Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.8.0
Operating System: Linux 3.1.0-7.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

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

Selected Shutdown from the menu.  Happens every time.
This is Fedora 16, upgraded from Fedora 15 using preupgrade.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  0x0000003af25bd204 in QGraphicsLayoutItem::setParentLayoutItem (this=0x32ffa70, parent=0x0) at graphicsview/qgraphicslayoutitem.cpp:851
#7  0x00007f304882cf2f in SystemTray::CompactLayout::removeItem (this=0x11cf250, item=0x32ffa70) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/compactlayout.cpp:127
#8  0x00007f3048830db7 in SystemTray::TaskArea::addWidgetForTask (this=0x11cf780, task=0x32ca280) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/taskarea.cpp:280
#9  0x00007f3048831b16 in SystemTray::TaskArea::addTask (this=0x11cf780, task=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#10 0x0000003aeef8b7d1 in QMetaObject::activate (sender=0x102dad0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb042d190) at kernel/qobject.cpp:3546
#11 0x00007f3048814ce2 in SystemTray::Manager::taskChanged (this=<optimized out>, _t1=0x32ca280) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/manager.moc:120
#12 0x0000003aeef8b7d1 in QMetaObject::activate (sender=0x32ca280, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb042d2e0) at kernel/qobject.cpp:3546
#13 0x00007f304881585f in SystemTray::Task::changed (this=<optimized out>, _t1=0x32ca280) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/task.moc:126
#14 0x00007f3048815b31 in SystemTray::Task::widgetDeleted (this=0x32ca280) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/core/task.cpp:129
#15 0x0000003aeef8b7d1 in QMetaObject::activate (sender=0x32ffa50, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb042d480) at kernel/qobject.cpp:3546
#16 0x0000003aeef8c17f in QObject::destroyed (this=<optimized out>, _t1=0x32ffa50) at .moc/release-shared/moc_qobject.cpp:149
#17 0x0000003aeef8fc2e in QObject::~QObject (this=0x32ffa50, __in_chrg=<optimized out>) at kernel/qobject.cpp:843
#18 0x0000003af25fe0a1 in ~QGraphicsObject (this=0x32ffa50, __in_chrg=<optimized out>) at ../../src/gui/graphicsview/qgraphicsitem.h:547
#19 QGraphicsWidget::~QGraphicsWidget (this=0x32ffa50, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#20 0x00007f3048816b69 in SystemTray::FdoGraphicsWidget::~FdoGraphicsWidget (this=0x32ffa50, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/protocols/fdo/fdographicswidget.cpp:77
#21 0x0000003af25ae866 in QGraphicsItem::~QGraphicsItem (this=0x10279a0, __in_chrg=<optimized out>) at graphicsview/qgraphicsitem.cpp:1490
#22 0x0000003af25fe099 in ~QGraphicsObject (this=0x1027990, __in_chrg=<optimized out>) at ../../src/gui/graphicsview/qgraphicsitem.h:547
#23 QGraphicsWidget::~QGraphicsWidget (this=0x1027990, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#24 0x00007f304882f6b9 in SystemTray::TaskArea::~TaskArea (this=0x1027990, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/taskarea.cpp:147
#25 0x00007f3048827cad in SystemTray::Applet::~Applet (this=0x102a850, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/applet.cpp:145
#26 0x00007f3048827eb9 in SystemTray::Applet::~Applet (this=0x102a850, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/generic/applets/systemtray/ui/applet.cpp:163
#27 0x0000003afc9252ef in qDeleteAll<QList<Plasma::Applet*>::const_iterator> (end=<optimized out>, begin=<optimized out>) at /usr/include/QtCore/qalgorithms.h:322
#28 qDeleteAll<QList<Plasma::Applet*> > (c=...) at /usr/include/QtCore/qalgorithms.h:330
#29 ~ContainmentPrivate (this=0xf522f0, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.2/plasma/private/containment_p.h:70
#30 Plasma::Containment::~Containment (this=0xef8aa0, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.2/plasma/containment.cpp:148
#31 0x00007f304973fbd9 in Panel::~Panel (this=0xef8aa0, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/desktop/containments/panel/panel.cpp:129
#32 0x0000003afc9381f7 in qDeleteAll<QList<Plasma::Containment*>::const_iterator> (end=<optimized out>, begin=<optimized out>) at /usr/include/QtCore/qalgorithms.h:322
#33 qDeleteAll<QList<Plasma::Containment*> > (c=...) at /usr/include/QtCore/qalgorithms.h:330
#34 Plasma::CoronaPrivate::~CoronaPrivate (this=0xed2390, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.2/plasma/corona.cpp:805
#35 0x0000003afc938434 in Plasma::Corona::~Corona (this=0xea5750, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.2/plasma/corona.cpp:82
#36 0x0000003afce35c29 in DesktopCorona::~DesktopCorona (this=0xea5750, __in_chrg=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/desktop/shell/desktopcorona.cpp:73
#37 0x0000003afce5684e in PlasmaApp::cleanup (this=0xd0f790) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/desktop/shell/plasmaapp.cpp:381
#38 0x0000003afce5bcca in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=0xd0f790, _c=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/x86_64-redhat-linux-gnu/plasma/desktop/shell/plasmaapp.moc:120
#39 PlasmaApp::qt_static_metacall (_o=0xd0f790, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/x86_64-redhat-linux-gnu/plasma/desktop/shell/plasmaapp.moc:97
#40 0x0000003aeef8b7d1 in QMetaObject::activate (sender=0xd0f790, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3546
#41 0x0000003aeef7b925 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1153
#42 0x0000003afce41263 in kdemain (argc=1, argv=0x7fffb042de88) at /usr/src/debug/kdebase-workspace-4.7.2/kdebase-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#43 0x0000003ae462169d in __libc_start_main (main=0x400870 <main(int, char**)>, argc=1, ubp_av=0x7fffb042de88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb042de78) at libc-start.c:226
#44 0x00000000004008a1 in _start ()

Possible duplicates by query: bug 285763, bug 285590, bug 283937, bug 282269, bug 281557.

Reported using DrKonqi