Application: systemsettings (1.0)
KDE Platform Version: 4.8.90 (4.8.90)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-26-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:I was using system settings, and every time I attempt to open workspace appearance, the aplication crashes. I have read the relatories and the bug is similar with others related, but the my backtrace is different in details, and I am using kde 4.8.90

The crash can be reproduced every time.

-- Backtrace:
Application: Configurações do sistema (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f653d436780 (LWP 13135))]

Thread 3 (Thread 0x7f651ff85700 (LWP 13136)):
#0  0x00007f653ab50b7a in postEventSourcePrepare (s=0x7f65180012d0, timeout=0x7f651ff84c6c) at kernel/qeventdispatcher_glib.cpp:255
#1  0x00007f6533b22846 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6533b22f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6533b23164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f653ab51426 in QEventDispatcherGlib::processEvents (this=0x7f65180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f653ab20c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f653ab20ed7 in QEventLoop::exec (this=0x7f651ff84dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f653aa1ffa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f653ab009ff in QInotifyFileSystemWatcherEngine::run (this=0x13bff60) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f653aa22fcb in QThreadPrivate::start (arg=0x13bff60) at thread/qthread_unix.cpp:298
#10 0x00007f6533fefe9a in start_thread (arg=0x7f651ff85700) at pthread_create.c:308
#11 0x00007f653a3dc4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f651f32c700 (LWP 13137)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f6538216222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f6538216259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6533fefe9a in start_thread (arg=0x7f651f32c700) at pthread_create.c:308
#4  0x00007f653a3dc4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f653d436780 (LWP 13135)):
[KCrash Handler]
#6  0x00007f651d17e300 in KDecorationOptions::showTooltips() const () from /usr/lib/libkdecorations.so.4
#7  0x00007f651d17e3a7 in KDecoration::createMainWidget(QFlags<Qt::WindowType>) () from /usr/lib/libkdecorations.so.4
#8  0x00007f651d5b3a1a in ?? () from /usr/lib/kde4/kwin3_deKorator.so
#9  0x00007f651f56ce32 in KDecorationPreview::recreateDecoration (this=0x1540d20, plugins=0x1540cc0) at ../../../../kwin/kcmkwin/kwindecoration/preview.cpp:77
#10 0x00007f651f56ee95 in KWin::DecorationModel::regeneratePreview (this=0x1540b90, index=..., size=...) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:311
#11 0x00007f651f56f1f5 in KWin::DecorationModel::regenerateNextPreview (this=0x1540b90) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:262
#12 0x00007f653ab3b446 in QObject::event (this=0x1540b90, e=<optimized out>) at kernel/qobject.cpp:1195
#13 0x00007f653b799894 in notify_helper (e=0x1c4c3f0, receiver=0x1540b90, this=0xceaf00) at kernel/qapplication.cpp:4559
#14 QApplicationPrivate::notify_helper (this=0xceaf00, receiver=0x1540b90, e=0x1c4c3f0) at kernel/qapplication.cpp:4531
#15 0x00007f653b79e713 in QApplication::notify (this=0x7fffada38eb0, receiver=0x1540b90, e=0x1c4c3f0) at kernel/qapplication.cpp:4420
#16 0x00007f653c4d39e6 in KApplication::notify (this=0x7fffada38eb0, receiver=0x1540b90, event=0x1c4c3f0) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007f653ab21e9c in QCoreApplication::notifyInternal (this=0x7fffada38eb0, receiver=0x1540b90, event=0x1c4c3f0) at kernel/qcoreapplication.cpp:876
#18 0x00007f653ab25c6a in sendEvent (event=0x1c4c3f0, receiver=0x1540b90) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xc991f0) at kernel/qcoreapplication.cpp:1500
#20 0x00007f653ab50f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#21 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#22 0x00007f6533b22d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f6533b230a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f6533b23164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f653ab513bf in QEventDispatcherGlib::processEvents (this=0xc9aad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007f653b841d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f653ab20c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f653ab20ed7 in QEventLoop::exec (this=0x7fffada38e40, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007f653ab25f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#30 0x000000000040a9e5 in main (argc=5, argv=0x7fffada39178) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 302850, bug 302082, bug 301787.

Reported using DrKonqi