Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.8.0
Operating System: Linux 3.1.2-1.fc16.x86_64 x86_64

-- Information about the crash:
I was trying to add panel on the desktop by using tool box.
It always crashes when i try to do so.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fb457af9840 (LWP 1457))]

Thread 3 (Thread 0x7fb44a161700 (LWP 1458)):
#0  0x0000003a6a2e6373 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003a6c244f88 in g_main_context_poll (n_fds=1, fds=0x7fb444002400, priority=<optimized out>, timeout=-1, context=0x7fb4440009a0) at gmain.c:3386
#2  g_main_context_iterate (context=0x7fb4440009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3068
#3  0x0000003a6c24544c in g_main_context_iteration (context=0x7fb4440009a0, may_block=1) at gmain.c:3136
#4  0x0000003a757a6896 in QEventDispatcherGlib::processEvents (this=0x7fb4440008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x0000003a75776c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003a75776ed7 in QEventLoop::exec (this=0x7fb44a160d10, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003a75678ad7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x0000003a75756a5f in QInotifyFileSystemWatcherEngine::run (this=0x2b5a820) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0000003a7567bb1b in QThreadPrivate::start (arg=0x2b5a820) at thread/qthread_unix.cpp:298
#10 0x0000003a6aa07d90 in start_thread (arg=0x7fb44a161700) at pthread_create.c:309
#11 0x0000003a6a2eed0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7fb4433b5700 (LWP 2877)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x0000003a8bf84e52 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3a8c27e240) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x0000003a8bf84e89 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x0000003a6aa07d90 in start_thread (arg=0x7fb4433b5700) at pthread_create.c:309
#4  0x0000003a6a2eed0d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fb457af9840 (LWP 1457)):
[KCrash Handler]
#6  QGraphicsLayoutItemPrivate::hasHeightForWidth (this=0x0) at graphicsview/qgraphicslayoutitem.cpp:280
#7  0x0000003a78202e71 in QGridLayoutItem::hasDynamicConstraint (this=0x5ce54d0) at graphicsview/qgridlayoutengine.cpp:576
#8  0x0000003a78203fd2 in ensureDynamicConstraint (this=0x5c96240) at graphicsview/qgridlayoutengine.cpp:1666
#9  QGridLayoutEngine::ensureDynamicConstraint (this=0x5c96240) at graphicsview/qgridlayoutengine.cpp:1661
#10 0x0000003a78204089 in QGridLayoutEngine::hasDynamicConstraint (this=0x5c96240) at graphicsview/qgridlayoutengine.cpp:1686
#11 0x0000003a78207fd8 in QGridLayoutEngine::sizeHint (this=0x5c96240, styleInfo=..., which=Qt::MaximumSize, constraint=...) at graphicsview/qgridlayoutengine.cpp:1143
#12 0x0000003a78191c6a in QGraphicsGridLayout::sizeHint (this=<optimized out>, which=Qt::MaximumSize, constraint=...) at graphicsview/qgraphicsgridlayout.cpp:670
#13 0x0000003a781bc6c9 in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x5c96130, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:169
#14 0x0000003a781bcf71 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:813
#15 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:805
#16 0x0000003a781f98b1 in QGraphicsWidget::sizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicswidget.cpp:743
#17 0x0000003a781bc79f in QGraphicsLayoutItemPrivate::effectiveSizeHints (this=0x5f06700, constraint=...) at graphicsview/qgraphicslayoutitem.cpp:175
#18 0x0000003a781bcf71 in effectiveSizeHint (constraint=<optimized out>, which=<optimized out>, this=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:813
#19 QGraphicsLayoutItem::effectiveSizeHint (this=<optimized out>, which=<optimized out>, constraint=<optimized out>) at graphicsview/qgraphicslayoutitem.cpp:805
#20 0x00007fb448441af5 in SystemTray::TaskArea::adjustHiddentTasksWidget (this=0x5f02860) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:452
#21 0x00007fb4484437c9 in SystemTray::TaskArea::addWidgetForTask (this=0x5f02860, task=0x5ce20d0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:320
