Application: plasma-desktop (0.3)
KDE Platform Version: 4.3.95 (KDE 4.3.95 (KDE 4.4 RC2))
Qt Version: 4.6.0
Operating System: Linux 2.6.31-17-generic x86_64
Distribution: Ubuntu 9.10

-- Information about the crash:
I opened the toolbox Zoom out modes.

I want 4 activities and I saw 5. I tried to remove one, but I didn't see the remove button, so I choose the first one and I remove that activity and plasma crashed afterwards.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f6dfa1ee7f0 (LWP 1800))]

Thread 2 (Thread 0x7f6dd5b19910 (LWP 1801)):
#0  0x00007f6df843b5a9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f6df86c667b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007f6df6e823ec in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f6df86c56c5 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f6df8436a04 in start_thread () from /lib/libpthread.so.0
#5  0x00007f6df720180d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6dfa1ee7f0 (LWP 1800)):
[KCrash Handler]
#5  0x00007f6df7f32ed4 in QGraphicsItem::isPanel() const () from /usr/lib/libQtGui.so.4
#6  0x00007f6df7f7debc in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#7  0x00007f6df795ee8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#8  0x00007f6df796548d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#9  0x00007f6df8cfe1e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#10 0x00007f6df87b904c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#11 0x00007f6df7f94b98 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#12 0x00007f6df87b8467 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#13 0x00007f6df795ee5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#14 0x00007f6df796548d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#15 0x00007f6df8cfe1e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0x00007f6df87b904c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x00007f6df79b4693 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x00007f6df7d57e16 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007f6df7de28db in QAbstractScrollArea::event(QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007f6df795ee8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007f6df796548d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007f6df8cfe1e6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#23 0x00007f6df87b904c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#24 0x00007f6df79686ab in QApplication::setActiveWindow(QWidget*) () from /usr/lib/libQtGui.so.4
#25 0x00007f6df79e210e in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#26 0x00007f6df7a0d712 in ?? () from /usr/lib/libQtGui.so.4
#27 0x00007f6df3be7bce in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0x00007f6df3beb598 in ?? () from /lib/libglib-2.0.so.0
#29 0x00007f6df3beb6c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0x00007f6df87e2623 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007f6df7a0d2fe in ?? () from /usr/lib/libQtGui.so.4
#32 0x00007f6df87b7972 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x00007f6df87b7d4c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x00007f6df87bba8b in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#35 0x00007f6dec493eb2 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#36 0x0000000000406fb8 in _start ()

This bug may be a duplicate of or related to bug 223099.

Possible duplicates by query: bug 223949, bug 223914, bug 223904, bug 223868, bug 223819.

Reported using DrKonqi