Application: umbrello (2.4.5)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
I have selected all classes in class diagram and applied left alignment. I was not satisfied with result and I pressed undo several times until Umbrello crashed.

 -- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe1bbe69760 (LWP 4615))]

Thread 2 (Thread 0x7fe1aa987710 (LWP 4617)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007fe1aa986aa0 in ?? ()
#2  0x00007fff4bdfa852 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7fe1bbe69760 (LWP 4615)):
[KCrash Handler]
#5  0x00007fe1b8d562b2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#6  0x00007fe1b989b4d1 in QUndoStack::undo() () from /usr/lib/libQtGui.so.4
#7  0x00007fe1b98bea90 in QUndoStack::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtGui.so.4
#8  0x00007fe1b8d56036 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#9  0x00007fe1b9211a12 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
#10 0x00007fe1b9213a8b in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
#11 0x00007fe1b95cf5ba in ?? () from /usr/lib/libQtGui.so.4
#12 0x00007fe1b95cf86c in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#13 0x00007fe1b969bc6a in QToolButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#14 0x00007fe1b926df12 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#15 0x00007fe1b9217c0c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#16 0x00007fe1b921e8bb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#17 0x00007fe1ba622a16 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#18 0x00007fe1b8d42d9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#19 0x00007fe1b921da9e in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#20 0x00007fe1b929dba5 in ?? () from /usr/lib/libQtGui.so.4
#21 0x00007fe1b929c4ec in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007fe1b92c85a2 in ?? () from /usr/lib/libQtGui.so.4
#23 0x00007fe1b45958c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x00007fe1b4599748 in ?? () from /lib/libglib-2.0.so.0
#25 0x00007fe1b45998fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x00007fe1b8d6c3b3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#27 0x00007fe1b92c818e in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007fe1b8d416c2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00007fe1b8d41a9c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x00007fe1b8d4673b in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#31 0x0000000000b6c6c5 in ?? ()
#32 0x00007fe1b79a8c4d in __libc_start_main () from /lib/libc.so.6
#33 0x0000000000435839 in _start ()

This bug may be a duplicate of or related to bug 202436.

Possible duplicates by query: bug 245286, bug 241891, bug 241755, bug 238939, bug 238669.

Reported using DrKonqi