Bug 417276

Application: systemsettings5 (5.18.80)

Qt Version: 5.13.2
Frameworks Version: 5.67.0
Operating System: Linux 5.3.0-28-generic x86_64
Windowing system: X11
Distribution: KDE neon Unstable Edition

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

Open settings, choose "default applications", set opera, chrome and firefox. KDE crashes in any case, but all the same change default app

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7ff83db800 (LWP 15975))]

Thread 6 (Thread 0x7f7fc201c700 (LWP 15981)):
#0  0x00007f7ff3921bf9 in __GI___poll (fds=0x7f7fbc003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7fecfcf5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7fecfcf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff4274acb in QEventDispatcherGlib::processEvents (this=0x7f7fbc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7ff4214f9a in QEventLoop::exec (this=this@entry=0x7f7fc201bd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f7ff40303aa in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f7ff1bb4815 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ff4031b52 in QThreadPrivate::start (arg=0x55d906284790) at thread/qthread_unix.cpp:360
#8  0x00007f7fef38e6db in start_thread (arg=0x7f7fc201c700) at pthread_create.c:463
#9  0x00007f7ff392e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7fcaa84700 (LWP 15980)):
#0  0x00007f7ff3921bf9 in __GI___poll (fds=0x7f7fc4004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7fecfcf5c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7fecfcf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff4274acb in QEventDispatcherGlib::processEvents (this=0x7f7fc4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7ff4214f9a in QEventLoop::exec (this=this@entry=0x7f7fcaa83d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f7ff40303aa in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f7ff1bb4815 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f7ff4031b52 in QThreadPrivate::start (arg=0x55d906017330) at thread/qthread_unix.cpp:360
#8  0x00007f7fef38e6db in start_thread (arg=0x7f7fcaa84700) at pthread_create.c:463
#9  0x00007f7ff392e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7fd4559700 (LWP 15978)):
#0  0x00007f7fef3949f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d905dc7e1c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55d905dc7dc8, cond=0x55d905dc7df0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55d905dc7df0, mutex=0x55d905dc7dc8) at pthread_cond_wait.c:655
#3  0x00007f7fd5bf6ebb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f7fd5bf6ab7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f7fef38e6db in start_thread (arg=0x7f7fd4559700) at pthread_create.c:463
#6  0x00007f7ff392e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7fdd1b6700 (LWP 15977)):
#0  0x00007f7fecfceb3a in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7fecfcf4fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7fecfcf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7ff4274acb in QEventDispatcherGlib::processEvents (this=0x7f7fd8000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7ff4214f9a in QEventLoop::exec (this=this@entry=0x7f7fdd1b5d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007f7ff40303aa in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007f7ff46eb0e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f7ff4031b52 in QThreadPrivate::start (arg=0x7f7ff4962d80) at thread/qthread_unix.cpp:360
#8  0x00007f7fef38e6db in start_thread (arg=0x7f7fdd1b6700) at pthread_create.c:463
#9  0x00007f7ff392e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7fe52b2700 (LWP 15976)):
#0  0x00007f7ff3921bf9 in __GI___poll (fds=0x7f7fe52b1ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7feef52747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f7feef5436a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7fe8097e10 in QXcbEventQueue::run (this=0x55d905c1e810) at qxcbeventqueue.cpp:228
#4  0x00007f7ff4031b52 in QThreadPrivate::start (arg=0x55d905c1e810) at thread/qthread_unix.cpp:360
#5  0x00007f7fef38e6db in start_thread (arg=0x7f7fe52b2700) at pthread_create.c:463
#6  0x00007f7ff392e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7ff83db800 (LWP 15975)):
[KCrash Handler]
#6  KService::storageId (this=0x0) at ./src/services/kservice.cpp:809
#7  0x00007f7fbb9f5756 in CfgEmailClient::save (this=0x55d908f67670) at ./kcms/componentchooser/componentchooseremail.cpp:149
#8  0x00007f7fbb9edce6 in ComponentChooser::save (this=0x55d908f3c350) at ./kcms/componentchooser/componentchooser.cpp:144
