Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
I was moving the calendar widget around my grid desktop. In the top left corner was the clock widget and I was moving the calendar from the right hand side of the clock to directly beneath it, when Plasma crashed and produced an error message.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f1b246b57c0 (LWP 2452))]

Thread 2 (Thread 0x7f1afff20700 (LWP 2453)):
#0  0x00007f1b23f95773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f1b18520f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1b18521429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1b21187f3e in QEventDispatcherGlib::processEvents (this=0x27a5820, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f1b2115bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f1b2115bef7 in QEventLoop::exec (this=0x7f1afff1fcd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f1b2107327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f1b2113ecbf in QInotifyFileSystemWatcherEngine::run (this=0x27a0770) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1b21075d05 in QThreadPrivate::start (arg=0x27a0770) at thread/qthread_unix.cpp:331
#9  0x00007f1b1583a56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f1b1902defc in start_thread (arg=0x7f1afff20700) at pthread_create.c:304
#11 0x00007f1b23fa189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1b246b57c0 (LWP 2452)):
[KCrash Handler]
#6  0x00007f1b09b64770 in sceneEventFilter (event=0x7fff08882400, watched=<optimized out>, this=0x1d52e00) at ../../../../containments/groupingdesktop/lib/groupingcontainment.cpp:732
#7  GroupingContainment::sceneEventFilter (this=0x1d52e00, watched=<optimized out>, event=0x7fff08882400) at ../../../../containments/groupingdesktop/lib/groupingcontainment.cpp:686
#8  0x00007f1b20afbefa in QGraphicsScenePrivate::filterEvent (this=0x1c89560, item=0x1eb0d10, event=0x7fff08882400) at graphicsview/qgraphicsscene.cpp:1177
#9  0x00007f1b20afbfa5 in QGraphicsScenePrivate::sendEvent (this=0x1c89560, item=0x1eb0d10, event=0x7fff08882400) at graphicsview/qgraphicsscene.cpp:1205
#10 0x00007f1b20afce2c in QGraphicsScenePrivate::sendHoverEvent (this=0x1c89560, type=<optimized out>, item=0x1eb0d10, hoverEvent=0x7fff08882590) at graphicsview/qgraphicsscene.cpp:1264
#11 0x00007f1b20afd3dd in QGraphicsScenePrivate::dispatchHoverEvent (this=0x1c89560, hoverEvent=0x7fff08882590) at graphicsview/qgraphicsscene.cpp:3931
#12 0x00007f1b20afd762 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff08882a70) at graphicsview/qgraphicsscene.cpp:4090
#13 0x00007f1b20b0b8cb in QGraphicsScene::event (this=0x1b4d1b0, event=0x7fff08882a70) at graphicsview/qgraphicsscene.cpp:3446
#14 0x00007f1b2050d424 in notify_helper (e=0x7fff08882a70, receiver=0x1b4d1b0, this=0x1b4d280) at kernel/qapplication.cpp:4486
#15 QApplicationPrivate::notify_helper (this=0x1b4d280, receiver=0x1b4d1b0, e=0x7fff08882a70) at kernel/qapplication.cpp:4458
#16 0x00007f1b20512291 in QApplication::notify (this=0x1b3e760, receiver=0x1b4d1b0, e=0x7fff08882a70) at kernel/qapplication.cpp:4365
#17 0x00007f1b21e0b126 in KApplication::notify (this=0x1b3e760, receiver=0x1b4d1b0, event=0x7fff08882a70) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007f1b2115cafc in QCoreApplication::notifyInternal (this=0x1b3e760, receiver=0x1b4d1b0, event=0x7fff08882a70) at kernel/qcoreapplication.cpp:787
#19 0x00007f1b20b258d9 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x2e38120, event=0x7fff088833a0) at graphicsview/qgraphicsview.cpp:647
#20 0x00007f1b20b25afe in QGraphicsView::mouseMoveEvent (this=0x2b7cdf0, event=0x7fff088833a0) at graphicsview/qgraphicsview.cpp:3274
#21 0x00007f1b2055dcce in QWidget::event (this=0x2b7cdf0, event=0x7fff088833a0) at kernel/qwidget.cpp:8280
#22 0x00007f1b209064f6 in QFrame::event (this=0x2b7cdf0, e=0x7fff088833a0) at widgets/qframe.cpp:557
#23 0x00007f1b20b29d3b in QGraphicsView::viewportEvent (this=0x2b7cdf0, event=0x7fff088833a0) at graphicsview/qgraphicsview.cpp:2864
#24 0x00007f1b2115cc88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x27353d0, event=0x7fff088833a0) at kernel/qcoreapplication.cpp:902
#25 0x00007f1b2050d3ef in notify_helper (e=0x7fff088833a0, receiver=0x27353d0, this=0x1b4d280) at kernel/qapplication.cpp:4482
#26 QApplicationPrivate::notify_helper (this=0x1b4d280, receiver=0x27353d0, e=0x7fff088833a0) at kernel/qapplication.cpp:4458
#27 0x00007f1b20512c6b in QApplication::notify (this=<optimized out>, receiver=0x27353d0, e=0x7fff088833a0) at kernel/qapplication.cpp:4047
#28 0x00007f1b21e0b126 in KApplication::notify (this=0x1b3e760, receiver=0x27353d0, event=0x7fff088833a0) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007f1b2115cafc in QCoreApplication::notifyInternal (this=0x1b3e760, receiver=0x27353d0, event=0x7fff088833a0) at kernel/qcoreapplication.cpp:787
#30 0x00007f1b2050e3f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QApplicationPrivate::sendMouseEvent (receiver=0x27353d0, event=0x7fff088833a0, alienWidget=0x27353d0, nativeWidget=0x2b7cdf0, buttonDown=0x0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#32 0x00007f1b2058d945 in QETWidget::translateMouseEvent (this=0x2b7cdf0, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#33 0x00007f1b2058c8be in QApplication::x11ProcessEvent (this=0x1b3e760, event=0x7fff08883bc0) at kernel/qapplication_x11.cpp:3690
#34 0x00007f1b205b5412 in x11EventSourceDispatch (s=0x1b501b0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x00007f1b18520a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f1b18521258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f1b18521429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007f1b21187ed6 in QEventDispatcherGlib::processEvents (this=0x1a9bf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#39 0x00007f1b205b507e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007f1b2115bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007f1b2115bef7 in QEventLoop::exec (this=0x7fff08883f90, flags=...) at kernel/qeventloop.cpp:201
#42 0x00007f1b21160789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#43 0x00007f1b242a01a3 in kdemain (argc=1, argv=0x7fff08884378) at ../../../../plasma/desktop/shell/main.cpp:120
#44 0x00007f1b23ee130d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff08884378, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff08884368) at libc-start.c:226
#45 0x0000000000400671 in _start ()

Possible duplicates by query: bug 284903, bug 272464, bug 272359, bug 268433, bug 268424.

Reported using DrKonqi