Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.8.0
Operating System: Linux 3.1.6-1.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
- What I was doing when the application crashed:
I had open a new default panel because I had made an error I couldn't figure out how to fix and I had two very similar panels.  I closed the one I messed up and got the crash at that point.  I don't know if I can recreate the problem as I don't know what I did to mess up the first one.

-- 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 0x7ff13eab7840 (LWP 1797))]

Thread 3 (Thread 0x7ff11d997700 (LWP 1798)):
#0  0x00007ff138a6eaf3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003569c44f88 in g_main_context_poll (n_fds=1, fds=0x7ff118002400, priority=<optimized out>, timeout=-1, context=0x7ff1180009a0) at gmain.c:3386
#2  g_main_context_iterate (context=0x7ff1180009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3068
#3  0x0000003569c4544c in g_main_context_iteration (context=0x7ff1180009a0, may_block=1) at gmain.c:3136
#4  0x00007ff13a03ddb6 in QEventDispatcherGlib::processEvents (this=0x7ff1180008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007ff13a00e172 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff13a00e3c7 in QEventLoop::exec (this=0x7ff11d996d10, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff139f0eb27 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007ff139fede6f in QInotifyFileSystemWatcherEngine::run (this=0x2e64e50) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007ff139f11b6b in QThreadPrivate::start (arg=0x2e64e50) at thread/qthread_unix.cpp:298
#10 0x00007ff139c81d90 in start_thread (arg=0x7ff11d997700) at pthread_create.c:309
#11 0x00007ff138a7748d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7ff117fff700 (LWP 2038)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x00007ff13dcb1e62 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7ff13dfab240) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007ff13dcb1e99 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007ff139c81d90 in start_thread (arg=0x7ff117fff700) at pthread_create.c:309
#4  0x00007ff138a7748d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7ff13eab7840 (LWP 1797)):
[KCrash Handler]
#6  0x00007ff13977fcb4 in QGraphicsLayoutItem::setParentLayoutItem (this=0x352dcc0, parent=0x0) at graphicsview/qgraphicslayoutitem.cpp:917
#7  0x00007ff125cb604f in SystemTray::CompactLayout::removeItem (this=0x4ce4230, item=0x352dcc0) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/compactlayout.cpp:127
#8  0x00007ff125cb9ed7 in SystemTray::TaskArea::addWidgetForTask (this=0x4ce4320, task=0x352b5c0) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/taskarea.cpp:280
#9  0x00007ff125cbac36 in SystemTray::TaskArea::addTask (this=0x4ce4320, task=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/taskarea.cpp:196
#10 0x00007ff13a022cd1 in QMetaObject::activate (sender=0x283a380, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2a6e9050) at kernel/qobject.cpp:3547
#11 0x00007ff125c9dce2 in SystemTray::Manager::taskChanged (this=<optimized out>, _t1=0x352b5c0) at /usr/src/debug/kde-workspace-4.7.4/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/manager.moc:120
#12 0x00007ff13a022cd1 in QMetaObject::activate (sender=0x352b5c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2a6e91a0) at kernel/qobject.cpp:3547
#13 0x00007ff125c9e85f in SystemTray::Task::changed (this=<optimized out>, _t1=0x352b5c0) at /usr/src/debug/kde-workspace-4.7.4/x86_64-redhat-linux-gnu/plasma/generic/applets/systemtray/task.moc:126
#14 0x00007ff125c9eb31 in SystemTray::Task::widgetDeleted (this=0x352b5c0) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/core/task.cpp:129
#15 0x00007ff13a022cd1 in QMetaObject::activate (sender=0x352dca0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff2a6e9340) at kernel/qobject.cpp:3547
#16 0x00007ff13a02367f in QObject::destroyed (this=<optimized out>, _t1=0x352dca0) at .moc/release-shared/moc_qobject.cpp:149
#17 0x00007ff13a02714e in QObject::~QObject (this=0x352dca0, __in_chrg=<optimized out>) at kernel/qobject.cpp:844
#18 0x00007ff1397c0b51 in ~QGraphicsObject (this=0x352dca0, __in_chrg=<optimized out>) at ../../src/gui/graphicsview/qgraphicsitem.h:547
