Bug 433390

Application: kdeconnectd (1.4.0)

Qt Version: 5.15.2
Frameworks Version: 5.77.0
Operating System: Linux 5.10.1-gentoo-r1 x86_64
Windowing system: X11
Distribution: Gentoo/Linux

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

I had logged in and were waiting for all daemons and helper programs to finish starting.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Connect-Dienst (kdeconnectd), signal: Segmentation fault
Content of s_kcrashErrorMessage: (null)
[KCrash Handler]
#6  0x00007f1cd75f702a in std::__atomic_base<QtSharedPointer::ExternalRefCountData*>::load (__m=std::memory_order_relaxed, this=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/include/g++-v9/bits/atomic_base.h:740
#7  std::atomic<QtSharedPointer::ExternalRefCountData*>::load (__m=std::memory_order_relaxed, this=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/include/g++-v9/atomic:519
#8  QAtomicOps<QtSharedPointer::ExternalRefCountData*>::loadRelaxed<QtSharedPointer::ExternalRefCountData*> (_q_value=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:239
#9  QBasicAtomicPointer<QtSharedPointer::ExternalRefCountData>::loadRelaxed (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/thread/qbasicatomic.h:248
#10 QtSharedPointer::ExternalRefCountData::getAndRef (obj=obj@entry=0x557ec6eacde0) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/tools/qsharedpointer.cpp:1396
#11 0x00007f1cd8a53ebe in QWeakPointer<QObject>::QWeakPointer<KNotification, true> (ptr=0x557ec6eacde0, this=0x7ffe99dfc3a0) at /usr/include/qt5/QtCore/qsharedpointer_impl.h:679
#12 QPointer<KNotification>::QPointer (p=0x557ec6eacde0, this=0x7ffe99dfc3a0) at /usr/include/qt5/QtCore/qpointer.h:62
#13 NotifyByPopupPrivate::sendNotificationToServer (this=0x557ec7040880, notification=notification@entry=0x557ec6eacde0, notifyConfig_nocheck=..., update=update@entry=false) at /var/tmp/portage/kde-frameworks/knotifications-5.77.0/work/knotifications-5.77.0/src/notifybypopup.cpp:224
#14 0x00007f1cd8a55e0d in NotifyByPopup::notify (notifyConfig=..., notification=0x557ec6eacde0, this=0x557ec703f180) at /var/tmp/portage/kde-frameworks/knotifications-5.77.0/work/knotifications-5.77.0/src/notifybypopup.cpp:125
#15 NotifyByPopup::notify (this=0x557ec703f180, notification=0x557ec6eacde0, notifyConfig=...) at /var/tmp/portage/kde-frameworks/knotifications-5.77.0/work/knotifications-5.77.0/src/notifybypopup.cpp:110
#16 0x00007f1cd8a5601a in NotifyByPopupPrivate::<lambda(QDBusPendingCallWatcher*)>::operator() (__closure=0x557ec7041550, watcher=<optimized out>) at /var/tmp/portage/kde-frameworks/knotifications-5.77.0/work/knotifications-5.77.0/src/notifybypopup.cpp:373
#17 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QDBusPendingCallWatcher*>, void, NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)> >::call (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:146
#18 QtPrivate::Functor<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1>::call<QtPrivate::List<QDBusPendingCallWatcher*>, void> (arg=<optimized out>, f=...) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:256
#19 QtPrivate::QFunctorSlotObject<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1, QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl (which=1, r=<optimized out>, ret=<optimized out>, a=<optimized out>, this_=0x557ec7041540) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:443
#20 QtPrivate::QFunctorSlotObject<NotifyByPopupPrivate::queryPopupServerCapabilities()::<lambda(QDBusPendingCallWatcher*)>, 1, QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x557ec7041540, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt5/QtCore/qobjectdefs_impl.h:436
#21 0x00007f1cd779c071 in QtPrivate::QSlotObjectBase::call (a=0x7ffe99dfc640, r=0x557ec703f180, this=0x557ec7041540) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#22 doActivate<false> (sender=0x557ec703da90, signal_index=3, argv=0x7ffe99dfc640) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:3886
#23 0x00007f1cd779621f in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f1cd7adf5e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe99dfc640) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:3946
#24 0x00007f1cd7ac111f in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:158
#25 0x00007f1cd7ac1220 in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at /var/tmp/portage/dev-qt/qtdbus-5.15.2/work/qtbase-everywhere-src-5.15.2/src/dbus/qdbuspendingcall.cpp:494
#26 QDBusPendingCallWatcher::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:86
#27 0x00007f1cd7793ffc in QObject::event (this=0x557ec703da90, e=0x557ec6fa9530) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qobject.cpp:1314
#28 0x00007f1cd81fcd3f in QApplicationPrivate::notify_helper (this=this@entry=0x557ec6c64bb0, receiver=receiver@entry=0x557ec703da90, e=e@entry=0x557ec6fa9530) at /var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:3632
#29 0x00007f1cd8205950 in QApplication::notify (this=0x7ffe99dfccb0, receiver=0x557ec703da90, e=0x557ec6fa9530) at /var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:3156
#30 0x00007f1cd7768817 in QCoreApplication::notifyInternal2 (receiver=0x557ec703da90, event=0x557ec6fa9530) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1063
#31 0x00007f1cd776b340 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x557ec6c634d0) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qcoreapplication.cpp:1817
#32 0x00007f1cd77bde73 in postEventSourceDispatch (s=0x557ec6ccb210) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:277
#33 0x00007f1cd5b1217c in g_main_dispatch (context=0x7f1ccc005000) at ../glib-2.64.5/glib/gmain.c:3309
#34 g_main_context_dispatch (context=context@entry=0x7f1ccc005000) at ../glib-2.64.5/glib/gmain.c:3974
#35 0x00007f1cd5b123f8 in g_main_context_iterate (context=context@entry=0x7f1ccc005000, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib-2.64.5/glib/gmain.c:4047
#36 0x00007f1cd5b1248f in g_main_context_iteration (context=0x7f1ccc005000, may_block=may_block@entry=1) at ../glib-2.64.5/glib/gmain.c:4108
#37 0x00007f1cd77bdc20 in QEventDispatcherGlib::processEvents (this=0x557ec6cd2300, flags=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/src/corelib/kernel/qeventdispatcher_glib.cpp:423
#38 0x00007f1cd7767663 in QEventLoop::exec (this=this@entry=0x7ffe99dfcbf0, flags=..., flags@entry=...) at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:69
#39 0x00007f1cd776f5a0 in QCoreApplication::exec () at /var/tmp/portage/dev-qt/qtcore-5.15.2-r2/work/qtbase-everywhere-src-5.15.2/include/QtCore/../../src/corelib/global/qflags.h:121
#40 0x00007f1cd7bf8adc in QGuiApplication::exec () at /var/tmp/portage/dev-qt/qtgui-5.15.2-r1/work/qtbase-everywhere-src-5.15.2/src/gui/kernel/qguiapplication.cpp:1867
#41 0x00007f1cd81fccb5 in QApplication::exec () at /var/tmp/portage/dev-qt/qtwidgets-5.15.2/work/qtbase-everywhere-src-5.15.2/src/widgets/kernel/qapplication.cpp:2824
#42 0x0000557ec5ab19b7 in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-misc/kdeconnect-20.08.3/work/kdeconnect-kde-20.08.3/daemon/kdeconnectd.cpp:183
[Inferior 1 (process 1080) detached]

Possible duplicates by query: bug 426110, bug 425231, bug 398918.

Reported using DrKonqi