#22 0x00007fb448443b16 in SystemTray::TaskArea::addTask (this=0x5f02860, task=<optimized out>) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#23 0x0000003a7578b7d1 in QMetaObject::activate (sender=0x2dff530, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb6c02010) at kernel/qobject.cpp:3546
#24 0x00007fb448426c9f in SystemTray::Manager::taskAdded (this=<optimized out>, _t1=0x5ce20d0) at /usr/src/debug/kde-workspace-4.7.3/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/manager.moc:113
#25 0x00007fb448426eb5 in SystemTray::Manager::addTask (this=0x2dff530, task=0x5ce20d0) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/core/manager.cpp:87
#26 0x0000003a7578b7d1 in QMetaObject::activate (sender=0x2dfc5a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb6c021c0) at kernel/qobject.cpp:3546
#27 0x00007fb44842747f in SystemTray::Protocol::taskCreated (this=<optimized out>, _t1=0x5ce20d0) at /usr/src/debug/kde-workspace-4.7.3/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/protocol.moc:105
#28 0x00007fb44842e568 in SystemTray::PlasmoidProtocol::addApplet (this=0x2dfc5a0, appletName=..., id=<optimized out>, parent=0x5f07c80) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/protocols/plasmoid/plasmoidtaskprotocol.cpp:112
#29 0x00007fb448426af6 in SystemTray::Manager::addApplet (this=<optimized out>, appletName=<optimized out>, parent=<optimized out>) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/core/manager.cpp:110
#30 0x00007fb448438bb0 in SystemTray::Applet::checkDefaultApplets (this=0x5f07c80) at /usr/src/debug/kde-workspace-4.7.3/plasma/generic/applets/systemtray/ui/applet.cpp:737
#31 0x0000003a757909e6 in QObject::event (this=0x5f07c80, e=<optimized out>) at kernel/qobject.cpp:1194
#32 0x0000003a781f9f1b in QGraphicsWidget::event (this=0x5f07c80, event=0x5ce2e90) at graphicsview/qgraphicswidget.cpp:1461
#33 0x0000003a77bc96f4 in notify_helper (e=0x5ce2e90, receiver=0x5f07c80, this=0x266a6a0) at kernel/qapplication.cpp:4518
#34 QApplicationPrivate::notify_helper (this=0x266a6a0, receiver=0x5f07c80, e=0x5ce2e90) at kernel/qapplication.cpp:4490
#35 0x0000003a77bce573 in QApplication::notify (this=0x264aea0, receiver=0x5f07c80, e=0x5ce2e90) at kernel/qapplication.cpp:4379
#36 0x0000003a79650396 in KApplication::notify (this=0x264aea0, receiver=0x5f07c80, event=0x5ce2e90) at /usr/src/debug/kdelibs-4.7.3/kdeui/kernel/kapplication.cpp:311
#37 0x0000003a75777b4c in QCoreApplication::notifyInternal (this=0x264aea0, receiver=0x5f07c80, event=0x5ce2e90) at kernel/qcoreapplication.cpp:876
#38 0x0000003a7577b5da in sendEvent (event=0x5ce2e90, receiver=0x5f07c80) at kernel/qcoreapplication.h:231
#39 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x26026e0) at kernel/qcoreapplication.cpp:1500
#40 0x0000003a757a6403 in sendPostedEvents () at kernel/qcoreapplication.h:236
#41 postEventSourceDispatch (s=0x266df40) at kernel/qeventdispatcher_glib.cpp:279
#42 0x0000003a6c244a7d in g_main_dispatch (context=0x266cd10) at gmain.c:2425
#43 g_main_context_dispatch (context=0x266cd10) at gmain.c:2995
#44 0x0000003a6c245278 in g_main_context_iterate (context=0x266cd10, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3073
#45 0x0000003a6c24544c in g_main_context_iteration (context=0x266cd10, may_block=1) at gmain.c:3136
#46 0x0000003a757a682f in QEventDispatcherGlib::processEvents (this=0x2603ba0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#47 0x0000003a77c6c43e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#48 0x0000003a75776c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x0000003a75776ed7 in QEventLoop::exec (this=0x7fffb6c02da0, flags=...) at kernel/qeventloop.cpp:204
#50 0x0000003a7577b8d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#51 0x0000003a80a41243 in kdemain (argc=1, argv=0x7fffb6c03188) at /usr/src/debug/kde-workspace-4.7.3/plasma/desktop/shell/main.cpp:120
#52 0x0000003a6a22169d in __libc_start_main (main=0x400850 <main(int, char**)>, argc=1, ubp_av=0x7fffb6c03188, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb6c03178) at libc-start.c:226
#53 0x0000000000400881 in _start ()

Possible duplicates by query: bug 287632, bug 287313, bug 287144, bug 287117, bug 287060.

Reported using DrKonqi