Bug 309662

Application: plasma-desktop (0.4)
KDE Platform Version: 4.9.2
Qt Version: 4.8.3
Operating System: Linux 3.5.0-17-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
I was add a second panel in the top to remove the origianl panel in botton

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f5f8e706780 (LWP 2380))]

Thread 4 (Thread 0x7f5f81690700 (LWP 2381)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f9b796cd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f5f9b796d09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f5f95e2fe9a in start_thread (arg=0x7f5f81690700) at pthread_create.c:308
#4  0x00007f5fa1a99cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f5f7a759700 (LWP 2384)):
#0  0x00007f5fa1a8e303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5f95730d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5f95730ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5f9e73fc16 in QEventDispatcherGlib::processEvents (this=0x7f5f6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f5f9e7102bf in QEventLoop::processEvents (this=this@entry=0x7f5f7a758dd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f5f9e710548 in QEventLoop::exec (this=0x7f5f7a758dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f5f9e611b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f5f9e6f09af in QInotifyFileSystemWatcherEngine::run (this=0x2fbc7e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f5f9e614aec in QThreadPrivate::start (arg=0x2fbc7e0) at thread/qthread_unix.cpp:338
#9  0x00007f5f95e2fe9a in start_thread (arg=0x7f5f7a759700) at pthread_create.c:308
#10 0x00007f5fa1a99cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5f73551700 (LWP 2385)):
#0  0x00007f5fa1a8c8bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f5f9576cf6f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5f95730914 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5f95730d22 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5f95730ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5f9e73fc16 in QEventDispatcherGlib::processEvents (this=0x7f5f680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f5f9e7102bf in QEventLoop::processEvents (this=this@entry=0x7f5f73550dd0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f5f9e710548 in QEventLoop::exec (this=0x7f5f73550dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f5f9e611b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f5f9e6f09af in QInotifyFileSystemWatcherEngine::run (this=0x3340350) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f5f9e614aec in QThreadPrivate::start (arg=0x3340350) at thread/qthread_unix.cpp:338
#11 0x00007f5f95e2fe9a in start_thread (arg=0x7f5f73551700) at pthread_create.c:308
#12 0x00007f5fa1a99cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5f8e706780 (LWP 2380)):
[KCrash Handler]
#6  0x00007f5fa0304dd4 in QDeclarativeItem::~QDeclarativeItem (this=0x42e1220, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f5fa02c86ee in ~QDeclarativeElement (this=0x42e1220, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x42e1220, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f5f9e726468 in QObject::event (this=0x42e1220, e=<optimized out>) at kernel/qobject.cpp:1176
#10 0x00007f5f9dab8e9c in QApplicationPrivate::notify_helper (this=this@entry=0x24fc720, receiver=receiver@entry=0x42e1220, e=e@entry=0x3c02640) at kernel/qapplication.cpp:4562
#11 0x00007f5f9dabd30a in QApplication::notify (this=0x24e89b0, receiver=0x42e1220, e=0x3c02640) at kernel/qapplication.cpp:4423
#12 0x00007f5f9f3ca1d6 in KApplication::notify (this=0x24e89b0, receiver=0x42e1220, event=0x3c02640) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f5f9e71156e in QCoreApplication::notifyInternal (this=0x24e89b0, receiver=receiver@entry=0x42e1220, event=event@entry=0x3c02640) at kernel/qcoreapplication.cpp:915
#14 0x00007f5f9e7153f1 in sendEvent (event=0x3c02640, receiver=0x42e1220) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x24831f0) at kernel/qcoreapplication.cpp:1539
#16 0x00007f5f9e73fa63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#17 postEventSourceDispatch (s=0x2501600) at kernel/qeventdispatcher_glib.cpp:279
#18 0x00007f5f95730ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f5f95730de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f5f95730ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f5f9e73fbf6 in QEventDispatcherGlib::processEvents (this=0x2484ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007f5f9db5dc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007f5f9e7102bf in QEventLoop::processEvents (this=this@entry=0x7fffcac84dc0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f5f9e710548 in QEventLoop::exec (this=0x7fffcac84dc0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f5f9e715708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#26 0x00007f5fa1da0035 in kdemain (argc=1, argv=0x7fffcac850b8) at ../../../../plasma/desktop/shell/main.cpp:120
#27 0x00007f5fa19c776d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fffcac850b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcac850a8) at libc-start.c:226
#28 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 308111, bug 302568, bug 302336, bug 301867, bug 300393.

Reported using DrKonqi