Application: kdeconnectd (1.4.0)

Qt Version: 5.15.0
Frameworks Version: 5.75.0
Operating System: Linux 5.4.0-52-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.20

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

I Just make login to start my session and waint some seconds to the system render taskbar. After that o crash icon appear.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Connect Daemon (kdeconnectd), signal: Segmentation fault

[New LWP 1415]
[New LWP 1427]
[New LWP 1449]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007fd05b72baff in __GI___poll (fds=0x7ffd157bf268, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7fd0580d7800 (LWP 1401))]

Thread 4 (Thread 0x7fd04ffff700 (LWP 1449)):
#0  0x00007fd05a31e73b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd05a320185 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd05a32166b in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd05a3220db in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd05a3222e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd05bcf5eab in QEventDispatcherGlib::processEvents (this=0x7fd044000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fd05bc9a1bb in QEventLoop::exec (this=this@entry=0x7fd04fffeda0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007fd05bab8082 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007fd05bab920c in QThreadPrivate::start (arg=0x56422ab63df0) at thread/qthread_unix.cpp:342
#9  0x00007fd05ac84609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007fd05b738293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd0556c5700 (LWP 1427)):
#0  __GI___libc_read (nbytes=16, buf=0x7fd0556c4b60, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=7, buf=0x7fd0556c4b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fd05a36a89f in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd05a321cfe in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd05a322152 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd05a3222e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd05bcf5eab in QEventDispatcherGlib::processEvents (this=0x7fd048000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007fd05bc9a1bb in QEventLoop::exec (this=this@entry=0x7fd0556c4d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007fd05bab8082 in QThread::exec (this=this@entry=0x7fd05c025d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007fd05bfa2f2b in QDBusConnectionManager::run (this=0x7fd05c025d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#10 0x00007fd05bab920c in QThreadPrivate::start (arg=0x7fd05c025d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:342
#11 0x00007fd05ac84609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007fd05b738293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd057452700 (LWP 1415)):
#0  0x00007fd05b72baff in __GI___poll (fds=0x7fd057451ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd05a042c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd05a04490a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd057a4a978 in QXcbEventQueue::run (this=0x56422a9af0a0) at qxcbeventqueue.cpp:228
#4  0x00007fd05bab920c in QThreadPrivate::start (arg=0x56422a9af0a0) at thread/qthread_unix.cpp:342
#5  0x00007fd05ac84609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007fd05b738293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd0580d7800 (LWP 1401)):
[KCrash Handler]
#4  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x41) at /usr/include/c++/9/bits/atomic_base.h:413
#5  QAtomicOps<int>::loadRelaxed<int> (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:239
#6  QBasicAtomicInteger<int>::loadRelaxed (this=0x41) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:107
#7  QtPrivate::RefCount::ref (this=0x41) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:55
#8  QString::QString (other=..., this=0x7ffd157bfb80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:1089
#9  KNotification::title (this=this@entry=0x56422ace6fe0) at ./src/knotification.cpp:103
#10 0x00007fd05d0dbe7f in NotifyByPopupPrivate::sendNotificationToServer (this=0x56422ae439e0, notification=notification@entry=0x56422ace6fe0, notifyConfig_nocheck=..., update=update@entry=false) at ./src/notifybypopup.cpp:236
#11 0x00007fd05d0ddf8d in NotifyByPopup::notify (notifyConfig=..., notification=0x56422ace6fe0, this=0x56422adde630) at ./src/notifybypopup.cpp:125
#12 NotifyByPopup::notify (this=0x56422adde630, notification=0x56422ace6fe0, notifyConfig=...) at ./src/notifybypopup.cpp:110
#13 0x00007fd05d0de19a in NotifyByPopupPrivate::<lambda(QDBusPendingCallWatcher*)>::operator() (__closure=0x56422ae42ab0, watcher=<optimized out>) at ./src/notifybypopup.cpp:370
#14 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QDBusPendingCallWatcher*>, void, NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)> >::call (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:146
#15 QtPrivate::Functor<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1>::call<QtPrivate::List<QDBusPendingCallWatcher*>, void> (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:256
#16 QtPrivate::QFunctorSlotObject<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1, QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl (which=1, r=<optimized out>, ret=<optimized out>, a=<optimized out>, this_=0x56422ae42aa0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:443
#17 QtPrivate::QFunctorSlotObject<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1, QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x56422ae42aa0, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:436
#18 0x00007fd05bcd25ae in QtPrivate::QSlotObjectBase::call (a=0x7ffd157bfe20, r=0x56422adde630, this=0x56422ae42aa0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#19 doActivate<false> (sender=0x56422adde6b0, signal_index=3, argv=0x7ffd157bfe20) at kernel/qobject.cpp:3886
#20 0x00007fd05bccb977 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fd05c0245e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd157bfe20) at kernel/qobject.cpp:3946
#21 0x00007fd05c005fd3 in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:158
#22 0x00007fd05c0060d8 in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at qdbuspendingcall.cpp:494
#23 QDBusPendingCallWatcher::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:86
#24 0x00007fd05bcc9129 in QObject::event (this=0x56422adde6b0, e=0x7fd048023130) at kernel/qobject.cpp:1314
#25 0x00007fd05c871cc3 in QApplicationPrivate::notify_helper (this=this@entry=0x56422a9ace80, receiver=receiver@entry=0x56422adde6b0, e=e@entry=0x7fd048023130) at kernel/qapplication.cpp:3671
#26 0x00007fd05c87ac70 in QApplication::notify (this=0x7ffd157c04b0, receiver=0x56422adde6b0, e=0x7fd048023130) at kernel/qapplication.cpp:3417
#27 0x00007fd05bc9b6aa in QCoreApplication::notifyInternal2 (receiver=0x56422adde6b0, event=0x7fd048023130) at ../../include/QtCore/5.15.0/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#28 0x00007fd05bc9dfa1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x56422a9aba60) at kernel/qcoreapplication.cpp:1815
#29 0x00007fd05bcf6837 in postEventSourceDispatch (s=0x56422aad6ae0) at kernel/qeventdispatcher_glib.cpp:277
#30 0x00007fd05a321fbd in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fd05a322240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fd05a3222e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fd05bcf5e92 in QEventDispatcherGlib::processEvents (this=0x56422aad2b00, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#34 0x00007fd05bc9a1bb in QEventLoop::exec (this=this@entry=0x7ffd157c03f0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#35 0x00007fd05bca2354 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#36 0x0000564229491eb8 in main (argc=<optimized out>, argv=<optimized out>) at ./daemon/kdeconnectd.cpp:183
[Inferior 1 (process 1401) detached]

Possible duplicates by query: bug 427021, bug 425205, bug 422092, bug 420495, bug 417542.

Reported using DrKonqi