Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.00 (KDE 4.4.0)
Qt Version: 4.6.1
Operating System: Linux 2.6.31-20-generic i686
Distribution: Ubuntu 9.10

-- Information about the crash:
I've got only two widgets, Desktop folder and Logout/Lockscreen. Choqok and Quassel are starting automatically.
Did distro-upgrade from 4.3.5 to 4.4

Happens every time i log in.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[KCrash Handler]
#6  0x030bbe1a in TaskManager::Task::window() const () from /usr/lib/libtaskmanager.so.4
#7  0x08814894 in STasksTask (this=0x9586c70, abstractItem=0x9ac50d0, parent=0x9a91120, applet=0x95192a8) at /home/matus/Desktop/stasks-0.5.1-peek/applet/stasks_task.cpp:33
#8  0x088116fd in STasksItem (this=0x9a91120, abstractItem=0x9ac50d0, parent=0x95192a8) at /home/matus/Desktop/stasks-0.5.1-peek/applet/stasks_item.cpp:70
#9  0x08808758 in STasksApplet::itemAdded (this=0x95192a8, groupableItem=0x9ac50d0) at /home/matus/Desktop/stasks-0.5.1-peek/applet/stasks_applet.cpp:92
#10 0x0880ac4c in STasksApplet::qt_metacall (this=0x95192a8, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfb053d8) at /home/matus/Desktop/stasks-0.5.1-peek/build/applet/stasks_applet.moc:96
#11 0x07eeff6a in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#12 0x07efe705 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x030c7413 in TaskManager::TaskGroup::itemAdded(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#14 0x030c84a3 in TaskManager::TaskGroup::add(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#15 0x030b974d in ?? () from /usr/lib/libtaskmanager.so.4
#16 0x030b417a in ?? () from /usr/lib/libtaskmanager.so.4
#17 0x030b471d in ?? () from /usr/lib/libtaskmanager.so.4
#18 0x030b4da4 in TaskManager::GroupManager::setGroupingStrategy(TaskManager::GroupManager::TaskGroupingStrategy) () from /usr/lib/libtaskmanager.so.4
#19 0x0880a710 in STasksApplet::configuration (this=0x95192a8) at /home/matus/Desktop/stasks-0.5.1-peek/applet/stasks_applet.cpp:605
#20 0x0880ac5b in STasksApplet::qt_metacall (this=0x95192a8, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfb0591c) at /home/matus/Desktop/stasks-0.5.1-peek/build/applet/stasks_applet.moc:95
#21 0x07eeff6a in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#22 0x07efe705 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#23 0x08806427 in STasksApplet::settingsChanged (this=0x95192a8) at /home/matus/Desktop/stasks-0.5.1-peek/build/applet/stasks_applet.moc:109
#24 0x088074db in STasksApplet::init (this=0x95192a8) at /home/matus/Desktop/stasks-0.5.1-peek/applet/stasks_applet.cpp:85
#25 0x00b5e4f2 in Plasma::Corona::loadLayout(QString const&) () from /usr/lib/libplasma.so.3
#26 0x00b5efee in Plasma::Corona::initializeLayout(QString const&) () from /usr/lib/libplasma.so.3
#27 0x001c69a4 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#28 0x001c6d3a in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#29 0x001c76a0 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0x07eeff6a in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#31 0x07efe705 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#32 0x07f06217 in ?? () from /usr/lib/libQtCore.so.4
#33 0x07f0632c in ?? () from /usr/lib/libQtCore.so.4
#34 0x07efb5a4 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#35 0x04d6127c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#36 0x04d67ede in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#37 0x078561fa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#38 0x07eeacfb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#39 0x07f19f96 in ?? () from /usr/lib/libQtCore.so.4
#40 0x07f16bf4 in ?? () from /usr/lib/libQtCore.so.4
#41 0x02709e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#42 0x0270d730 in ?? () from /lib/libglib-2.0.so.0
#43 0x0270d863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#44 0x07f168e5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#45 0x04e20485 in ?? () from /usr/lib/libQtGui.so.4
#46 0x07ee9319 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#47 0x07ee976a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#48 0x07eed95f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#49 0x04d61317 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#50 0x001ad17e in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#51 0x080485cb in _start ()

This bug may be a duplicate of or related to bug 228199.

Possible duplicates by query: bug 228234, bug 228199, bug 226389, bug 225089, bug 222229.

Reported using DrKonqi