Bug 453780

Summary: Plasma crashes when I use Application menu-> logout and it won't
Product: [Frameworks and Libraries] frameworks-kconfig Reporter: knakajima
Component: generalAssignee: Matthew Dawson <matthew>
Status: RESOLVED WORKSFORME    
Severity: crash CC: kde, kdelibs-bugs-null, nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.92.0   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description knakajima 2022-05-14 13:22:41 UTC 
Application: plasmashell (5.24.4)
 (Compiled from sources)
Qt Version: 5.15.3
Frameworks Version: 5.92.0
Operating System: Linux 5.17.6-gentoo-x86_64 x86_64
Windowing System: X11
Distribution: "Gentoo Base System release 2.7"
DrKonqi: 5.24.4 [KCrashBackend]

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

logging out using gui

- Custom settings of the application:
All default with desktop 17.1 profile. 510.68 nvidia-drivers gforce rtx370ti mobile with alder lake i9-12900H
Changed wallpaper to Aritim-Dark_V5-1920x1280
force fullpipe composition on nvidia-drivers setting
theme changed to Breeze Dark. Found incorrectly selection and selected breeze dark in Appearance -> Plasma Style
changed font to 96 dpi because nvidia calculate it to 104 or something similar
sddm login screen got HUGE fonts
insde plasma looks normal scaled
launch feedpack off
splash screen was not selected so I selected Breeze

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f006dab3ae6 in KConfigBase::group(char const*) () at /usr/lib64/libKF5ConfigCore.so.5
#5  0x00007f006f205f8a in SessionBackend::confirmLogout() const () at /usr/lib64/libkworkspace5.so.5
#6  0x00007f006f202f05 in SessionManagement::requestLogout(SessionManagement::ConfirmationMode) () at /usr/lib64/libkworkspace5.so.5
#7  0x00007f0050dbcf21 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#8  0x00007f0050dbd1fb in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#9  0x00007f0050d7a93c in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#10 0x00007f0050d7f3f3 in  () at /usr/lib64/qt5/qml/org/kde/plasma/private/kicker/libkickerplugin.so
#11 0x00007f006e6701fd in  () at /usr/lib64/libQt5Qml.so.5
#12 0x00007f006e550080 in  () at /usr/lib64/libQt5Qml.so.5
#13 0x00007f006e551ecb in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/lib64/libQt5Qml.so.5
#14 0x00007f006e56e061 in  () at /usr/lib64/libQt5Qml.so.5
#15 0x00007f006e570e4f in  () at /usr/lib64/libQt5Qml.so.5
#16 0x00007f006e505dbe in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/lib64/libQt5Qml.so.5
#17 0x00007f006e68a7d5 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib64/libQt5Qml.so.5
#18 0x00007f006e63c251 in QQmlBoundSignalExpression::evaluate(void**) () at /usr/lib64/libQt5Qml.so.5
#19 0x00007f006e63d420 in  () at /usr/lib64/libQt5Qml.so.5
#20 0x00007f006e66fcb5 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib64/libQt5Qml.so.5
#21 0x00007f006d205419 in  () at /usr/lib64/libQt5Core.so.5
#22 0x00007f006d2055fe in  () at /usr/lib64/libQt5Core.so.5
#23 0x00007f006de41d92 in QAction::triggered(bool) () at /usr/lib64/libQt5Widgets.so.5
#24 0x00007f006de449b4 in QAction::activate(QAction::ActionEvent) () at /usr/lib64/libQt5Widgets.so.5
#25 0x00007f006dfc7f72 in  () at /usr/lib64/libQt5Widgets.so.5
#26 0x00007f006dfcfa5f in  () at /usr/lib64/libQt5Widgets.so.5
#27 0x00007f006de8a018 in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#28 0x00007f006de4863f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#29 0x00007f006de5010a in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#30 0x00007f006d1d3098 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#31 0x00007f006de4ec26 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /usr/lib64/libQt5Widgets.so.5
#32 0x00007f006dea389c in  () at /usr/lib64/libQt5Widgets.so.5
#33 0x00007f006dea5f05 in  () at /usr/lib64/libQt5Widgets.so.5
#34 0x00007f006de4863f in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#35 0x00007f006d1d3098 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#36 0x00007f006d5cfb7d in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib64/libQt5Gui.so.5
#37 0x00007f006d5b077b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Gui.so.5
#38 0x00007f0068c43d5a in  () at /usr/lib64/libQt5XcbQpa.so.5
#39 0x00007f006b7e9b3b in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#40 0x00007f006b7e9de8 in  () at /usr/lib64/libglib-2.0.so.0
#41 0x00007f006b7e9e9f in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#42 0x00007f006d223126 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#43 0x00007f006d1d1b23 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#44 0x00007f006d1d9e40 in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#45 0x00005609f0a213bc in  ()
#46 0x00007f006cb7931c in  () at /lib64/libc.so.6
#47 0x00007f006cb793cc in __libc_start_main () at /lib64/libc.so.6
#48 0x00005609f0a215c1 in  ()
[Inferior 1 (process 5417) detached]

Reported using DrKonqi
Comment 1 Nate Graham 2022-05-16 16:57:57 UTC 
Crashing in KConfig:

> #4  0x00007f006dab3ae6 in KConfigBase::group(char const*) () at /usr/lib64/libKF5ConfigCore.so.5
> #5  0x00007f006f205f8a in SessionBackend::confirmLogout() const () at /usr/lib64/libkworkspace5.so.5
> #6  0x00007f006f202f05 in SessionManagement::requestLogout(SessionManagement::ConfirmationMode) () at /usr/lib64/libkworkspace5.so.5

I seem to recall some changes here regarding group property access; moving to KConfig.

Would be interesting to know if it still happens in Frameworks 5.94 as I see at least one related commit. Can you try that?
Comment 2 Bug Janitor Service 2022-05-31 04:35:48 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Bug Janitor Service 2022-06-15 04:35:24 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!