[systemsettings] [Bug 323027] systemsettings crashed while browsing the module tree

[Mariusz Plucinski]

https://bugs.kde.org/show_bug.cgi?id=323027

--- Comment #2 from Mariusz Plucinski <plucinski.mariusz at gmail.com> ---
Created attachment 83369
  --> https://bugs.kde.org/attachment.cgi?id=83369&action=edit
New crash information added by DrKonqi

systemsettings (4.11.2) on KDE Platform 4.11.2 using Qt 4.8.5

I found a way to reproduce the bug every time. Steps:

1. Run systemsettings
2. Make sure you are in "Classic Tree View" (Configuration->General)
3. Open "System Administration" tree node
4. Double-click on "Login Screen" leaf node

The double-click seems essential to reproduce issue, but it sometimes does not
happen when other system settings pages were opened. It always happens if I try
double-click directly after opening system settings.

-- Backtrace (Reduced):
#6  0x00000039838cd1c1 in KCModule::setNeedsAuthorization
(this=this at entry=0x5f99b60, needsAuth=needsAuth at entry=true) at
/usr/src/debug/kdelibs-4.11.2/kdeui/widgets/kcmodule.cpp:150
#7  0x00007f6bd7de21ad in KDModule::KDModule (this=0x5f99b60, parent=<optimized
out>) at /usr/src/debug/kde-workspace-4.11.2/kdm/kcm/main.cpp:276
#8  0x00007f6bd7de362b in KPluginFactory::createInstance<KDModule, QWidget>
(parentWidget=<optimized out>, parent=<optimized out>, args=...) at
/usr/include/kde4/kpluginfactory.h:477
#9  0x0000003982e0e393 in KPluginFactory::create (this=0x25c8e30,
iface=0x39839a8320 <qt_meta_stringdata_KCModule> "KCModule", parentWidget=0x0,
parent=0x41430e0, args=..., keyword=...) at
/usr/src/debug/kdelibs-4.11.2/kdecore/util/kpluginfactory.cpp:203
#10 0x000000398681b87e in create<KCModule> (args=..., keyword=...,
parent=0x41430e0, parentWidget=0x0, this=0x25c8e30) at
/usr/src/debug/kdelibs-4.11.2/kdecore/util/kpluginfactory.h:531

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