Application: systemsettings (1.0)
KDE Platform Version: 4.9.00
Qt Version: 4.8.1
Operating System: Linux 3.2.0-29-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

systemsettings crashes when opening window appearence page.

The crash can be reproduced every time.

-- Backtrace:
Application: Configuração 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 0x7f066a00a7c0 (LWP 2976))]

Thread 3 (Thread 0x7f064ba64700 (LWP 2999)):
#0  0x00007f0666fadb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f0660701036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0660701164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f066772e426 in QEventDispatcherGlib::processEvents (this=0x7f06440008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f06676fdc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f06676fded7 in QEventLoop::exec (this=0x7f064ba63cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f06675fcfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f06676dd9ff in QInotifyFileSystemWatcherEngine::run (this=0x17abb00) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f06675fffcb in QThreadPrivate::start (arg=0x17abb00) at thread/qthread_unix.cpp:298
#9  0x00007f065bfc4b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f0660bcde9a in start_thread (arg=0x7f064ba64700) at pthread_create.c:308
#11 0x00007f0666fb94bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f064addf700 (LWP 3009)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0664df3222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f0664df3259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f065bfc4b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f0660bcde9a in start_thread (arg=0x7f064addf700) at pthread_create.c:308
#5  0x00007f0666fb94bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f066a00a7c0 (LWP 2976)):
[KCrash Handler]
#6  0x00007f0648d89156 in KDecorationOptions::font(bool, bool) const () from /usr/lib/libkdecorations.so.4
#7  0x00007f0648761ab8 in ?? () from /usr/lib/kde4/kwin3_skulpture.so
#8  0x00007f064b04b232 in KDecorationPreview::recreateDecoration (this=0x19263d0, plugins=0x1926330) at ../../../../kwin/kcmkwin/kwindecoration/preview.cpp:77
#9  0x00007f064b04d43d in KWin::DecorationModel::regeneratePreview (this=0x1926200, index=..., size=...) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:332
#10 0x00007f064b04d835 in KWin::DecorationModel::regenerateNextPreview (this=0x1926200) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:279
#11 0x00007f0667718446 in QObject::event (this=0x1926200, e=<optimized out>) at kernel/qobject.cpp:1195
#12 0x00007f0668375894 in notify_helper (e=0x1f58270, receiver=0x1926200, this=0x1141da0) at kernel/qapplication.cpp:4559
#13 QApplicationPrivate::notify_helper (this=0x1141da0, receiver=0x1926200, e=0x1f58270) at kernel/qapplication.cpp:4531
#14 0x00007f066837a713 in QApplication::notify (this=0x7fff08e95e50, receiver=0x1926200, e=0x1f58270) at kernel/qapplication.cpp:4420
#15 0x00007f06690af456 in KApplication::notify (this=0x7fff08e95e50, receiver=0x1926200, event=0x1f58270) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f06676fee9c in QCoreApplication::notifyInternal (this=0x7fff08e95e50, receiver=0x1926200, event=0x1f58270) at kernel/qcoreapplication.cpp:876
#17 0x00007f0667702c6a in sendEvent (event=0x1f58270, receiver=0x1926200) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x10771f0) at kernel/qcoreapplication.cpp:1500
#19 0x00007f066772df93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#20 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#21 0x00007f0660700d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f06607010a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f0660701164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f066772e3bf in QEventDispatcherGlib::processEvents (this=0x1078ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007f066841dd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f06676fdc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f06676fded7 in QEventLoop::exec (this=0x7fff08e95de0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007f0667702f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#29 0x000000000040a9e5 in main (argc=5, argv=0x7fff08e96118) at ../../../systemsettings/app/main.cpp:49

This bug may be a duplicate of or related to bug 301646.

Possible duplicates by query: bug 304766, bug 304645, bug 302112, bug 301826.

Reported using DrKonqi