Bug 452783

Application: kcmshell5 (5.24.4)

Qt Version: 5.15.2
Frameworks Version: 5.92.0
Operating System: Linux 5.13.0-39-generic x86_64
Windowing System: X11
Distribution: Ubuntu 21.10
DrKonqi: 5.24.4 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
I stepped away from a moment and came back to a locked desktop. When I move my mouse I was greeted with a message saying that the screen locker had crashed and I had to unlock it via TTY2 by running "loginctl unlock-session 3." I did and when I switched back to Plasma, I get a notification that KWin had restarted due to a graphical issue. When I clicked on the notification to open the system settings application, the crash occurred.

- Unusual behavior I noticed:
Screenlocker crashed and I had to unlock via TTY2.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: System Settings Module (kcmshell5), signal: Aborted

[KCrash Handler]
#4  __pthread_kill_implementation (no_tid=0, signo=6, threadid=139995899181440) at pthread_kill.c:44
#5  __pthread_kill_internal (signo=6, threadid=139995899181440) at pthread_kill.c:80
#6  __GI___pthread_kill (threadid=139995899181440, signo=signo@entry=6) at pthread_kill.c:91
#7  0x00007f535a837476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#8  0x00007f535a81d7b7 in __GI_abort () at abort.c:79
#9  0x00007f535acc6ba3 in QMessageLogger::fatal(char const*, ...) const () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f535a7e9e95 in ?? () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#11 0x00007f535a7ea1ff in ?? () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#12 0x00007f535a7ec3e5 in QQuickWidget::resizeEvent(QResizeEvent*) () from /lib/x86_64-linux-gnu/libQt5QuickWidgets.so.5
#13 0x00007f535bbcdbfc in QWidget::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f535bb8a6b3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f535aeef16a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f535bbc5046 in QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f535bbc9a97 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f535bbccc73 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f535bbc9a19 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f535bbccc73 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f535bbc9a19 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f535bbc9a39 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f535bbccc73 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f535bbc9a19 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f535bbc9a39 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f535bbc9a39 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f535bbccc73 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f535bbc9a19 in QWidgetPrivate::showChildren(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007f535bbc9ab3 in QWidgetPrivate::show_helper() () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f535bbccc73 in QWidgetPrivate::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f535bd9af28 in QDialog::setVisible(bool) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x000055c2db4bc83f in ?? ()
#39 0x00007f535a81efd0 in __libc_start_call_main (main=main@entry=0x55c2db4bb310, argc=argc@entry=4, argv=argv@entry=0x7ffe374fa308) at ../sysdeps/nptl/libc_start_call_main.h:58
#40 0x00007f535a81f07d in __libc_start_main_impl (main=0x55c2db4bb310, argc=4, argv=0x7ffe374fa308, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe374fa2f8) at ../csu/libc-start.c:409
#41 0x000055c2db4be005 in ?? ()
[Inferior 1 (process 660120) detached]

Reported using DrKonqi