Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
While creating a large tar in a konsole window (may be unrelated), I wanted to check the information tray icon. Nothing seemed to happen upon the mouse click. I tried again, both left and right clicks -- nothing. Then, the tray disappeared completely, and a calendar window opened up (maybe this was due to my clicking on the organizer tray icon while the tray icons were disappearing). Then the crash dialog opened up.

 -- Backtrace:
Application: Plasma-Arbeitsfläche (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f90f4517760 (LWP 1788))]

Thread 2 (Thread 0x7f90cbfff710 (LWP 1790)):
#0  0x00007f90f1503f83 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f90edec84a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f90edec88fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f90f2b0c566 in QEventDispatcherGlib::processEvents (this=0x1ccb1d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f90f2ae1992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f90f2ae1d6c in QEventLoop::exec (this=0x7f90cbffedb0, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f90f29ebd59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f90f2ac2178 in QInotifyFileSystemWatcherEngine::run (this=0x1ca9720) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f90f29ee775 in QThreadPrivate::start (arg=0x1ca9720) at thread/qthread_unix.cpp:248
#9  0x00007f90f275e9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f90f15106fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f90f4517760 (LWP 1788)):
[KCrash Handler]
#5  0x00007f90f1c957c4 in QDrag::target (this=0x196ad50) at kernel/qdrag.cpp:217
#6  0x00007f90eb507f2a in Plasma::ExtenderItem::mouseMoveEvent (this=0x1cab070, event=<value optimized out>) at ../../plasma/extenders/extenderitem.cpp:635
#7  0x00007f90f2278502 in QGraphicsItem::sceneEvent (this=0x1cab080, event=0x0) at graphicsview/qgraphicsitem.cpp:6493
#8  0x00007f90f228e898 in QGraphicsScenePrivate::sendMouseEvent (this=0x1700be0, mouseEvent=0x7fff3bc908f0) at graphicsview/qgraphicsscene.cpp:1255
#9  0x00007f90f2292a31 in QGraphicsScene::mouseMoveEvent (this=<value optimized out>, mouseEvent=0x7fff3bc908f0) at graphicsview/qgraphicsscene.cpp:4031
#10 0x00007f90f22a4fab in QGraphicsScene::event (this=0x1671730, event=0x7fff3bc908f0) at graphicsview/qgraphicsscene.cpp:3391
#11 0x00007f90f1c7f22c in QApplicationPrivate::notify_helper (this=0x162e280, receiver=0x1671730, e=0x7fff3bc908f0) at kernel/qapplication.cpp:4300
#12 0x00007f90f1c856fb in QApplication::notify (this=0x1617d70, receiver=0x1671730, e=0x7fff3bc908f0) at kernel/qapplication.cpp:4183
#13 0x00007f90f302a526 in KApplication::notify (this=0x1617d70, receiver=0x1671730, event=0x7fff3bc908f0) at ../../kdeui/kernel/kapplication.cpp:302
#14 0x00007f90f2ae306c in QCoreApplication::notifyInternal (this=0x1617d70, receiver=0x1671730, event=0x7fff3bc908f0) at kernel/qcoreapplication.cpp:704
#15 0x00007f90f22c0287 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x1d449a0, event=0x7fff3bc91450) at graphicsview/qgraphicsview.cpp:645
#16 0x00007f90f22c047e in QGraphicsView::mouseMoveEvent (this=0x1a9b9e0, event=0x7fff3bc91450) at graphicsview/qgraphicsview.cpp:3197
#17 0x00007f90f1cd51df in QWidget::event (this=0x1a9b9e0, event=0x7fff3bc91450) at kernel/qwidget.cpp:7983
#18 0x00007f90f207c4e6 in QFrame::event (this=0x1a9b9e0, e=0x7fff3bc91450) at widgets/qframe.cpp:557
#19 0x00007f90f22bdf0b in QGraphicsView::viewportEvent (this=0x1a9b9e0, event=0x7fff3bc91450) at graphicsview/qgraphicsview.cpp:2787
#20 0x00007f90f2ae2487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1d815b0, event=0x7fff3bc91450) at kernel/qcoreapplication.cpp:819
#21 0x00007f90f1c7f1fc in QApplicationPrivate::notify_helper (this=0x162e280, receiver=0x1d815b0, e=0x7fff3bc91450) at kernel/qapplication.cpp:4296
#22 0x00007f90f1c85ecb in QApplication::notify (this=0x1617d70, receiver=0x1d815b0, e=0x7fff3bc91450) at kernel/qapplication.cpp:3865
#23 0x00007f90f302a526 in KApplication::notify (this=0x1617d70, receiver=0x1d815b0, event=0x7fff3bc91450) at ../../kdeui/kernel/kapplication.cpp:302
#24 0x00007f90f2ae306c in QCoreApplication::notifyInternal (this=0x1617d70, receiver=0x1d815b0, event=0x7fff3bc91450) at kernel/qcoreapplication.cpp:704
#25 0x00007f90f1c850ae in QCoreApplication::sendEvent (receiver=0x1d815b0, event=0x7fff3bc91450, alienWidget=0x0, nativeWidget=0x1ae6390, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#26 QApplicationPrivate::sendMouseEvent (receiver=0x1d815b0, event=0x7fff3bc91450, alienWidget=0x0, nativeWidget=0x1ae6390, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, 
    spontaneous=true) at kernel/qapplication.cpp:2965
#27 0x00007f90f1d04f65 in QETWidget::translateMouseEvent (this=0x1ae6390, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#28 0x00007f90f1d038ac in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff3bc91d70) at kernel/qapplication_x11.cpp:3501
#29 0x00007f90f1d2f882 in x11EventSourceDispatch (s=0x16318f0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x00007f90edec48c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0x00007f90edec8748 in ?? () from /lib/libglib-2.0.so.0
#32 0x00007f90edec88fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0x00007f90f2b0c513 in QEventDispatcherGlib::processEvents (this=0x15ae140, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#34 0x00007f90f1d2f46e in QGuiEventDispatcherGlib::processEvents (this=0x196ad50, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007f90f2ae1992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#36 0x00007f90f2ae1d6c in QEventLoop::exec (this=0x7fff3bc920a0, flags=) at kernel/qeventloop.cpp:201
#37 0x00007f90f2ae5aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#38 0x00007f90e7b20fb2 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#39 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4f9 "0") at ../../kinit/kinit.cpp:717
#40 0x0000000000407cb0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#41 0x000000000040823a in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1402
#42 0x0000000000408e22 in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1845

Reported using DrKonqi