Bug 258005

Application: plasma-desktop (0.3)
KDE Platform Version: 4.5.3 (KDE 4.5.3)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-23-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
plasma-desktop crashed after login

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 0x7f0e5cc247a0 (LWP 2081))]

Thread 2 (Thread 0x7f0e310e3700 (LWP 2136)):
#0  0x00007f0e5c339203 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0e50b10009 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f0e50b1045c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f0e597e61e6 in QEventDispatcherGlib::processEvents (this=0x24dbad0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#4  0x00007f0e597b8a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f0e597b8dec in QEventLoop::exec (this=0x7f0e310e2d70, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f0e596c32fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f0e597985f8 in QInotifyFileSystemWatcherEngine::run (this=0x24db190) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0e596c627e in QThreadPrivate::start (arg=0x24db190) at thread/qthread_unix.cpp:266
#9  0x00007f0e5943b971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007f0e5c34592d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0e5cc247a0 (LWP 2081)):
[KCrash Handler]
#6  0x00007f0e597ccaf5 in QMetaObject::changeGuard (ptr=0x3abea30, o=0x38691e0) at kernel/qobject.cpp:455
#7  0x00007f0e58f41783 in operator= (this=0x3abe850, event=0x7fff1be8d460) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:68
#8  QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent (this=0x3abe850, event=0x7fff1be8d460) at graphicsview/qgraphicsproxywidget.cpp:284
#9  0x00007f0e58f2efb4 in QGraphicsItem::sceneEvent (this=0x3ac6180, event=0x20) at graphicsview/qgraphicsitem.cpp:6669
#10 0x00007f0e58f46cf8 in QGraphicsScenePrivate::sendMouseEvent (this=0x1977990, mouseEvent=0x7fff1be8d460) at graphicsview/qgraphicsscene.cpp:1285
#11 0x00007f0e58f4a325 in QGraphicsScene::mouseReleaseEvent (this=<value optimized out>, mouseEvent=0x7fff1be8d460) at graphicsview/qgraphicsscene.cpp:4111
#12 0x00007f0e58f5b1ef in QGraphicsScene::event (this=0x1960eb0, event=0x7fff1be8d460) at graphicsview/qgraphicsscene.cpp:3444
#13 0x00007f0e58903fdc in QApplicationPrivate::notify_helper (this=0x18d4420, receiver=0x1960eb0, e=0x7fff1be8d460) at kernel/qapplication.cpp:4396
#14 0x00007f0e58909aed in QApplication::notify (this=0x18b5870, receiver=0x1960eb0, e=0x7fff1be8d460) at kernel/qapplication.cpp:4277
#15 0x00007f0e5a456526 in KApplication::notify (this=0x18b5870, receiver=0x1960eb0, event=0x7fff1be8d460) at ../../kdeui/kernel/kapplication.cpp:310
#16 0x00007f0e597b9cdc in QCoreApplication::notifyInternal (this=0x18b5870, receiver=0x1960eb0, event=0x7fff1be8d460) at kernel/qcoreapplication.cpp:732
#17 0x00007f0e58f794a5 in QGraphicsView::mouseReleaseEvent (this=0x23be9d0, event=0x7fff1be8dea0) at graphicsview/qgraphicsview.cpp:3334
#18 0x00007f0e5895a04e in QWidget::event (this=0x23be9d0, event=0x7fff1be8dea0) at kernel/qwidget.cpp:8187
#19 0x00007f0e58d255e6 in QFrame::event (this=0x23be9d0, e=0x7fff1be8dea0) at widgets/qframe.cpp:557
#20 0x00007f0e58f7787b in QGraphicsView::viewportEvent (this=0x23be9d0, event=0x7fff1be8dea0) at graphicsview/qgraphicsview.cpp:2862
#21 0x00007f0e597b9507 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1e10d20, event=0x7fff1be8dea0) at kernel/qcoreapplication.cpp:847
#22 0x00007f0e58903fac in QApplicationPrivate::notify_helper (this=0x18d4420, receiver=0x1e10d20, e=0x7fff1be8dea0) at kernel/qapplication.cpp:4392
#23 0x00007f0e5890a30e in QApplication::notify (this=0x18b5870, receiver=0x1e10d20, e=0x7fff1be8dea0) at kernel/qapplication.cpp:3959
#24 0x00007f0e5a456526 in KApplication::notify (this=0x18b5870, receiver=0x1e10d20, event=0x7fff1be8dea0) at ../../kdeui/kernel/kapplication.cpp:310
#25 0x00007f0e597b9cdc in QCoreApplication::notifyInternal (this=0x18b5870, receiver=0x1e10d20, event=0x7fff1be8dea0) at kernel/qcoreapplication.cpp:732
#26 0x00007f0e58908dbe in sendEvent (receiver=0x1e10d20, event=0x7fff1be8dea0, alienWidget=0x1e10d20, nativeWidget=0x23be9d0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QApplicationPrivate::sendMouseEvent (receiver=0x1e10d20, event=0x7fff1be8dea0, alienWidget=0x1e10d20, nativeWidget=0x23be9d0, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#28 0x00007f0e5898c345 in QETWidget::translateMouseEvent (this=0x23be9d0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#29 0x00007f0e5898ac5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff1be8e7c0) at kernel/qapplication_x11.cpp:3536
#30 0x00007f0e589b70e2 in x11EventSourceDispatch (s=0x18d7c60, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x00007f0e50b0c342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x00007f0e50b102a8 in ?? () from /lib/libglib-2.0.so.0
#33 0x00007f0e50b1045c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x00007f0e597e6193 in QEventDispatcherGlib::processEvents (this=0x189a070, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#35 0x00007f0e589b6a4e in QGuiEventDispatcherGlib::processEvents (this=0x7f0e5c5dde40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007f0e597b8a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#37 0x00007f0e597b8dec in QEventLoop::exec (this=0x7fff1be8eaf0, flags=) at kernel/qeventloop.cpp:201
#38 0x00007f0e597bcebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#39 0x00007f0e5c61cdc3 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#40 0x00007f0e5c27dd8e 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=0x7fff1be8eec8) at libc-start.c:226
#41 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 251023.

Possible duplicates by query: bug 257217, bug 252309, bug 251023.

Reported using DrKonqi