Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
When I have tried to add a new Default Panel from the tool box in the upper right corner of the screen it crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5de1b247a0 (LWP 1540))]

Thread 9 (Thread 0x7f5dbf05f700 (LWP 1541)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f5dbf05ead0 in ?? ()
#2  0x00007fffd09ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 8 (Thread 0x7f5dbc5d0700 (LWP 1542)):
#0  0x00007f5de1400773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5dd598af68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5dd598b429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5dde5f1f3e in QEventDispatcherGlib::processEvents (this=0x201f990, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f5dde5c5cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5dde5c5ef7 in QEventLoop::exec (this=0x7f5dbc5cfdb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f5dde4dd27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f5dde5a8cbf in QInotifyFileSystemWatcherEngine::run (this=0x201b6f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5dde4dfd05 in QThreadPrivate::start (arg=0x201b6f0) at thread/qthread_unix.cpp:331
#9  0x00007f5dd6497efc in start_thread (arg=0x7f5dbc5d0700) at pthread_create.c:304
#10 0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f5db2833700 (LWP 1550)):
#0  0x00007f5de1400773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5dd598af68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5dd598b792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5db3311516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f5dd59b02b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5dd6497efc in start_thread (arg=0x7f5db2833700) at pthread_create.c:304
#6  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f5db1c31700 (LWP 1996)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5dde4e01ab in wait (time=18446744073709551615, this=0x1e6e710) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e3e060, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5dda2da864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ef9510, th=0x22ab430) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5dda2dce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e68450, th=0x22ab430) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5dda2dbccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5db1c30e00, parent=0x1ef9510, th=0x22ab430) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5dda2dbd5b in ThreadWeaver::Thread::run (this=0x22ab430) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5dde4dfd05 in QThreadPrivate::start (arg=0x22ab430) at thread/qthread_unix.cpp:331
#8  0x00007f5dd6497efc in start_thread (arg=0x7f5db1c31700) at pthread_create.c:304
#9  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f5db9074700 (LWP 1997)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5dde4e01ab in wait (time=18446744073709551615, this=0x1e6e710) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e3e060, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5dda2da864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ef9510, th=0x7f5db4007780) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5dda2dce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e68450, th=0x7f5db4007780) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5dda2dbccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5db9073e00, parent=0x1ef9510, th=0x7f5db4007780) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5dda2dbd5b in ThreadWeaver::Thread::run (this=0x7f5db4007780) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5dde4dfd05 in QThreadPrivate::start (arg=0x7f5db4007780) at thread/qthread_unix.cpp:331
#8  0x00007f5dd6497efc in start_thread (arg=0x7f5db9074700) at pthread_create.c:304
#9  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f5db3034700 (LWP 1998)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5dde4e01ab in wait (time=18446744073709551615, this=0x1e6e710) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e3e060, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5dda2da864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ef9510, th=0x3014fe0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5dda2dce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e68450, th=0x3014fe0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5dda2dbccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5db3033e00, parent=0x1ef9510, th=0x3014fe0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5dda2dbd5b in ThreadWeaver::Thread::run (this=0x3014fe0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5dde4dfd05 in QThreadPrivate::start (arg=0x3014fe0) at thread/qthread_unix.cpp:331
#8  0x00007f5dd6497efc in start_thread (arg=0x7f5db3034700) at pthread_create.c:304
#9  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f5daf9d6700 (LWP 1999)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5dde4e01ab in wait (time=18446744073709551615, this=0x1e6e710) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e3e060, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5dda2da864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ef9510, th=0x3375f50) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5dda2dce0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e68450, th=0x3375f50) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5dda2dbccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5daf9d5e00, parent=0x1ef9510, th=0x3375f50) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5dda2dbd5b in ThreadWeaver::Thread::run (this=0x3375f50) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5dde4dfd05 in QThreadPrivate::start (arg=0x3375f50) at thread/qthread_unix.cpp:331
#8  0x00007f5dd6497efc in start_thread (arg=0x7f5daf9d6700) at pthread_create.c:304
