Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-30-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I logged on to OpenDesktop using the widget, and immediately the desktop crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8af909b780 (LWP 1574))]

Thread 7 (Thread 0x7f8ad52fd700 (LWP 1575)):
#0  QThreadData::current () at thread/qthread_unix.cpp:201
#1  0x00007f8af5b31b89 in postEventSourcePrepare (s=0x7f8ad00012d0, timeout=0x7f8ad52fcc6c) at kernel/qeventdispatcher_glib.cpp:256
#2  0x00007f8aecb0e846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8aecb0ef5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8aecb0f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8af5b32426 in QEventDispatcherGlib::processEvents (this=0x7f8ad00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f8af5b01c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8af5b01ed7 in QEventLoop::exec (this=0x7f8ad52fcdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8af5a00fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f8af5ae19ff in QInotifyFileSystemWatcherEngine::run (this=0x15ef940) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f8af5a03fcb in QThreadPrivate::start (arg=0x15ef940) at thread/qthread_unix.cpp:298
#11 0x00007f8aed413e9a in start_thread (arg=0x7f8ad52fd700) at pthread_create.c:308
#12 0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f8ace70a700 (LWP 1576)):
#0  0x00007f8aed41705d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f8ac8000a60) at pthread_mutex_unlock.c:290
#2  0x00007f8aecb4a5d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8aecb0f16e in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8af5b32426 in QEventDispatcherGlib::processEvents (this=0x7f8ac80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f8af5b01c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f8af5b01ed7 in QEventLoop::exec (this=0x7f8ace709dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f8af5a00fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f8af5ae19ff in QInotifyFileSystemWatcherEngine::run (this=0x2092b50) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f8af5a03fcb in QThreadPrivate::start (arg=0x2092b50) at thread/qthread_unix.cpp:298
#10 0x00007f8aed413e9a in start_thread (arg=0x7f8ace70a700) at pthread_create.c:308
#11 0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f8ac7304700 (LWP 1579)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f8af28e6222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f8af28e6259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f8aed413e9a in start_thread (arg=0x7f8ac7304700) at pthread_create.c:308
#4  0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f8abffff700 (LWP 1584)):
#0  0x00007f8af8960b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8aecb0f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8aecb0f49a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8ac4b4d406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f8aecb309e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8aed413e9a in start_thread (arg=0x7f8abffff700) at pthread_create.c:308
#6  0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f8abf7fe700 (LWP 4725)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f8af3fcddec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f8af3fcdf19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f8aed413e9a in start_thread (arg=0x7f8abf7fe700) at pthread_create.c:308
#4  0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8ac4864700 (LWP 4726)):
#0  0x00007f8af8960b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f8aecb0f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8aecb0f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8af5b32426 in QEventDispatcherGlib::processEvents (this=0x7f8aac00c640, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f8af5b01c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f8af5b01ed7 in QEventLoop::exec (this=0x7f8ac4863e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f8af5a00fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f8af5a03fcb in QThreadPrivate::start (arg=0x3e4df00) at thread/qthread_unix.cpp:298
#8  0x00007f8aed413e9a in start_thread (arg=0x7f8ac4864700) at pthread_create.c:308
#9  0x00007f8af896c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8af909b780 (LWP 1574)):
[KCrash Handler]
#6  0x00007f8af853f775 in mouseReleaseEvent (event=0x7fff0e96e480, this=0x4dec570) at ../../plasma/widgets/iconwidget.cpp:1442
