Application that crashed: umbrello Version of the application: 2.3.2 KDE Version: 4.3.2 (KDE 4.3.2) Qt Version: 4.5.2 Operating System: Linux 2.6.31-20-generic x86_64 Distribution: Ubuntu 9.10 What I was doing when the application crashed: OS: Ubuntu 9.10 with gnome GNOME: 2.28.1 (Ubuntu) Umrello: 2.3.2 KDE: 4.3.2 I've just install Ubuntu a few days before, i was looking for an UML editor and i found Umbrello. I was just trying it doing a state diagram. I put de initial state, a state and i linked them with the transition arrow. I move arround the state and then (trying made the arrow look better) the arrow show a vertex, so i go undoing for it to desapier, but it didn't. After undoing betwen 10 ~ 20 times y redo some ones and it simply crash with a segmentation fault. -- Backtrace: Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault [KCrash Handler] #5 0x0000000002273420 in ?? () #6 0x00007f3821655af1 in QUndoStack::undo() () from /usr/lib/libQtGui.so.4 #7 0x00007f3821664700 in QUndoStack::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtGui.so.4 #8 0x00007f382074fddc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4 #9 0x00007f38210550a7 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4 #10 0x00007f38210564ef in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4 #11 0x00007f3821058fa7 in QAction::event(QEvent*) () from /usr/lib/libQtGui.so.4 #12 0x00007f382105aefc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #13 0x00007f38210621ce in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #14 0x00007f3822130ab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #15 0x00007f382073ac2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #16 0x00007f382108f666 in ?? () from /usr/lib/libQtGui.so.4 #17 0x00007f38210914f7 in ?? () from /usr/lib/libQtGui.so.4 #18 0x00007f3821062e6e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #19 0x00007f3822130ab6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5 #20 0x00007f382073ac2c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #21 0x00007f38210ebdfa in ?? () from /usr/lib/libQtGui.so.4 #22 0x00007f38210ee370 in ?? () from /usr/lib/libQtGui.so.4 #23 0x00007f38210c6493 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4 #24 0x00007f38210efd0c in ?? () from /usr/lib/libQtGui.so.4 #25 0x00007f381c19fbce in g_main_context_dispatch () from /lib/libglib-2.0.so.0 #26 0x00007f381c1a3598 in ?? () from /lib/libglib-2.0.so.0 #27 0x00007f381c1a36c0 in g_main_context_iteration () from /lib/libglib-2.0.so.0 #28 0x00007f38207631a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #29 0x00007f38210ef4be in ?? () from /usr/lib/libQtGui.so.4 #30 0x00007f3820739532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #31 0x00007f3820739904 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #32 0x00007f382073bab9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4 #33 0x0000000000bbe3e5 in ?? () #34 0x00007f381f5f4abd in __libc_start_main () from /lib/libc.so.6 #35 0x0000000000436599 in _start () This bug may be a duplicate of or related to bug 229635 Reported using DrKonqi