[Bug 277055] New: kded crash on startup in polkit

[Bernhard Rosenkraenzer]

https://bugs.kde.org/show_bug.cgi?id=277055

           Summary: kded crash on startup in polkit
           Product: kde
           Version: 4.7
          Platform: Compiled Sources
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: bero at arklinux.org


Version:           4.7 (using Devel) 
OS:                Linux

After updating from 4.6.3 to 4.7-rc1, kded crashes on startup when talking to
polkit:

Application: KDE Daemon (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0x00007fe5d1ebb1b0 in QVariant::userType() const () from
/usr/lib64/libQtCore.so.4
#7  0x00007fe5b8c00bf7 in PolkitQt1::Authority::Private::init() () from
/usr/lib64/libpolkit-qt-core-1.so.1
#8  0x00007fe5b8c01e0e in PolkitQt1::Authority::Authority(_PolkitAuthority*,
QObject*) () from /usr/lib64/libpolkit-qt-core-1.so.1
#9  0x00007fe5b8c01ed2 in PolkitQt1::Authority::instance(_PolkitAuthority*) ()
from /usr/lib64/libpolkit-qt-core-1.so.1
#10 0x00007fe5b8e114ab in ?? () from
/usr/lib64/kde4/plugins/kauth/backend/kauth_backend_plugin.so
#11 0x00007fe5b8e1213d in qt_plugin_instance () from
/usr/lib64/kde4/plugins/kauth/backend/kauth_backend_plugin.so
#12 0x00007fe5d1e7de6f in QPluginLoader::instance() () from
/usr/lib64/libQtCore.so.4
#13 0x00007fe5d25d9c63 in KAuth::BackendsManager::retrieveInstancesIn(QString
const&) () from /usr/lib64/libkdecore.so.5
#14 0x00007fe5d25d9e61 in KAuth::BackendsManager::init() () from
/usr/lib64/libkdecore.so.5
#15 0x00007fe5d25da52d in KAuth::BackendsManager::authBackend() () from
/usr/lib64/libkdecore.so.5
#16 0x00007fe5d25d6d39 in KAuth::Action::setName(QString const&) () from
/usr/lib64/libkdecore.so.5
#17 0x00007fe5d25d6e5a in KAuth::Action::Action(QString const&) () from
/usr/lib64/libkdecore.so.5
#18 0x00007fe5ba11ae36 in
PowerDevilUPowerBackend::brightness(PowerDevil::BackendInterface::BrightnessControlType)
const () from /usr/lib64/kde4/kded_powerdevil.so
#19 0x00007fe5ba11d3f0 in PowerDevilUPowerBackend::init() () from
/usr/lib64/kde4/kded_powerdevil.so
#20 0x00007fe5b9ee9f42 in
PowerDevil::Core::loadCore(PowerDevil::BackendInterface*) () from
/usr/lib64/libpowerdevilcore.so.0
#21 0x00007fe5ba116424 in ?? () from /usr/lib64/kde4/kded_powerdevil.so
#22 0x00007fe5d1eb3121 in QObject::event(QEvent*) () from
/usr/lib64/libQtCore.so.4
#23 0x00007fe5d101f566 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQtGui.so.4
#24 0x00007fe5d10244a9 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQtGui.so.4
#25 0x00007fe5d2eb6416 in KApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libkdeui.so.5
#26 0x00007fe5d1e99bdc in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib64/libQtCore.so.4
#27 0x00007fe5d1e9cf9d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#28 0x00007fe5d1ec87e3 in ?? () from /usr/lib64/libQtCore.so.4
#29 0x00007fe5cca47fc2 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#30 0x00007fe5cca48628 in ?? () from /usr/lib64/libglib-2.0.so.0
#31 0x00007fe5cca488a9 in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#32 0x00007fe5d1ec8c0f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#33 0x00007fe5d10c3830 in ?? () from /usr/lib64/libQtGui.so.4
#34 0x00007fe5d1e98982 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#35 0x00007fe5d1e98bda in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#36 0x00007fe5d1e9d297 in QCoreApplication::exec() () from
/usr/lib64/libQtCore.so.4
#37 0x00007fe5bed0af47 in kdemain () from /usr/lib64/libkdeinit4_kded4.so
#38 0x00000000004082ce in _start ()


Reproducible: Always

Steps to Reproduce:
Not sure if any of the old settings from 4.6 are causing this, or if my
slightly dated polkit (0.99) or polkit-qt (svn 20101220) is at fault. Will look
into that some more when I have a bit of time.

Actual Results:  
kded crashes

Expected Results:  
kded doesn't crash

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