Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38.3-tmb-laptop-1.mga x86_64
Distribution: "Mageia 1"

-- Information about the crash:
- What I was doing when the application crashed:
I entered my name and password then I saw icons appearing and after KDE icon appeared, it dumps

The crash can be reproduced every time.

-- Backtrace:
Application: Outil de gestion de fenêtres Plasma (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0x00007fdc1e73e685 in QGraphicsView::mapFromScene(QPointF const&) const () from /usr/lib64/libQtGui.so.4
#7  0x00007fdc1601231f in Plasma::Corona::popupPosition (this=0x1e3bfa0, item=0x22a2b00, s=..., alignment=Qt::AlignLeft) at /usr/src/debug/kdelibs-4.6.2/plasma/corona.cpp:798
#8  0x00007fdc160470d1 in Plasma::PopupAppletPrivate::updateDialogPosition (this=0x23ab000) at /usr/src/debug/kdelibs-4.6.2/plasma/popupapplet.cpp:891
#9  0x00007fdc16047d5a in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0x23ab000, constraints=...) at /usr/src/debug/kdelibs-4.6.2/plasma/popupapplet.cpp:431
#10 0x00007fdc15fef929 in Plasma::Applet::flushPendingConstraintsEvents (this=0x24093e0) at /usr/src/debug/kdelibs-4.6.2/plasma/applet.cpp:1341
#11 0x00007fdc03cd0a86 in SystemTray::PlasmoidTask::forwardConstraintsEvent (this=<value optimized out>, constraints=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.6.2/plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtask.cpp:128
#12 0x00007fdc03ccedd3 in SystemTray::PlasmoidProtocol::forwardConstraintsEvent (this=0x21c06e0, constraints=..., host=0x2288c00)
    at /usr/src/debug/kdebase-workspace-4.6.2/plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:54
#13 0x00007fdc03cc74d9 in SystemTray::Manager::forwardConstraintsEvent (this=<value optimized out>, constraints=<value optimized out>, host=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.6.2/plasma/generic/applets/systemtray/core/manager.cpp:100
#14 0x00007fdc03cd8e4a in SystemTray::Applet::constraintsEvent (this=0x2288c00, constraints=...) at /usr/src/debug/kdebase-workspace-4.6.2/plasma/generic/applets/systemtray/ui/applet.cpp:252
#15 0x00007fdc15fef947 in Plasma::Applet::flushPendingConstraintsEvents (this=0x2288c00) at /usr/src/debug/kdelibs-4.6.2/plasma/applet.cpp:1345
#16 0x00007fdc1600168f in Plasma::ContainmentPrivate::initApplets (this=0x223c040) at /usr/src/debug/kdelibs-4.6.2/plasma/containment.cpp:471
#17 0x00007fdc16014ecc in Plasma::CoronaPrivate::importLayout (this=0x1fa9420, conf=<value optimized out>, mergeConfig=false) at /usr/src/debug/kdelibs-4.6.2/plasma/corona.cpp:566
#18 0x00007fdc16015a13 in Plasma::Corona::loadLayout (this=0x1e3bfa0, configName=...) at /usr/src/debug/kdelibs-4.6.2/plasma/corona.cpp:494
#19 0x00007fdc16015af3 in Plasma::Corona::initializeLayout (this=0x1e3bfa0, configName=...) at /usr/src/debug/kdelibs-4.6.2/plasma/corona.cpp:397
#20 0x00007fdc0d877802 in PlasmaApp::corona (this=0x1edd9c0) at /usr/src/debug/kdebase-workspace-4.6.2/plasma/desktop/shell/plasmaapp.cpp:800
#21 0x00007fdc0d877aec in PlasmaApp::setupDesktop (this=0x1edd9c0) at /usr/src/debug/kdebase-workspace-4.6.2/plasma/desktop/shell/plasmaapp.cpp:302
#22 0x00007fdc0d879400 in PlasmaApp::qt_metacall (this=0x1edd9c0, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x1f76180)
    at /usr/src/debug/kdebase-workspace-4.6.2/build/plasma/desktop/shell/plasmaapp.moc:155
#23 0x00007fdc1ef948ba in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#24 0x00007fdc1e11df36 in QApplication::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#25 0x00007fdc1e11b8a4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#26 0x00007fdc1e12047a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#27 0x00007fdc1fd08076 in KApplication::notify (this=0x1edd9c0, receiver=0x1edd9c0, event=0x1f72f10) at /usr/src/debug/kdelibs-4.6.2/kdeui/kernel/kapplication.cpp:311
#28 0x00007fdc1ef803dc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#29 0x00007fdc1ef83be5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#30 0x00007fdc1efab813 in ?? () from /usr/lib64/libQtCore.so.4
#31 0x00007fdc1a9f6dc3 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#32 0x00007fdc1a9f75a0 in ?? () from /lib64/libglib-2.0.so.0
#33 0x00007fdc1a9f783d in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#34 0x00007fdc1efab9af in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#35 0x00007fdc1e1c221e in ?? () from /usr/lib64/libQtGui.so.4
#36 0x00007fdc1ef7f792 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#37 0x00007fdc1ef7f9dc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#38 0x00007fdc1ef83e9b in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#39 0x00007fdc0d85ee7d in kdemain (argc=1, argv=0x1e929f0) at /usr/src/debug/kdebase-workspace-4.6.2/plasma/desktop/shell/main.cpp:120
#40 0x0000000000406cc9 in launch (argc=1, _name=0x1e72218 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=<value optimized out>, envs=<value optimized out>, reset_env=false, 
    tty=0x0, avoid_loops=false, startup_id_str=0x40ad4e "0") at /usr/src/debug/kdelibs-4.6.2/kinit/kinit.cpp:734
#41 0x0000000000407840 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at /usr/src/debug/kdelibs-4.6.2/kinit/kinit.cpp:1226
#42 0x0000000000407f95 in handle_requests (waitForPid=<value optimized out>) at /usr/src/debug/kdelibs-4.6.2/kinit/kinit.cpp:1419
#43 0x0000000000408be0 in main (argc=4, argv=0x7fff30d84cf8, envp=0x7fff30d84d20) at /usr/src/debug/kdelibs-4.6.2/kinit/kinit.cpp:1907

Reported using DrKonqi