Application: umbrello (2.4.5)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.33.6-147.fc13.i686.PAE i686
Distribution (Platform): Fedora RPMs

-- Information about the crash:
while working on class diagram, After several undo has been done, umbrello crashes once the redo is clicked. 

 -- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
[KCrash Handler]
#6  ref (this=0x9388958) at ../../src/corelib/arch/qatomic_i386.h:120
#7  QString (this=0x9388958) at ../../src/corelib/tools/qstring.h:715
#8  QUndoCommand::text (this=0x9388958) at util/qundostack.cpp:241
#9  0x061caba8 in QUndoStack::undoText (this=0x917a358) at util/qundostack.cpp:795
#10 0x061cba63 in QUndoStackPrivate::setIndex (this=0x917a368, idx=13, clean=false) at util/qundostack.cpp:401
#11 0x061cbd7d in QUndoStack::redo (this=0x917a358) at util/qundostack.cpp:685
#12 0x061f1fc3 in QUndoStack::qt_metacall (this=0x917a358, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbf97bd38) at .moc/release-shared/moc_qundostack.cpp:106
#13 0x069972d3 in KUndoStack::qt_metacall (this=0x917a358, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbf97bd38) at /usr/src/debug/kdelibs-4.4.5/i686-redhat-linux-gnu/kdeui/kundostack.moc:64
#14 0x055a7bcb in QMetaObject::metacall (object=0x917a358, cl=QMetaObject::InvokeMetaMethod, idx=13, argv=0xbf97bd38) at kernel/qmetaobject.cpp:237
#15 0x055b6a75 in QMetaObject::activate (sender=0x915cbe0, m=0x640b038, local_signal_index=1, argv=0xbf97bd38) at kernel/qobject.cpp:3295
#16 0x05b17e6a in QAction::triggered (this=0x915cbe0, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#17 0x05b197fc in QAction::activate (this=0x915cbe0, event=QAction::Trigger) at kernel/qaction.cpp:1255
#18 0x05fca753 in trigger (this=0x92bf358) at ../../src/gui/kernel/qaction.h:218
#19 QToolButton::nextCheckState (this=0x92bf358) at widgets/qtoolbutton.cpp:1147
#20 0x05ef8904 in QAbstractButtonPrivate::click (this=0x92bf560) at widgets/qabstractbutton.cpp:528
#21 0x05ef8c0e in QAbstractButton::mouseReleaseEvent (this=0x92bf358, e=0xbf97c4b0) at widgets/qabstractbutton.cpp:1121
#22 0x05fcac0d in QToolButton::mouseReleaseEvent (this=0x92bf358, e=0xbf97c4b0) at widgets/qtoolbutton.cpp:721
#23 0x05b7061d in QWidget::event (this=0x92bf358, event=0xbf97c4b0) at kernel/qwidget.cpp:8044
#24 0x05ef749f in QAbstractButton::event (this=0x92bf358, e=0xbf97c4b0) at widgets/qabstractbutton.cpp:1080
#25 0x05fcd2eb in QToolButton::event (this=0x92bf358, event=0xbf97c4b0) at widgets/qtoolbutton.cpp:1163
#26 0x05b1d77c in QApplicationPrivate::notify_helper (this=0x900fa98, receiver=0x92bf358, e=0xbf97c4b0) at kernel/qapplication.cpp:4306
#27 0x05b24d7e in QApplication::notify (this=0xbf97cd60, receiver=0x92bf358, e=0xbf97c4b0) at kernel/qapplication.cpp:3871
#28 0x068fc00b in KApplication::notify (this=0xbf97cd60, receiver=0x92bf358, event=0xbf97c4b0) at /usr/src/debug/kdelibs-4.4.5/kdeui/kernel/kapplication.cpp:302
#29 0x055a3133 in QCoreApplication::notifyInternal (this=0xbf97cd60, receiver=0x92bf358, event=0xbf97c4b0) at kernel/qcoreapplication.cpp:726
#30 0x05b23ae8 in sendEvent (receiver=0x92bf358, event=0xbf97c4b0, alienWidget=0x92bf358, nativeWidget=0x92bbf58, buttonDown=0x6426318, lastMouseReceiver=..., spontaneous=true)
    at ../../src/corelib/kernel/qcoreapplication.h:215
#31 QApplicationPrivate::sendMouseEvent (receiver=0x92bf358, event=0xbf97c4b0, alienWidget=0x92bf358, nativeWidget=0x92bbf58, buttonDown=0x6426318, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2971
#32 0x05ba12f0 in QETWidget::translateMouseEvent (this=0x92bbf58, event=0xbf97c9cc) at kernel/qapplication_x11.cpp:4380
#33 0x05ba0743 in QApplication::x11ProcessEvent (this=0xbf97cd60, event=0xbf97c9cc) at kernel/qapplication_x11.cpp:3391
#34 0x05bcc74a in x11EventSourceDispatch (s=0x9012c68, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#35 0x004f1525 in g_main_dispatch (context=0x9011e90) at gmain.c:1960
#36 IA__g_main_context_dispatch (context=0x9011e90) at gmain.c:2513
#37 0x004f5268 in g_main_context_iterate (context=0x449490, block=1, dispatch=1, self=0x900fce0) at gmain.c:2591
#38 0x004f5449 in IA__g_main_context_iteration (context=0x9011e90, may_block=1) at gmain.c:2654
#39 0x055cb446 in QEventDispatcherGlib::processEvents (this=0x8ff2418, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#40 0x05bcc336 in QGuiEventDispatcherGlib::processEvents (this=0x8ff2418, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x055a180a in QEventLoop::processEvents (this=0xbf97ccc4, flags=...) at kernel/qeventloop.cpp:149
#42 0x055a1b4a in QEventLoop::exec (this=0xbf97ccc4, flags=...) at kernel/qeventloop.cpp:201
#43 0x055a5807 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#44 0x05b1d828 in QApplication::exec () at kernel/qapplication.cpp:3585
#45 0x0876ae1d in main (argc=1, argv=0x1b) at /usr/src/debug/kdesdk-4.4.5/umbrello/umbrello/main.cpp:111

This bug may be a duplicate of or related to bug 237583.

Possible duplicates by query: bug 237583, bug 229635, bug 214309.

Reported using DrKonqi