Application: systemsettings (1.0)
KDE Platform Version: 4.9.1
Qt Version: 4.8.2
Operating System: Linux 3.2.0-31-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

I was attempting to open Workspace Appearence module of System Settings.

The crash can be reproduced every time.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fed28b34780 (LWP 13869))]

Thread 3 (Thread 0x7fed0c523700 (LWP 13870)):
#0  0x00007fed25ad0403 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fed1f222036 in g_main_context_poll (n_fds=1, fds=0x7fed04002bb0, timeout=-1, context=0x7fed040009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fed040009a0, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
#3  g_main_context_iterate (context=0x7fed040009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
#4  0x00007fed1f222164 in g_main_context_iteration (context=0x7fed040009a0, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#5  0x00007fed26251906 in QEventDispatcherGlib::processEvents (this=0x7fed040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fed26220e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fed26221097 in QEventLoop::exec (this=0x7fed0c522dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fed26120057 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fed26200b4f in QInotifyFileSystemWatcherEngine::run (this=0x1afc730) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fed2612307b in QThreadPrivate::start (arg=0x1afc730) at thread/qthread_unix.cpp:307
#11 0x00007fed1f6eee9a in start_thread (arg=0x7fed0c523700) at pthread_create.c:308
#12 0x00007fed25adbdbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fed0b8c9700 (LWP 13871)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fed23914222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fed23914259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fed1f6eee9a in start_thread (arg=0x7fed0b8c9700) at pthread_create.c:308
#4  0x00007fed25adbdbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fed28b34780 (LWP 13869)):
[KCrash Handler]
#6  0x00007fed0a2d6156 in KDecorationOptions::font(bool, bool) const () from /usr/lib/libkdecorations.so.4
#7  0x00007fed0a7251d9 in Bespin::Factory::readConfig() () from /usr/lib/kde4/kwin3_bespin.so
#8  0x00007fed0a726f80 in Bespin::Factory::Factory() () from /usr/lib/kde4/kwin3_bespin.so
#9  0x00007fed0a7273e6 in create_factory () from /usr/lib/kde4/kwin3_bespin.so
#10 0x00007fed0b8db27d in KDecorationPlugins::loadPlugin (this=0x1c707a0, nameStr=...) at ../../../kwin/libkdecorations/kdecoration_plugins_p.cpp:241
#11 0x00007fed0bb0c225 in KWin::DecorationModel::regeneratePreview (this=0x1c70670, index=..., size=...) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:332
#12 0x00007fed0bb0ca75 in KWin::DecorationModel::regenerateNextPreview (this=0x1c70670) at ../../../../kwin/kcmkwin/kwindecoration/decorationmodel.cpp:279
#13 0x00007fed2623b926 in QObject::event (this=0x1c70670, e=<optimized out>) at kernel/qobject.cpp:1195
#14 0x00007fed26e997b4 in notify_helper (e=0x227b560, receiver=0x1c70670, this=0x14cecc0) at kernel/qapplication.cpp:4556
#15 QApplicationPrivate::notify_helper (this=0x14cecc0, receiver=0x1c70670, e=0x227b560) at kernel/qapplication.cpp:4528
#16 0x00007fed26e9e583 in QApplication::notify (this=0x7fffa9272450, receiver=0x1c70670, e=0x227b560) at kernel/qapplication.cpp:4417
#17 0x00007fed27bd44a6 in KApplication::notify (this=0x7fffa9272450, receiver=0x1c70670, event=0x227b560) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007fed2622230c in QCoreApplication::notifyInternal (this=0x7fffa9272450, receiver=0x1c70670, event=0x227b560) at kernel/qcoreapplication.cpp:915
#19 0x00007fed262260ea in sendEvent (event=0x227b560, receiver=0x1c70670) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x148a1f0) at kernel/qcoreapplication.cpp:1539
#21 0x00007fed26251473 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#22 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#23 0x00007fed1f221d53 in g_main_dispatch (context=0x14ce570) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
#24 g_main_context_dispatch (context=0x14ce570) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
#25 0x00007fed1f2220a0 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x14ce570, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
#26 g_main_context_iterate (context=0x14ce570, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3083
#27 0x00007fed1f222164 in g_main_context_iteration (context=0x14ce570, may_block=1) at /build/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#28 0x00007fed2625189f in QEventDispatcherGlib::processEvents (this=0x148bad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0x00007fed26f41cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007fed26220e42 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007fed26221097 in QEventLoop::exec (this=0x7fffa92723e0, flags=...) at kernel/qeventloop.cpp:204
#32 0x00007fed262263e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#33 0x000000000040a9e5 in main (argc=1, argv=0x7fffa9272718) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 304662, bug 304638.

Reported using DrKonqi