Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:

When I was  try add Bandeja de sistema to the panel , the plasma crash

The crash can be reproduced some of the time.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f129c7d37a0 (LWP 2049))]

Thread 3 (Thread 0x7f127d1cc700 (LWP 2051)):
#0  0x00007f129c0b7773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f1290642f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1290643429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12992a9f3e in QEventDispatcherGlib::processEvents (this=0x2afa240, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f129927dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f129927def7 in QEventLoop::exec (this=0x7f127d1cbdb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f129919527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f1299260cbf in QInotifyFileSystemWatcherEngine::run (this=0x270ed00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1299197d05 in QThreadPrivate::start (arg=0x270ed00) at thread/qthread_unix.cpp:331
#9  0x00007f129114fefc in start_thread (arg=0x7f127d1cc700) at pthread_create.c:304
#10 0x00007f129c0c389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1270ceb700 (LWP 2054)):
#0  0x00007f129c0b7773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f1290642f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1290643429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12992a9f3e in QEventDispatcherGlib::processEvents (this=0x314f500, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f129927dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f129927def7 in QEventLoop::exec (this=0x7f1270ceadb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f129919527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f1299260cbf in QInotifyFileSystemWatcherEngine::run (this=0x3156600) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f1299197d05 in QThreadPrivate::start (arg=0x3156600) at thread/qthread_unix.cpp:331
#9  0x00007f129114fefc in start_thread (arg=0x7f1270ceb700) at pthread_create.c:304
#10 0x00007f129c0c389d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f129c7d37a0 (LWP 2049)):
[KCrash Handler]
#6  0x00007f1298c10734 in QGraphicsLayoutItem::isLayout (this=0x5a718f0) at graphicsview/qgraphicslayoutitem.cpp:868
#7  0x00007f1298c0f6e2 in QGraphicsLayoutPrivate::activateRecursive (this=0x6cc3c50, item=0x5a718f0) at graphicsview/qgraphicslayout_p.cpp:181
#8  0x00007f1298c0f724 in QGraphicsLayoutPrivate::activateRecursive (this=0x6cc3c50, item=0x4cf27e0) at graphicsview/qgraphicslayout_p.cpp:194
#9  0x00007f1298c0f0db in QGraphicsLayout::activate (this=0x4cf27e0) at graphicsview/qgraphicslayout.cpp:261
#10 0x00007f1298c0f199 in QGraphicsLayout::widgetEvent (this=0x4cf27e0, e=<optimized out>) at graphicsview/qgraphicslayout.cpp:389
#11 0x00007f1298c4d85a in QGraphicsWidget::event (this=<optimized out>, event=0x6212f20) at graphicsview/qgraphicswidget.cpp:1379
#12 0x00007f129862f424 in notify_helper (e=0x6212f20, receiver=0x5b54d90, this=0x2245080) at kernel/qapplication.cpp:4486
#13 QApplicationPrivate::notify_helper (this=0x2245080, receiver=0x5b54d90, e=0x6212f20) at kernel/qapplication.cpp:4458
#14 0x00007f1298634291 in QApplication::notify (this=0x2249030, receiver=0x5b54d90, e=0x6212f20) at kernel/qapplication.cpp:4365
#15 0x00007f1299f2d126 in KApplication::notify (this=0x2249030, receiver=0x5b54d90, event=0x6212f20) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f129927eafc in QCoreApplication::notifyInternal (this=0x2249030, receiver=0x5b54d90, event=0x6212f20) at kernel/qcoreapplication.cpp:787
#17 0x00007f129928251f in sendEvent (event=0x6212f20, receiver=0x5b54d90) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x21db430) at kernel/qcoreapplication.cpp:1428
#19 0x00007f12992a9a73 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#20 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#21 0x00007f1290642a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f1290643258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f1290643429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f12992a9ed6 in QEventDispatcherGlib::processEvents (this=0x21dcf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#25 0x00007f12986d707e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f129927dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f129927def7 in QEventLoop::exec (this=0x7fff48746e00, flags=...) at kernel/qeventloop.cpp:201
#28 0x00007f1299282789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#29 0x00007f129c3c21a3 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#30 0x00007f129c00330d in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff487471e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff487471d8) at libc-start.c:226
#31 0x0000000000400671 in _start ()

Possible duplicates by query: bug 285399, bug 285193, bug 284550, bug 284392, bug 282758.

Reported using DrKonqi