Bug 377078

Summary:	Plasma crash when clicking on duplicated app menu buttons
Product:	[Frameworks and Libraries] kded-appmenu	Reporter:	avlas <jsardid>
Component:	menu exporter	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	contacha, j.filzmaier, kde
Priority:	NOR
Version First Reported In:	5.9.3
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description avlas 2017-03-01 21:21:53 UTC

This seem to happen (at least) in Kontact: e.g. when I move (internally within Kontact) from akregator to contacts then App Menu fails to remove the old set of buttons (from akregator) and simply add the new ones (from contact). Then, if I try to click on one of the old buttons, plasma crashes.

Comment 1 Filzmaier Josef 2017-03-02 00:22:59 UTC

I can confirm this behaviour on Arch Linux.

Comment 2 Kai Uwe Broulik 2017-03-02 09:54:16 UTC

Can you provide a backtrace, please.

Comment 3 Filzmaier Josef 2017-03-02 10:15:38 UTC

It seemed harder to get it to crash when plasmashell was outputting debug information on the terminal but i got it to crash :)

The output of Plasmashell looks like this:
https://paste.kde.org/psjdwtfw2

And the crash report from Dr. konqi looks like this:
https://paste.kde.org/pqghie4vv

I have made a video on how to reproduce:
https://youtu.be/Xo2hPO8SjXg

Comment 4 Kai Uwe Broulik 2017-03-02 10:27:59 UTC

Thanks for the video. I'll try with Kontact, then. Your backtrace unfortunately lacks debug symbols but I think when I install Kontact I should be able to reproduce it myself :)

Comment 5 Kai Uwe Broulik 2017-03-02 10:29:02 UTC

I can reproduce.

Thread 1 (Thread 0x7f50fa70b8c0 (LWP 15513)):
[KCrash Handler]
#6  0x00007f50f618c060 in QAction::menu() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007f4ffe1127d1 in AppMenuApplet::createMenu(int) const () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_appmenu.so
#8  0x00007f4ffe112886 in AppMenuApplet::trigger(QQuickItem*, int) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_appmenu.so
#9  0x00007f4ffe1146e4 in AppMenuApplet::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/applets/plasma_applet_appmenu.so