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 2.6.31-19-generic-pae i686
Distribution: Ubuntu 9.10

-- Information about the crash:
Plasma crashed when removing the desktop activity. I only have one activity and now my analog clock widget has disappeared and my wallpaper has been replaced with the KDE 4.4 default wallpaper. 

 -- Backtrace:
Application: Plasma-werkgebied (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5550760 (LWP 1970))]

Thread 2 (Thread 0xa57ffb70 (LWP 1973)):
#0  0xb77a1430 in __kernel_vsyscall ()
#1  0xb6af9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6b70307 in QWaitConditionPrivate::wait (this=0x9d733a0, mutex=0x9d7339c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9d733a0, mutex=0x9d7339c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0xb5da2102 in QHostInfoAgent::run (this=0x9d73390) at kernel/qhostinfo.cpp:252
#5  0xb6b6f3ae in QThreadPrivate::start (arg=0x9d73390) at thread/qthread_unix.cpp:244
#6  0xb6af580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb5f118de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5550760 (LWP 1970)):
[KCrash Handler]
#6  0xb680d22a in QGraphicsItem::isPanel (this=0x9405820) at graphicsview/qgraphicsitem.cpp:1626
#7  0xb61b219c in QApplicationPrivate::notify_helper (this=0x933e3e8, receiver=0x9405820, e=0xbfb4bd84) at kernel/qapplication.cpp:4242
#8  0xb61b8df7 in QApplication::notify (this=0x9338350, receiver=0x9405820, e=0xbfb4bd84) at kernel/qapplication.cpp:3661
#9  0xb6f64a1a in KApplication::notify (this=0x9338350, receiver=0x9405820, event=0xbfb4bd84) at ../../kdeui/kernel/kapplication.cpp:302
#10 0xb6c70eab in QCoreApplication::notifyInternal (this=0x9338350, receiver=0x9405820, event=0xbfb4bd84) at kernel/qcoreapplication.cpp:704
#11 0xb61c091e in QCoreApplication::sendEvent (receiver=0x9405820, event=0x9391240) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#12 0xb687538c in QGraphicsView::viewportEvent (this=0xa3b2888, event=0xbfb4bd84) at graphicsview/qgraphicsview.cpp:2651
#13 0xb66a45e5 in QAbstractScrollAreaPrivate::viewportEvent (this=0xa3c41a8, o=0xa3c5e18, e=0xbfb4bd84) at widgets/qabstractscrollarea_p.h:100
#14 QAbstractScrollAreaFilter::eventFilter (this=0xa3c41a8, o=0xa3c5e18, e=0xbfb4bd84) at widgets/qabstractscrollarea_p.h:116
#15 0xb6c7014a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x933e3e8, receiver=0xa3c5e18, event=0xbfb4bd84) at kernel/qcoreapplication.cpp:819
#16 0xb61b2179 in QApplicationPrivate::notify_helper (this=0x933e3e8, receiver=0xa3c5e18, e=0xbfb4bd84) at kernel/qapplication.cpp:4238
#17 0xb61b8eb7 in QApplication::notify (this=0x9338350, receiver=0xa3c5e18, e=0xbfb4bd84) at kernel/qapplication.cpp:4207
#18 0xb6f64a1a in KApplication::notify (this=0x9338350, receiver=0xa3c5e18, event=0xbfb4bd84) at ../../kdeui/kernel/kapplication.cpp:302
#19 0xb6c70eab in QCoreApplication::notifyInternal (this=0x9338350, receiver=0xa3c5e18, event=0xbfb4bd84) at kernel/qcoreapplication.cpp:704
#20 0xb620fa4d in QCoreApplication::sendEvent (this=0xa3b2888, event=0xbfb4bd84) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QWidget::event (this=0xa3b2888, event=0xbfb4bd84) at kernel/qwidget.cpp:8230
#22 0xb6608433 in QFrame::event (this=0xa3b2888, e=0xbfb4bd84) at widgets/qframe.cpp:557
#23 0xb66a2707 in QAbstractScrollArea::event (this=0xa3b2888, e=0xbfb4bd84) at widgets/qabstractscrollarea.cpp:985
#24 0xb68781e6 in QGraphicsView::event (this=0xa3b2888, event=0xbfb4bd84) at graphicsview/qgraphicsview.cpp:2625
#25 0xb61b219c in QApplicationPrivate::notify_helper (this=0x933e3e8, receiver=0xa3b2888, e=0xbfb4bd84) at kernel/qapplication.cpp:4242
#26 0xb61b8eb7 in QApplication::notify (this=0x9338350, receiver=0xa3b2888, e=0xbfb4bd84) at kernel/qapplication.cpp:4207
#27 0xb6f64a1a in KApplication::notify (this=0x9338350, receiver=0xa3b2888, event=0xbfb4bd84) at ../../kdeui/kernel/kapplication.cpp:302
#28 0xb6c70eab in QCoreApplication::notifyInternal (this=0x9338350, receiver=0xa3b2888, event=0xbfb4bd84) at kernel/qcoreapplication.cpp:704
#29 0xb61bc496 in QCoreApplication::sendSpontaneousEvent (act=0xa3b2888) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#30 QApplication::setActiveWindow (act=0xa3b2888) at kernel/qapplication.cpp:2441
#31 0xb6240b57 in QApplication::x11ProcessEvent (this=0x9338350, event=0xbfb4c15c) at kernel/qapplication_x11.cpp:3420
#32 0xb627004a in x11EventSourceDispatch (s=0x9340440, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb5976e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#34 0xb597a730 in ?? () from /lib/libglib-2.0.so.0
#35 0xb597a863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#36 0xb6c9cbd5 in QEventDispatcherGlib::processEvents (this=0x933e1d8, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#37 0xb626fb75 in QGuiEventDispatcherGlib::processEvents (this=0x933e1d8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb6c6f4c9 in QEventLoop::processEvents (this=0xbfb4c454, flags=) at kernel/qeventloop.cpp:149
#39 0xb6c6f91a in QEventLoop::exec (this=0xbfb4c454, flags=...) at kernel/qeventloop.cpp:201
#40 0xb6c73b0f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#41 0xb61b2237 in QApplication::exec () at kernel/qapplication.cpp:3570
#42 0xb29b21ee in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804dff7 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x930cc20 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051429 "0") at ../../kinit/kinit.cpp:706
#44 0x0804ec15 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1198
#45 0x0804f08c in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1391
#46 0x0804fe27 in main (argc=4, argv=0xbfb4cf04, envp=0xbfb4cf18) at ../../kinit/kinit.cpp:1830

This bug may be a duplicate of or related to bug 224279.

Possible duplicates by query: bug 224279, bug 223963, bug 222588, bug 222074, bug 221042.

Reported using DrKonqi