#9  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5daed59700 (LWP 5871)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5ddb5f6fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f5ddb5f7019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f5dd6497efc in start_thread (arg=0x7f5daed59700) at pthread_create.c:304
#4  0x00007f5de140c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5de1b247a0 (LWP 1540)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x740065006e002e) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x00007f5dddf9e591 in QGridLayoutItem::hasDynamicConstraint (this=<optimized out>) at graphicsview/qgridlayoutengine.cpp:576
#8  0x00007f5dddf9f6b2 in ensureDynamicConstraint (this=0x2154ce0) at graphicsview/qgridlayoutengine.cpp:1657
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x2154ce0) at graphicsview/qgridlayoutengine.cpp:1652
#10 0x00007f5dddf9f769 in QGridLayoutEngine::hasDynamicConstraint (this=0x2154ce0) at graphicsview/qgridlayoutengine.cpp:1677
#11 0x00007f5dddfa3a98 in QGridLayoutEngine::sizeHint (this=0x2154ce0, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1134
#12 0x00007f5dddf2d01a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:656
#13 0x00007f5dddf57bd9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x2154bd0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x00007f5dddf58491 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#15 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:810
#16 0x00007f5dddf95231 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x00007f5dddf57caf in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x2154ae0, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x00007f5dddf58491 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:818
#19 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:810
#20 0x00007f5dc7793905 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x41b7480) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007f5dc77955d9 in SystemTray::TaskArea::addWidgetForTask (this=0x41b7480, task=0x4242590) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007f5dc7795926 in SystemTray::TaskArea::addTask (this=0x41b7480, task=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x00007f5dc7796124 in SystemTray::TaskArea::qt_metacall (this=0x41b7480, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffd08bf370) at ./taskarea.moc:89
#24 0x00007f5dde5d9eba in QMetaObject::activate (sender=0x18cd4c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffd08bf370) at kernel/qobject.cpp:3278
#25 0x00007f5dc777887f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x4242590) at ./manager.moc:99
#26 0x00007f5dc7778a95 in SystemTray::Manager::addTask (this=0x18cd4c0, task=0x4242590) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:87
#27 0x00007f5dc7778be4 in SystemTray::Manager::qt_metacall (this=0x18cd4c0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffd08bf4e0) at ./manager.moc:86
#28 0x00007f5dde5d9eba in QMetaObject::activate (sender=0x18cd080, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffd08bf4e0) at kernel/qobject.cpp:3278
#29 0x00007f5dc777908f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x4242590) at ./protocol.moc:91
#30 0x00007f5dc7780178 in SystemTray::PlasmoidProtocol::addApplet (this=0x18cd080, appletName=..., id=<optimized out>, parent=0x39950b0) at ../../../../../plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#31 0x00007f5dc77786d6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at ../../../../../plasma/generic/applets/systemtray/core/manager.cpp:110
#32 0x00007f5dc778aa30 in SystemTray::Applet::checkDefaultApplets (this=0x39950b0) at ../../../../../plasma/generic/applets/systemtray/ui/applet.cpp:737
#33 0x00007f5dc778ba4c in SystemTray::Applet::qt_metacall (this=0x39950b0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x34b09d0) at ./applet.moc:91
#34 0x00007f5dde5dda5e in QObject::event (this=0x39950b0, e=<optimized out>) at kernel/qobject.cpp:1217
#35 0x00007f5dddf9589b in QGraphicsWidget::event (this=0x39950b0, event=0x3f3d1d0) at graphicsview/qgraphicswidget.cpp:1455
#36 0x00007f5ddd977424 in notify_helper (e=0x3f3d1d0, receiver=0x39950b0, this=0x140cb70) at kernel/qapplication.cpp:4486
#37 QApplicationPrivate::notify_helper (this=0x140cb70, receiver=0x39950b0, e=0x3f3d1d0) at kernel/qapplication.cpp:4458
#38 0x00007f5ddd97c291 in QApplication::notify (this=0x1400310, receiver=0x39950b0, e=0x3f3d1d0) at kernel/qapplication.cpp:4365
#39 0x00007f5ddf275126 in KApplication::notify (this=0x1400310, receiver=0x39950b0, event=0x3f3d1d0) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f5dde5c6afc in QCoreApplication::notifyInternal (this=0x1400310, receiver=0x39950b0, event=0x3f3d1d0) at kernel/qcoreapplication.cpp:787
#41 0x00007f5dde5ca51f in sendEvent (event=0x3f3d1d0, receiver=0x39950b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x13a0430) at kernel/qcoreapplication.cpp:1428
#43 0x00007f5dde5f1a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#45 0x00007f5dd598aa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f5dd598b258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f5dd598b429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f5dde5f1ed6 in QEventDispatcherGlib::processEvents (this=0x13a1f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#49 0x00007f5ddda1f07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f5dde5c5cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f5dde5c5ef7 in QEventLoop::exec (this=0x7fffd08bff40, flags=...) at kernel/qeventloop.cpp:201
#52 0x00007f5dde5ca789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#53 0x00007f5de170b1a3 in kdemain (argc=1, argv=0x7fffd08c0328) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007f5de134c30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffd08c0328, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd08c0318) at libc-start.c:226
#55 0x0000000000400671 in _start ()

Possible duplicates by query: bug 290919, bug 290878, bug 290560, bug 290365, bug 290092.

Reported using DrKonqi