Application: plasma-desktop (0.4)
KDE Platform Version: 4.5.90 (4.6 RC1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-24-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
Logging out, shutting down, rebooting. Any function that would restart the machine.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9989b4c780 (LWP 1760))]

Thread 4 (Thread 0x7f9960029700 (LWP 1764)):
#0  0x00007f997eae9c9d in __pthread_mutex_unlock_usercnt (mutex=0x2320a78) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x2320a78) at pthread_mutex_unlock.c:290
#2  0x00007f997e433b51 in g_main_context_prepare (context=0x2320a70, priority=<value optimized out>) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2497
#3  0x00007f997e433e78 in g_main_context_iterate (context=0x2320a70, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2760
#4  0x00007f997e43445c in g_main_context_iteration (context=0x2320a70, may_block=1) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2843
#5  0x00007f99868d91e6 in QEventDispatcherGlib::processEvents (this=0x221dbf0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#6  0x00007f99868aba02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#7  0x00007f99868abdec in QEventLoop::exec (this=0x7f9960028d90, flags=) at kernel/qeventloop.cpp:201
#8  0x00007f99867b62fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#9  0x00007f998688b5f8 in QInotifyFileSystemWatcherEngine::run (this=0x22f3da0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f99867b927e in QThreadPrivate::start (arg=0x22f3da0) at thread/qthread_unix.cpp:266
#11 0x00007f997eae6971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#12 0x00007f998955f92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f995e03e700 (LWP 1765)):
#0  0x00007f99868db201 in QTimerInfoList::updateCurrentTime (this=0x23e4b70) at kernel/qeventdispatcher_unix.cpp:339
#1  0x00007f99868db225 in QTimerInfoList::timerWait (this=0x7f995e03dac0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#2  0x00007f99868d93dd in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7f995e03dbfc) at kernel/qeventdispatcher_glib.cpp:136
#3  0x00007f99868d9485 in timerSourcePrepare (source=0x7f995e03dac0, timeout=0x7f995e03dac0) at kernel/qeventdispatcher_glib.cpp:169
#4  0x00007f997e433a11 in g_main_context_prepare (context=0x23f4980, priority=<value optimized out>) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2469
#5  0x00007f997e433e78 in g_main_context_iterate (context=0x23f4980, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2760
#6  0x00007f997e43445c in g_main_context_iteration (context=0x23f4980, may_block=1) at /build/buildd/glib2.0-2.26.1/glib/gmain.c:2843
#7  0x00007f99868d91e6 in QEventDispatcherGlib::processEvents (this=0x23f4890, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#8  0x00007f99868aba02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#9  0x00007f99868abdec in QEventLoop::exec (this=0x7f995e03dd90, flags=) at kernel/qeventloop.cpp:201
#10 0x00007f99867b62fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#11 0x00007f998688b5f8 in QInotifyFileSystemWatcherEngine::run (this=0x23f60c0) at io/qfilesystemwatcher_inotify.cpp:248
#12 0x00007f99867b927e in QThreadPrivate::start (arg=0x23f60c0) at thread/qthread_unix.cpp:266
#13 0x00007f997eae6971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#14 0x00007f998955f92d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f995d83d700 (LWP 1766)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f995d83ca90 in ?? ()
#2  0x00007fff93dff852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7f9989b4c780 (LWP 1760)):
[KCrash Handler]
#6  0x00007f998624b694 in QGraphicsLayoutItem::setParentLayoutItem (this=0x1bbc500, parent=0x0) at graphicsview/qgraphicslayoutitem.cpp:793
#7  0x00007f998624cc8a in QGraphicsLinearLayout::removeAt (this=0x1bbcb60, index=<value optimized out>) at graphicsview/qgraphicslinearlayout.cpp:334