#19 QGraphicsWidget::~QGraphicsWidget (this=0x352dca0, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#20 0x00007ff125c9fbd9 in SystemTray::FdoGraphicsWidget::~FdoGraphicsWidget (this=0x352dca0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/protocols/fdo/fdographicswidget.cpp:77
#21 0x00007ff139771056 in QGraphicsItem::~QGraphicsItem (this=0x2b0e340, __in_chrg=<optimized out>) at graphicsview/qgraphicsitem.cpp:1493
#22 0x00007ff1397c0b49 in ~QGraphicsObject (this=0x2b0e330, __in_chrg=<optimized out>) at ../../src/gui/graphicsview/qgraphicsitem.h:547
#23 QGraphicsWidget::~QGraphicsWidget (this=0x2b0e330, __in_chrg=<optimized out>) at graphicsview/qgraphicswidget.cpp:232
#24 0x00007ff125cb87d9 in SystemTray::TaskArea::~TaskArea (this=0x2b0e330, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/taskarea.cpp:147
#25 0x00007ff125cb0ddd in SystemTray::Applet::~Applet (this=0x28fdcf0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/applet.cpp:145
#26 0x00007ff125cb0fe9 in SystemTray::Applet::~Applet (this=0x28fdcf0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/generic/applets/systemtray/ui/applet.cpp:163
#27 0x00007ff13cd9d822 in ~ContainmentPrivate (this=<optimized out>, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.4/plasma/private/containment_p.h:72
#28 Plasma::Containment::~Containment (this=0x28d8d30, __in_chrg=<optimized out>) at /usr/src/debug/kdelibs-4.7.4/plasma/containment.cpp:148
#29 0x00007ff126982bb9 in Panel::~Panel (this=0x28d8d30, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.4/plasma/desktop/containments/panel/panel.cpp:129
#30 0x00007ff13a027f38 in QObject::event (this=0x28d8d30, e=<optimized out>) at kernel/qobject.cpp:1176
#31 0x00007ff1397bc9cb in QGraphicsWidget::event (this=0x28d8d30, event=0x4d77750) at graphicsview/qgraphicswidget.cpp:1461
#32 0x00007ff13918b994 in notify_helper (e=0x4d77750, receiver=0x28d8d30, this=0x24dbf30) at kernel/qapplication.cpp:4550
#33 QApplicationPrivate::notify_helper (this=0x24dbf30, receiver=0x28d8d30, e=0x4d77750) at kernel/qapplication.cpp:4522
#34 0x00007ff139190813 in QApplication::notify (this=0x24cf5e0, receiver=0x28d8d30, e=0x4d77750) at kernel/qapplication.cpp:4411
#35 0x00007ff13af6b766 in KApplication::notify (this=0x24cf5e0, receiver=0x28d8d30, event=0x4d77750) at /usr/src/debug/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#36 0x00007ff13a00f03c in QCoreApplication::notifyInternal (this=0x24cf5e0, receiver=0x28d8d30, event=0x4d77750) at kernel/qcoreapplication.cpp:876
#37 0x00007ff13a012aca in sendEvent (event=0x4d77750, receiver=0x28d8d30) at kernel/qcoreapplication.h:231
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x24716e0) at kernel/qcoreapplication.cpp:1500
#39 0x00007ff13a03d923 in sendPostedEvents () at kernel/qcoreapplication.h:236
#40 postEventSourceDispatch (s=0x24e0520) at kernel/qeventdispatcher_glib.cpp:279
#41 0x0000003569c44a7d in g_main_dispatch (context=0x24df0e0) at gmain.c:2425
#42 g_main_context_dispatch (context=0x24df0e0) at gmain.c:2995
#43 0x0000003569c45278 in g_main_context_iterate (context=0x24df0e0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3073
#44 0x0000003569c4544c in g_main_context_iteration (context=0x24df0e0, may_block=1) at gmain.c:3136
#45 0x00007ff13a03dd4f in QEventDispatcherGlib::processEvents (this=0x2472ba0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007ff13922e61e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#47 0x00007ff13a00e172 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007ff13a00e3c7 in QEventLoop::exec (this=0x7fff2a6e9fc0, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007ff13a012dc5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#50 0x00007ff13e6b3243 in kdemain (argc=1, argv=0x7fff2a6ea3a8) at /usr/src/debug/kde-workspace-4.7.4/plasma/desktop/shell/main.cpp:120
#51 0x00007ff1389a969d in __libc_start_main (main=0x400850 <main(int, char**)>, argc=1, ubp_av=0x7fff2a6ea3a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2a6ea398) at libc-start.c:226
#52 0x0000000000400881 in _start ()

Possible duplicates by query: bug 289951, bug 287792, bug 287288, bug 286371, bug 286296.

Reported using DrKonqi