ./plugins/notifications/notificationsplugin.cpp:59
#12 0x00007fd318fa8488 in Device::privateReceivedPacket (this=<optimized out>, np=...) at ./core/device.cpp:341
#13 0x00007fd317ea5563 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fd318faf365 in DeviceLink::receivedPacket (this=this@entry=0x55e91d99bf30, _t1=...) at ./obj-x86_64-linux-gnu/core/kdeconnectcore_autogen/CSWKE6ESUK/moc_devicelink.cpp:209
#15 0x00007fd318f7e22e in LanDeviceLink::dataReceived (this=0x55e91d99bf30) at ./core/backends/lan/landevicelink.cpp:133
#16 0x00007fd317ea5563 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007fd318f85cc0 in SocketLineReader::dataReceived (this=0x55e91d994340) at ./core/backends/lan/socketlinereader.cpp:51
#18 0x00007fd317ea5563 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fd3177cb007 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#20 0x00007fd3177a83b1 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#21 0x00007fd317ea5426 in QMetaObject::activate(QObject*, int, int, void**) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007fd31776d733 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#23 0x00007fd31776d7c0 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#24 0x00007fd31777f7d1 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007fd318843551 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fd31884a930 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007fd317e7b8e9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007fd317ecfc85 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007fd3160b89ee in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fd3160b8c88 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fd3160b8d1c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fd317ecf047 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007fd317e7a5bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007fd317e825e2 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x000055e91d4973b4 in main (argc=<optimized out>, argv=<optimized out>) at ./daemon/kdeconnectd.cpp:99
[Inferior 1 (process 15228) detached]