#9  0x00007f7ff7dc4797 in KCModuleProxy::save (this=<optimized out>) at ./src/kcmoduleproxy.cpp:239
#10 0x00007f7ff7ffeb71 in ModuleView::moduleSave (this=<optimized out>, module=<optimized out>) at ./core/ModuleView.cpp:297
#11 0x00007f7ff7ffee8a in ModuleView::moduleSave (this=<optimized out>) at ./core/ModuleView.cpp:288
#12 0x00007f7ff8002351 in ModuleView::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0x7ffdf4815c10, _c=<optimized out>) at ./obj-x86_64-linux-gnu/core/systemsettingsview_autogen/EWIEGA46WW/moc_ModuleView.cpp:122
#13 0x00007f7ff4247805 in QMetaObject::activate (sender=sender@entry=0x55d905ff6000, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=<optimized out>, argv@entry=0x7ffdf4815c10) at kernel/qobject.cpp:3809
#14 0x00007f7ff4247ec7 in QMetaObject::activate (sender=sender@entry=0x55d905ff6000, m=m@entry=0x7f7ff598a760 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffdf4815c10) at kernel/qobject.cpp:3660
#15 0x00007f7ff53954c2 in QAbstractButton::clicked (this=this@entry=0x55d905ff6000, _t1=<optimized out>) at .moc/moc_qabstractbutton.cpp:313
#16 0x00007f7ff53956da in QAbstractButtonPrivate::emitClicked (this=0x55d905ff6040) at widgets/qabstractbutton.cpp:414
#17 0x00007f7ff5396aba in QAbstractButtonPrivate::click (this=0x55d905ff6040) at widgets/qabstractbutton.cpp:407
#18 0x00007f7ff5396cad in QAbstractButton::mouseReleaseEvent (this=0x55d905ff6000, e=0x7ffdf4816180) at widgets/qabstractbutton.cpp:1011
#19 0x00007f7ff52ebcb8 in QWidget::event (this=0x55d905ff6000, event=0x7ffdf4816180) at kernel/qwidget.cpp:9339
#20 0x00007f7ff52aaeac in QApplicationPrivate::notify_helper (this=this@entry=0x55d905bfe340, receiver=receiver@entry=0x55d905ff6000, e=e@entry=0x7ffdf4816180) at kernel/qapplication.cpp:3703
#21 0x00007f7ff52b3388 in QApplication::notify (this=<optimized out>, receiver=0x55d905ff6000, e=0x7ffdf4816180) at kernel/qapplication.cpp:3163
#22 0x00007f7ff4216e38 in QCoreApplication::notifyInternal2 (receiver=0x55d905ff6000, event=0x7ffdf4816180) at kernel/qcoreapplication.cpp:1095
#23 0x00007f7ff421701e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55d905ff6000, event=event@entry=0x7ffdf4816180) at kernel/qcoreapplication.cpp:1502
#24 0x00007f7ff52b197f in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55d905ff6000, event=event@entry=0x7ffdf4816180, alienWidget=0x55d905ff6000, nativeWidget=0x55d905cb8ee0, buttonDown=buttonDown@entry=0x7f7ff59b48b0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2649
#25 0x00007f7ff53066b1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55d905d56150, event=event@entry=0x7ffdf4816610) at kernel/qwidgetwindow.cpp:662
#26 0x00007f7ff530964a in QWidgetWindow::event (this=0x55d905d56150, event=0x7ffdf4816610) at kernel/qwidgetwindow.cpp:281
#27 0x00007f7ff52aaeac in QApplicationPrivate::notify_helper (this=this@entry=0x55d905bfe340, receiver=receiver@entry=0x55d905d56150, e=e@entry=0x7ffdf4816610) at kernel/qapplication.cpp:3703
#28 0x00007f7ff52b24b0 in QApplication::notify (this=0x7ffdf4816ab0, receiver=0x55d905d56150, e=0x7ffdf4816610) at kernel/qapplication.cpp:3449
#29 0x00007f7ff4216e38 in QCoreApplication::notifyInternal2 (receiver=0x55d905d56150, event=0x7ffdf4816610) at kernel/qcoreapplication.cpp:1095
#30 0x00007f7ff421701e in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55d905d56150, event=event@entry=0x7ffdf4816610) at kernel/qcoreapplication.cpp:1502
#31 0x00007f7ff4a79495 in QGuiApplicationPrivate::processMouseEvent (e=0x55d90a87b8a0) at kernel/qguiapplication.cpp:2111
#32 0x00007f7ff4a7a5e5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55d90a87b8a0) at kernel/qguiapplication.cpp:1846
#33 0x00007f7ff4a5479b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1148
#34 0x00007f7fe8098dda in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#35 0x00007f7fecfcf417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f7fecfcf650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f7fecfcf6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f7ff4274aaf in QEventDispatcherGlib::processEvents (this=0x55d905c69cd0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#39 0x00007f7ff4214f9a in QEventLoop::exec (this=this@entry=0x7ffdf48169b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#40 0x00007f7ff421e310 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1403
#41 0x000055d90576466b in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:100

Possible duplicates by query: bug 73402.

Reported using DrKonqi