Application: loopy (0.5.3)
KDE Platform Version: 4.10.3 (Compiled from sources)
Qt Version: 4.8.4
Operating System: Linux 3.9.3-pf x86_64
Distribution: "NAME=Gentoo"

-- Information about the crash:
- What I was doing when the application crashed:
Right click to bottom toolbar, added repeat button, then click 'Apply'. After restart the button was there, however.

-- Backtrace:
Application: Loopy (loopy), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  QAction::setChecked (this=0xf70650, b=true) at kernel/qaction.cpp:1066
#7  0x00007f91db3ff0b3 in KXmlGuiWindow::applyMainWindowSettings (this=<optimized out>, config=..., force=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/xmlgui/kxmlguiwindow.cpp:353
#8  0x00007f91db40044f in KXmlGuiWindow::finalizeGUI (this=0x7dc970) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/xmlgui/kxmlguiwindow.cpp:343
#9  0x00007f91db40c7d4 in KXMLGUIFactory::addClient (this=0xf597b0, client=0x7dca78) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/xmlgui/kxmlguifactory.cpp:280
#10 0x00007f91db2671a7 in KDEPrivate::KEditToolBarWidget::rebuildKXMLGUIClients (this=0x1409f80) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/dialogs/kedittoolbar.cpp:899
#11 0x00007f91db2677cd in KDEPrivate::KEditToolBarWidget::save (this=0x1409f80) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/dialogs/kedittoolbar.cpp:846
#12 0x00007f91db2677fd in KEditToolBarPrivate::_k_slotApply (this=0x13e8f50) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/dialogs/kedittoolbar.cpp:683
#13 0x00007f91d8f30abc in QMetaObject::activate (sender=0x14224b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#14 0x00007f91db25ee89 in KDialog::slotButtonClicked (this=0x14224b0, button=8) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/dialogs/kdialog.cpp:888
#15 0x00007f91db25f3d1 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3_build/kdeui/kdialog.moc:167
#16 KDialog::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3_build/kdeui/kdialog.moc:127
#17 0x00007f91d8f30abc in QMetaObject::activate (sender=0x1431450, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9b699410) at kernel/qobject.cpp:3539
#18 0x00007f91d8f3793e in QSignalMapper::mapped (this=<optimized out>, _t1=8) at .moc/release-shared/moc_qsignalmapper.cpp:115
#19 0x00007f91d8f37eca in QSignalMapper::map (this=0x1431450, sender=0x14216c0) at kernel/qsignalmapper.cpp:266
#20 0x00007f91d8f30abc in QMetaObject::activate (sender=0x14216c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff9b6995a0) at kernel/qobject.cpp:3539
#21 0x00007f91da222b52 in QAbstractButton::clicked (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:220
#22 0x00007f91d9f68b0e in QAbstractButtonPrivate::emitClicked (this=<optimized out>) at widgets/qabstractbutton.cpp:548
#23 0x00007f91d9f69e52 in QAbstractButtonPrivate::click (this=0x141c190) at widgets/qabstractbutton.cpp:541
#24 0x00007f91d9f6a03e in QAbstractButton::mouseReleaseEvent (this=0x14216c0, e=0x7fff9b699ff0) at widgets/qabstractbutton.cpp:1123
#25 0x00007f91d9c02117 in QWidget::event (this=0x14216c0, event=0x7fff9b699ff0) at kernel/qwidget.cpp:8375
#26 0x00007f91d9bb34fa in notify_helper (e=0x7fff9b699ff0, receiver=0x14216c0, this=0x678360) at kernel/qapplication.cpp:4562
#27 QApplicationPrivate::notify_helper (this=0x678360, receiver=0x14216c0, e=0x7fff9b699ff0) at kernel/qapplication.cpp:4534
#28 0x00007f91d9bb866c in QApplication::notify (this=<optimized out>, receiver=0x14216c0, e=0x7fff9b699ff0) at kernel/qapplication.cpp:4105
#29 0x00007f91db305b1e in KApplication::notify (this=0x7fff9b69ab60, receiver=0x14216c0, event=0x7fff9b699ff0) at /var/tmp/portage/kde-base/kdelibs-4.10.3-r2/work/kdelibs-4.10.3/kdeui/kernel/kapplication.cpp:311
#30 0x00007f91d8f1cf04 in QCoreApplication::notifyInternal (this=0x7fff9b69ab60, receiver=0x14216c0, event=0x7fff9b699ff0) at kernel/qcoreapplication.cpp:946
#31 0x00007f91d9bb44d3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=0x14216c0, event=0x7fff9b699ff0, alienWidget=0x14216c0, nativeWidget=0x14224b0, buttonDown=0x14216c0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#33 0x00007f91d9c2db38 in QETWidget::translateMouseEvent (this=0x14224b0, event=<optimized out>) at kernel/qapplication_x11.cpp:4516
#34 0x00007f91d9c2c3ab in QApplication::x11ProcessEvent (this=0x7fff9b69ab60, event=0x7fff9b69a710) at kernel/qapplication_x11.cpp:3639
#35 0x00007f91d9c53732 in x11EventSourceDispatch (s=0x66b030, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007f91d5554819 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#37 0x00007f91d5554ab0 in g_main_context_iterate.clone.4 () from /usr/lib64/libglib-2.0.so.0
#38 0x00007f91d5554b49 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#39 0x00007f91d8f4a97b in QEventDispatcherGlib::processEvents (this=0x668aa0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#40 0x00007f91d9c533ce in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007f91d8f1bb69 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007f91d8f1be07 in QEventLoop::exec (this=0x7fff9b69aad0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007f91d8f20941 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#44 0x0000000000410ce6 in main ()

Reported using DrKonqi