Application: kcmshell4 (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.5
Operating System: Linux 3.10.4-300.fc19.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

I had changed the resolution in Catalyst (13.8 beta) to 1600x900 and sometime later proceeded to changed the resolution in in "display configuration" also to 1600x900 (forgetting what resolution I was currently running) and on clicking "apply" the crash happens.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fe8a52ba8c0 (LWP 2132))]

Thread 2 (Thread 0x7fe880728700 (LWP 2133)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fe889fdc0bb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fe88a2d9f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fe889fdc0f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fe8a37d0c53 in start_thread (arg=0x7fe880728700) at pthread_create.c:308
#4  0x00007fe8a1de413d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fe8a52ba8c0 (LWP 2132)):
[KCrash Handler]
#6  KScreen::Mode::size (this=0x0) at /usr/src/debug/libkscreen-1.0/src/mode.cpp:83
#7  0x00007fe880733328 in XRandRConfig::applyKScreenConfig (this=0x2461610, config=<optimized out>) at /usr/src/debug/libkscreen-1.0/backends/xrandr/xrandrconfig.cpp:164
#8  0x00007fe88a305dff in KScreen::Config::setConfig (config=0x241eac0) at /usr/src/debug/libkscreen-1.0/src/config.cpp:66
#9  0x00007fe88afee959 in KCMKScreen::save (this=0x245f2c0) at /usr/src/debug/kscreen-1.0/kcm/src/kcm_kscreen.cpp:213
#10 0x00007fe8a4ca51b7 in KCModuleProxy::save (this=this@entry=0x23ff0a0) at /usr/src/debug/kdelibs-4.10.5/kutils/kcmoduleproxy.cpp:279
#11 0x00007fe8a4ca14e8 in KCMultiDialogPrivate::apply (this=<optimized out>) at /usr/src/debug/kdelibs-4.10.5/kutils/kcmultidialog.cpp:300
#12 0x00007fe8a3b72f78 in QMetaObject::activate (sender=sender@entry=0x23ab710, m=m@entry=0x7fe8a4c57380 <KDialog::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x0) at kernel/qobject.cpp:3547
#13 0x00007fe8a47b89e3 in KDialog::applyClicked (this=this@entry=0x23ab710) at /usr/src/debug/kdelibs-4.10.5/x86_64-redhat-linux-gnu/kdeui/kdialog.moc:259
#14 0x00007fe8a47b9036 in KDialog::slotButtonClicked (this=0x23ab710, button=8) at /usr/src/debug/kdelibs-4.10.5/kdeui/dialogs/kdialog.cpp:888
#15 0x00007fe8a47ba9af in KDialog::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kdelibs-4.10.5/x86_64-redhat-linux-gnu/kdeui/kdialog.moc:166
#16 0x00007fe8a3b72f78 in QMetaObject::activate (sender=sender@entry=0x23abde0, m=m@entry=0x7fe8a3ebfd40 <QSignalMapper::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff680c8ed0) at kernel/qobject.cpp:3547
#17 0x00007fe8a3b7a64e in QSignalMapper::mapped (this=this@entry=0x23abde0, _t1=8) at .moc/release-shared/moc_qsignalmapper.cpp:114
#18 0x00007fe8a3b7a756 in QSignalMapper::map (this=0x23abde0, sender=0x238e280) at kernel/qsignalmapper.cpp:266
#19 0x00007fe8a3b72f78 in QMetaObject::activate (sender=sender@entry=0x238e280, m=m@entry=0x7fe8a37b3400 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff680c9040) at kernel/qobject.cpp:3547
#20 0x00007fe8a3330b22 in QAbstractButton::clicked (this=this@entry=0x238e280, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#21 0x00007fe8a3096703 in QAbstractButtonPrivate::emitClicked (this=this@entry=0x2391b60) at widgets/qabstractbutton.cpp:548
#22 0x00007fe8a3097903 in QAbstractButtonPrivate::click (this=this@entry=0x2391b60) at widgets/qabstractbutton.cpp:541
#23 0x00007fe8a30979ec in QAbstractButton::mouseReleaseEvent (this=0x238e280, e=0x7fff680c9530) at widgets/qabstractbutton.cpp:1123
#24 0x00007fe8a2d39b1e in QWidget::event (this=0x238e280, event=0x7fff680c9530) at kernel/qwidget.cpp:8376
#25 0x00007fe8a2cea4dc in QApplicationPrivate::notify_helper (this=0x21e23b0, receiver=0x238e280, e=0x7fff680c9530) at kernel/qapplication.cpp:4562
#26 0x00007fe8a2cf0bdd in QApplication::notify (this=this@entry=0x7fff680c9e40, receiver=receiver@entry=0x238e280, e=e@entry=0x7fff680c9530) at kernel/qapplication.cpp:4105
#27 0x00007fe8a48565ba in KApplication::notify (this=0x7fff680c9e40, receiver=0x238e280, event=0x7fff680c9530) at /usr/src/debug/kdelibs-4.10.5/kdeui/kernel/kapplication.cpp:311
#28 0x00007fe8a3b5f26d in QCoreApplication::notifyInternal (this=0x7fff680c9e40, receiver=0x238e280, event=0x7fff680c9530) at kernel/qcoreapplication.cpp:949
#29 0x00007fe8a2cf0393 in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x238e280, event=event@entry=0x7fff680c9530, alienWidget=alienWidget@entry=0x238e280, nativeWidget=nativeWidget@entry=0x23ab710, buttonDown=buttonDown@entry=0x7fe8a37c5258 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at ../../src/corelib/kernel/qcoreapplication.h:231
#30 0x00007fe8a2d6192b in QETWidget::translateMouseEvent (this=this@entry=0x23ab710, event=event@entry=0x7fff680c98a0) at kernel/qapplication_x11.cpp:4538
#31 0x00007fe8a2d6039c in QApplication::x11ProcessEvent (this=0x7fff680c9e40, event=event@entry=0x7fff680c98a0) at kernel/qapplication_x11.cpp:3661
#32 0x00007fe8a2d86e54 in x11EventSourceDispatch (s=s@entry=0x21db730, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#33 0x00007fe89e3d4e06 in g_main_dispatch (context=0x21e25e0) at gmain.c:3054
#34 g_main_context_dispatch (context=context@entry=0x21e25e0) at gmain.c:3630
#35 0x00007fe89e3d5158 in g_main_context_iterate (context=context@entry=0x21e25e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#36 0x00007fe89e3d51fc in g_main_context_iteration (context=0x21e25e0, may_block=1) at gmain.c:3762
#37 0x00007fe8a3b8c145 in QEventDispatcherGlib::processEvents (this=0x21ba690, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#38 0x00007fe8a2d86fc6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#39 0x00007fe8a3b5decf in QEventLoop::processEvents (this=this@entry=0x7fff680c9c90, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fe8a3b5e1c5 in QEventLoop::exec (this=this@entry=0x7fff680c9c90, flags=...) at kernel/qeventloop.cpp:204
#41 0x00007fe8a318aa2c in QDialog::exec (this=this@entry=0x23ab710) at dialogs/qdialog.cpp:562
#42 0x00007fe8a4ecbd05 in kdemain (_argc=<optimized out>, _argv=<optimized out>) at /usr/src/debug/kde-runtime-4.10.5/kcmshell/main.cpp:297
#43 0x00007fe8a1d10b75 in __libc_start_main (main=0x400790 <main(int, char**)>, argc=2, ubp_av=0x7fff680c9f78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff680c9f68) at libc-start.c:258
#44 0x00000000004007c1 in _start ()

Reported using DrKonqi