Bug 252309

Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-22-generic x86_64
Distribution: Ubuntu maverick (development branch)

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

adding message indicator applet to the application bar, plasma desktop crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Spazio di lavoro di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7ff73c6717a0 (LWP 1855))]

Thread 3 (Thread 0x7ff7112f0710 (LWP 2034)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007ff7112ef990 in ?? ()
#2  0x00007fff7a9ac852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7ff713fff710 (LWP 9824)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:212
#1  0x00007ff739515da2 in wait (this=<value optimized out>, mutex=0x7ff7140020d0, time=30000) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x7ff7140020d0, time=30000) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ff73950ada2 in QThreadPoolThread::run (this=0x7ff7140207b0) at concurrent/qthreadpool.cpp:140
#4  0x00007ff73951527e in QThreadPrivate::start (arg=0x7ff7140207b0) at thread/qthread_unix.cpp:266
#5  0x00007ff7341c7953 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007ff73928a971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#7  0x00007ff73bf8c92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff73c6717a0 (LWP 1855)):
[KCrash Handler]
#6  0x00007ff73961baf5 in QMetaObject::changeGuard (ptr=0x5140cf0, o=0x4e974b0) at kernel/qobject.cpp:455
#7  0x00007ff738d90533 in operator= (this=0x5140b10, event=0x7fff7a885230) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x5140b10, event=0x7fff7a885230) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x00007ff738d7dd64 in QGraphicsItem::sceneEvent (this=0x52d2ca0, event=0x0) at graphicsview/qgraphicsitem.cpp:6669
#10 0x00007ff738d95aa8 in QGraphicsScenePrivate::sendMouseEvent (this=0x1fb97c0, mouseEvent=0x7fff7a885230) at graphicsview/qgraphicsscene.cpp:1285
#11 0x00007ff738d990d5 in QGraphicsScene::mouseReleaseEvent (this=<value optimized out>, mouseEvent=0x7fff7a885230) at graphicsview/qgraphicsscene.cpp:4111
#12 0x00007ff738da9f9f in QGraphicsScene::event (this=0x1fb4170, event=0x7fff7a885230) at graphicsview/qgraphicsscene.cpp:3444
#13 0x00007ff738752fdc in QApplicationPrivate::notify_helper (this=0x1ea3db0, receiver=0x1fb4170, e=0x7fff7a885230) at kernel/qapplication.cpp:4396
#14 0x00007ff738758aed in QApplication::notify (this=0x1e87c00, receiver=0x1fb4170, e=0x7fff7a885230) at kernel/qapplication.cpp:4277
#15 0x00007ff73a2a4156 in KApplication::notify (this=0x1e87c00, receiver=0x1fb4170, event=0x7fff7a885230) at ../../kdeui/kernel/kapplication.cpp:310
#16 0x00007ff739608cdc in QCoreApplication::notifyInternal (this=0x1e87c00, receiver=0x1fb4170, event=0x7fff7a885230) at kernel/qcoreapplication.cpp:732
#17 0x00007ff738dc8255 in QGraphicsView::mouseReleaseEvent (this=0x293ee90, event=0x7fff7a885c70) at graphicsview/qgraphicsview.cpp:3334
#18 0x00007ff7387a904e in QWidget::event (this=0x293ee90, event=0x7fff7a885c70) at kernel/qwidget.cpp:8187
#19 0x00007ff738b743b6 in QFrame::event (this=0x293ee90, e=0x7fff7a885c70) at widgets/qframe.cpp:557
#20 0x00007ff738dc662b in QGraphicsView::viewportEvent (this=0x293ee90, event=0x7fff7a885c70) at graphicsview/qgraphicsview.cpp:2862
#21 0x00007ff739608507 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2cd3550, event=0x7fff7a885c70) at kernel/qcoreapplication.cpp:847
#22 0x00007ff738752fac in QApplicationPrivate::notify_helper (this=0x1ea3db0, receiver=0x2cd3550, e=0x7fff7a885c70) at kernel/qapplication.cpp:4392
#23 0x00007ff73875930e in QApplication::notify (this=0x1e87c00, receiver=0x2cd3550, e=0x7fff7a885c70) at kernel/qapplication.cpp:3959
#24 0x00007ff73a2a4156 in KApplication::notify (this=0x1e87c00, receiver=0x2cd3550, event=0x7fff7a885c70) at ../../kdeui/kernel/kapplication.cpp:310
#25 0x00007ff739608cdc in QCoreApplication::notifyInternal (this=0x1e87c00, receiver=0x2cd3550, event=0x7fff7a885c70) at kernel/qcoreapplication.cpp:732
#26 0x00007ff738757dbe in sendEvent (receiver=0x2cd3550, event=0x7fff7a885c70, alienWidget=0x2cd3550, nativeWidget=0x293ee90, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QApplicationPrivate::sendMouseEvent (receiver=0x2cd3550, event=0x7fff7a885c70, alienWidget=0x2cd3550, nativeWidget=0x293ee90, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#28 0x00007ff7387db345 in QETWidget::translateMouseEvent (this=0x293ee90, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#29 0x00007ff7387d9c5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff7a886590) at kernel/qapplication_x11.cpp:3536
#30 0x00007ff738806102 in x11EventSourceDispatch (s=0x1ea76a0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007ff730b677e2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x00007ff730b6b748 in ?? () from /lib/libglib-2.0.so.0
#33 0x00007ff730b6b8fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x00007ff739635193 in QEventDispatcherGlib::processEvents (this=0x1e32070, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#35 0x00007ff738805a6e in QGuiEventDispatcherGlib::processEvents (this=0x7ff73441e120, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007ff739607a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#37 0x00007ff739607dec in QEventLoop::exec (this=0x7fff7a8868c0, flags=) at kernel/qeventloop.cpp:201
#38 0x00007ff73960bebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#39 0x00007ff73c263a56 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#40 0x00007ff73bec4d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff7a886c88) at libc-start.c:226
#41 0x0000000000400669 in _start ()

Possible duplicates by query: bug 251023.

Reported using DrKonqi