#8  0x00007f998624cd3c in QGraphicsLinearLayout::~QGraphicsLinearLayout (this=0x1bbcb60, __in_chrg=<value optimized out>) at graphicsview/qgraphicslinearlayout.cpp:212
#9  0x00007f998624cd60 in QGraphicsLinearLayout::~QGraphicsLinearLayout (this=0x1bbd1c0, __in_chrg=<value optimized out>) at graphicsview/qgraphicslinearlayout.cpp:216
#10 0x00007f9986292f94 in QGraphicsWidget::~QGraphicsWidget (this=0x1b87150, __in_chrg=<value optimized out>) at graphicsview/qgraphicswidget.cpp:272
#11 0x00007f99891707c5 in Plasma::TabBar::~TabBar (this=0x1b87150, __in_chrg=<value optimized out>) at ../../plasma/widgets/tabbar.cpp:272
#12 0x00007f99862351df in QGraphicsItem::~QGraphicsItem (this=0x28435c0, __in_chrg=<value optimized out>) at graphicsview/qgraphicsitem.cpp:1462
#13 0x00007f9986293090 in ~QGraphicsObject (this=0x28435b0, __in_chrg=<value optimized out>) at ../../include/QtGui/../../src/gui/graphicsview/qgraphicsitem.h:547
#14 QGraphicsWidget::~QGraphicsWidget (this=0x28435b0, __in_chrg=<value optimized out>) at graphicsview/qgraphicswidget.cpp:277
#15 0x00007f996ccb8be5 in BackgroundWidget::~BackgroundWidget (this=0x28435b0, __in_chrg=<value optimized out>) at ../../../applets/weather/weatherapplet.cpp:63
#16 0x00007f99862351df in QGraphicsItem::~QGraphicsItem (this=0x1b71e80, __in_chrg=<value optimized out>) at graphicsview/qgraphicsitem.cpp:1462
#17 0x00007f9986293090 in ~QGraphicsObject (this=0x1b71e70, __in_chrg=<value optimized out>) at ../../include/QtGui/../../src/gui/graphicsview/qgraphicsitem.h:547
#18 QGraphicsWidget::~QGraphicsWidget (this=0x1b71e70, __in_chrg=<value optimized out>) at graphicsview/qgraphicswidget.cpp:277
#19 0x00007f9989054edb in Plasma::Applet::~Applet (this=0x1b71e70, __in_chrg=<value optimized out>) at ../../plasma/applet.cpp:224
#20 0x00007f996ccac597 in WeatherApplet::~WeatherApplet (this=0x1b71e70, __in_chrg=<value optimized out>) at ../../../applets/weather/weatherapplet.cpp:207
#21 0x00007f998907362f in qDeleteAll<QList<Plasma::Applet*>::const_iterator> (this=0x1b3e1b0, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#22 qDeleteAll<QList<Plasma::Applet*> > (this=0x1b3e1b0, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#23 ~ContainmentPrivate (this=0x1b3e1b0, __in_chrg=<value optimized out>) at ../../plasma/private/containment_p.h:69
#24 Plasma::Containment::~Containment (this=0x1b3e1b0, __in_chrg=<value optimized out>) at ../../plasma/containment.cpp:148
#25 0x00007f996d9861e9 in DefaultDesktop::~DefaultDesktop (this=0x1bbc500, __in_chrg=<value optimized out>) at ../../../../../plasma/desktop/containments/desktop/desktop.cpp:55
#26 0x00007f998908358f in qDeleteAll<QList<Plasma::Containment*>::const_iterator> (this=0x15e1b70, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#27 qDeleteAll<QList<Plasma::Containment*> > (this=0x15e1b70, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#28 ~CoronaPrivate (this=0x15e1b70, __in_chrg=<value optimized out>) at ../../plasma/corona.cpp:84
#29 Plasma::Corona::~Corona (this=0x15e1b70, __in_chrg=<value optimized out>) at ../../plasma/corona.cpp:315
#30 0x00007f99898307f4 in DesktopCorona::~DesktopCorona (this=0x15e1b70, __in_chrg=<value optimized out>) at ../../../../plasma/desktop/shell/desktopcorona.cpp:73
#31 0x00007f9989854606 in PlasmaApp::cleanup (this=0x151cd90) at ../../../../plasma/desktop/shell/plasmaapp.cpp:368
#32 0x00007f998985a8ed in PlasmaApp::qt_metacall (this=0x151cd90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff93d324e0) at ./plasmaapp.moc:157
#33 0x00007f99868c4b27 in QMetaObject::activate (sender=0x151cd90, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3280
#34 0x00007f99868afee3 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1014
#35 0x00007f998983dc83 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:118
#36 0x00007f9989497d8e 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=0x7fff93d32908) at libc-start.c:226
#37 0x0000000000400669 in _start ()

Possible duplicates by query: bug 261348, bug 260896, bug 260674, bug 259520, bug 259133.

Reported using DrKonqi