Version:           unspecified (using KDE 4.7.3) 
OS:                Linux

I add the gadget "show desktop" and every time I add it to skip the error bar. And when you want to add the gadget to the desktop, I added an invisible gadget that I can delete, but not closed Plasma or throws me error.
I have other gadget on the bar to which I added in the same way, but for now only the "show desktop" is what serves me.

Reproducible: Always

Steps to Reproduce:
The steps are: "Add graphic element" -> select the "Show Desktop"


Expected Results:  
I don't now.

Application: Shell de escritorio Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f16a7b24760 (LWP 3005))]

Thread 2 (Thread 0x7f1682739700 (LWP 3155)):
#0  0x00007fffedfff98f in clock_gettime ()
#1  0x00007f16a2240e91 in clock_gettime () from /lib64/librt.so.1
#2  0x00007f16a66e8114 in do_gettime (frac=0x7f1682738b78, sec=0x7f1682738b70) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f16a67a9d1d in QTimerInfoList::updateCurrentTime (this=0xffd2f0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f16a67aa053 in QTimerInfoList::timerWait (this=0xffd2f0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f16a67a8abc in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f1682738c5c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f16a67a8b65 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f16a1f8bb22 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#9  0x00007f16a1f8c92d in ?? () from /usr/lib64/libglib-2.0.so.0
#10 0x00007f16a1f8cf59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#11 0x00007f16a67a9576 in QEventDispatcherGlib::processEvents (this=0xf30810, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007f16a677da22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f16a677dc1f in QEventLoop::exec (this=0x7f1682738df0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007f16a66955df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007f16a6760aef in QInotifyFileSystemWatcherEngine::run (this=0xed9840) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f16a6698025 in QThreadPrivate::start (arg=0xed9840) at thread/qthread_unix.cpp:331
#17 0x00007f16a6407f05 in start_thread () from /lib64/libpthread.so.0
#18 0x00007f16a51a053d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f16a7b24760 (LWP 3005)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=0x1f29650, event=0x18d3320, priority=0) at kernel/qcoreapplication.cpp:1188
#7  0x00007f16a59bc1ba in QX11Data::xdndHandleFinished (this=<optimized out>, xe=0x7fffedff38a0, passive=false) at kernel/qdnd_x11.cpp:1254
#8  0x00007f16a59ae5d3 in QApplication::x11ClientMessage (this=<optimized out>, w=0x1eafce0, event=<optimized out>, passive_only=<optimized out>) at kernel/qapplication_x11.cpp:3169
#9  0x00007f16a59aca44 in QApplication::x11ProcessEvent (this=0x6afca0, event=0x7fffedff38a0) at kernel/qapplication_x11.cpp:3737
#10 0x00007f16a59d42a2 in x11EventSourceDispatch (s=0x716a20, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#11 0x00007f16a1f8c58d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#12 0x00007f16a1f8cd88 in ?? () from /usr/lib64/libglib-2.0.so.0
#13 0x00007f16a1f8cf59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#14 0x00007f16a67a950f in QEventDispatcherGlib::processEvents (this=0x708230, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#15 0x00007f16a59d3f2e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#16 0x00007f16a677da22 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#17 0x00007f16a677dc1f in QEventLoop::exec (this=0x7fffedff3c70, flags=...) at kernel/qeventloop.cpp:201
#18 0x00007f16a6781de7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#19 0x00007f16952d7773 in kdemain (argc=1, argv=0x615b10) at /usr/src/debug/kde-workspace-4.7.2/plasma/desktop/shell/main.cpp:120
#20 0x0000000000408897 in _start ()