#7  Plasma::IconWidget::mouseReleaseEvent (this=0x4dec570, event=0x7fff0e96e480) at ../../plasma/widgets/iconwidget.cpp:1415
#8  0x00007f8af546b453 in QGraphicsItem::sceneEvent (this=0x4dec580, event=0x7fff0e96e480) at graphicsview/qgraphicsitem.cpp:6741
#9  0x00007f8af5493c4a in QGraphicsScenePrivate::sendMouseEvent (this=0x14d2ab0, mouseEvent=0x7fff0e96e480) at graphicsview/qgraphicsscene.cpp:1295
#10 0x00007f8af5494635 in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7fff0e96e480) at graphicsview/qgraphicsscene.cpp:4128
#11 0x00007f8af54a279f in QGraphicsScene::event (this=0x1606e90, event=0x7fff0e96e480) at graphicsview/qgraphicsscene.cpp:3458
#12 0x00007f8af4e85894 in notify_helper (e=0x7fff0e96e480, receiver=0x1606e90, this=0x14ccdd0) at kernel/qapplication.cpp:4559
#13 QApplicationPrivate::notify_helper (this=0x14ccdd0, receiver=0x1606e90, e=0x7fff0e96e480) at kernel/qapplication.cpp:4531
#14 0x00007f8af4e8a713 in QApplication::notify (this=0x14c2aa0, receiver=0x1606e90, e=0x7fff0e96e480) at kernel/qapplication.cpp:4420
#15 0x00007f8af67e69e6 in KApplication::notify (this=0x14c2aa0, receiver=0x1606e90, event=0x7fff0e96e480) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f8af5b02e9c in QCoreApplication::notifyInternal (this=0x14c2aa0, receiver=0x1606e90, event=0x7fff0e96e480) at kernel/qcoreapplication.cpp:876
#17 0x00007f8af54bddd6 in QGraphicsView::mouseReleaseEvent (this=0x267b210, event=0x7fff0e96ee40) at graphicsview/qgraphicsview.cpp:3338
#18 0x00007f8af4ed6144 in QWidget::event (this=0x267b210, event=0x7fff0e96ee40) at kernel/qwidget.cpp:8362
#19 0x00007f8af52963b6 in QFrame::event (this=0x267b210, e=0x7fff0e96ee40) at widgets/qframe.cpp:557
#20 0x00007f8af54c0b2b in QGraphicsView::viewportEvent (this=0x267b210, event=0x7fff0e96ee40) at graphicsview/qgraphicsview.cpp:2866
#21 0x00007f8af5b03028 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x267d4b0, event=0x7fff0e96ee40) at kernel/qcoreapplication.cpp:986
#22 0x00007f8af4e8585f in notify_helper (e=0x7fff0e96ee40, receiver=0x267d4b0, this=0x14ccdd0) at kernel/qapplication.cpp:4555
#23 QApplicationPrivate::notify_helper (this=0x14ccdd0, receiver=0x267d4b0, e=0x7fff0e96ee40) at kernel/qapplication.cpp:4531
#24 0x00007f8af4e8b0bf in QApplication::notify (this=<optimized out>, receiver=0x267d4b0, e=0x7fff0e96ee40) at kernel/qapplication.cpp:4102
#25 0x00007f8af67e69e6 in KApplication::notify (this=0x14c2aa0, receiver=0x267d4b0, event=0x7fff0e96ee40) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007f8af5b02e9c in QCoreApplication::notifyInternal (this=0x14c2aa0, receiver=0x267d4b0, event=0x7fff0e96ee40) at kernel/qcoreapplication.cpp:876
#27 0x00007f8af4e86862 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QApplicationPrivate::sendMouseEvent (receiver=0x267d4b0, event=0x7fff0e96ee40, alienWidget=0x267d4b0, nativeWidget=0x267b210, buttonDown=0x267d4b0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#29 0x00007f8af4f05bf5 in QETWidget::translateMouseEvent (this=0x267b210, event=<optimized out>) at kernel/qapplication_x11.cpp:4617
#30 0x00007f8af4f04bae in QApplication::x11ProcessEvent (this=0x14c2aa0, event=0x7fff0e96f710) at kernel/qapplication_x11.cpp:3732
#31 0x00007f8af4f2e0d2 in x11EventSourceDispatch (s=0x14cf670, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0x00007f8aecb0ed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f8aecb0f0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f8aecb0f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f8af5b323bf in QEventDispatcherGlib::processEvents (this=0x1455ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x00007f8af4f2dd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f8af5b01c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f8af5b01ed7 in QEventLoop::exec (this=0x7fff0e96fab0, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007f8af5b06f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#40 0x00007f8af8c78a13 in kdemain (argc=1, argv=0x7fff0e96fe98) at ../../../../plasma/desktop/shell/main.cpp:120
#41 0x00007f8af889b76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff0e96fe98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0e96fe88) at libc-start.c:226
#42 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 298456.

Possible duplicates by query: bug 304572, bug 304251, bug 303689, bug 302315, bug 301890.

Reported using DrKonqi