Bug 288096

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:

Nada el escritorio estaba iniciado. ninguna tarea estaba en proceso, solo opte por abrir un panel nuevo y se presento el error

The crash can be reproduced every time.

-- Backtrace:
Application: Shell de escritorio Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7faeb64117c0 (LWP 1656))]

Thread 5 (Thread 0x7faea6756700 (LWP 1657)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007faea6755ab0 in ?? ()
#2  0x00007fff72dd67e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 4 (Thread 0x7faea3c61700 (LWP 1658)):
#0  __pthread_mutex_lock (mutex=0x298fd18) at pthread_mutex_lock.c:62
#1  0x00007faebd8a375f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faebd8a3f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faebd8a4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faec650af3e in QEventDispatcherGlib::processEvents (this=0x298fcf0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007faec64decf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007faec64deef7 in QEventLoop::exec (this=0x7faea3c60d90, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007faec63f627f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007faec64c1cbf in QInotifyFileSystemWatcherEngine::run (this=0x298f550) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007faec63f8d05 in QThreadPrivate::start (arg=0x298f550) at thread/qthread_unix.cpp:331
#10 0x00007faebe3b0efc in start_thread (arg=0x7faea3c61700) at pthread_create.c:304
#11 0x00007faec932489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faea0a12700 (LWP 1664)):
#0  0x00007faebe3b41fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x2c8cdc8) at pthread_mutex_unlock.c:290
#2  0x00007faebd8a33f5 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faebd8a3e6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faebd8a4792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faea14f0516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007faebd8c92b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007faebe3b0efc in start_thread (arg=0x7faea0a12700) at pthread_create.c:304
#8  0x00007faec932489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fae996f6700 (LWP 1918)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faec350ffe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007faec3510019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007faebe3b0efc in start_thread (arg=0x7fae996f6700) at pthread_create.c:304
#4  0x00007faec932489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faeb64117c0 (LWP 1656)):
[KCrash Handler]
#6  QGraphicsLayoutItem::setParentLayoutItem (this=0x3596aa0, parent=0x0) at graphicsview/qgraphicslayoutitem.cpp:856
#7  0x00007faec5e45bd4 in QGraphicsGridLayout::removeAt (this=0x3296480, index=<optimized out>) at graphicsview/qgraphicsgridlayout.cpp:583
#8  0x00007faeaed44bb3 in SystemTray::TaskArea::relayoutHiddenTasks (this=0x3293bd0) at ../../../../../plasma/generic/applets/systemtray/ui/taskarea.cpp:422
#9  0x00007faeaed450cc in SystemTray::TaskArea::qt_metacall (this=0x3293bd0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff72c47fa0) at ./taskarea.moc:93
#10 0x00007faec64f2eba in QMetaObject::activate (sender=0x32940f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#11 0x00007faec64f6789 in QObject::event (this=0x32940f0, e=<optimized out>) at kernel/qobject.cpp:1181
#12 0x00007faec5890424 in notify_helper (e=0x7fff72c48500, receiver=0x32940f0, this=0x1dcb2a0) at kernel/qapplication.cpp:4486
#13 QApplicationPrivate::notify_helper (this=0x1dcb2a0, receiver=0x32940f0, e=0x7fff72c48500) at kernel/qapplication.cpp:4458
#14 0x00007faec5895291 in QApplication::notify (this=0x1dbebf0, receiver=0x32940f0, e=0x7fff72c48500) at kernel/qapplication.cpp:4365
#15 0x00007faec718e126 in KApplication::notify (this=0x1dbebf0, receiver=0x32940f0, event=0x7fff72c48500) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007faec64dfafc in QCoreApplication::notifyInternal (this=0x1dbebf0, receiver=0x32940f0, event=0x7fff72c48500) at kernel/qcoreapplication.cpp:787
#17 0x00007faec650cd62 in sendEvent (event=0x7fff72c48500, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QTimerInfoList::activateTimers (this=0x1dd0360) at kernel/qeventdispatcher_unix.cpp:603
#19 0x00007faec650a514 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#20 0x00007faebd8a3a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007faebd8a4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007faebd8a4429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007faec650aed6 in QEventDispatcherGlib::processEvents (this=0x1d55f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#24 0x00007faec593807e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007faec64decf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007faec64deef7 in QEventLoop::exec (this=0x7fff72c48790, flags=...) at kernel/qeventloop.cpp:201
#27 0x00007faec64e3789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#28 0x00007faec96231a3 in kdemain (argc=1, argv=0x7fff72c48b78) at ../../../../plasma/desktop/shell/main.cpp:120
#29 0x00007faec926430d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff72c48b78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff72c48b68) at libc-start.c:226
#30 0x0000000000400671 in _start ()

Possible duplicates by query: bug 287387, bug 285813, bug 285799, bug 284705, bug 284313.

Reported using DrKonqi