Bug 213814 - foreign key creation save
Summary: foreign key creation save
Status: RESOLVED DUPLICATE of bug 191396
Alias: None
Product: umbrello
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Unlisted Binaries Linux
: NOR crash
Target Milestone: ---
Assignee: Umbrello Development Group
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-11-09 07:37 UTC by Tim
Modified: 2012-07-06 00:07 UTC (History)
6 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
model that crashes umbrello (34.66 KB, application/octet-stream)
2010-01-20 03:11 UTC, p92
Details
stacktrace + threadtrace (160.90 KB, text/plain)
2010-01-20 03:24 UTC, p92
Details
New crash information added by DrKonqi (15.51 KB, text/plain)
2010-09-07 14:20 UTC, Eric Janz
Details

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Description Tim 2009-11-09 07:37:19 UTC
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 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Created an ER diagram with three entities.  Populated entities with elements.  When adding a foreign key constraint to an entity, umbrello crashes when pressing apply or save.  Always happens.  I have tried restarting kubuntu and closing all other applications, but I get the same problem.

 -- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
[KCrash Handler]
#6  0x014a0e4b in QString::at (text=...) at ../../include/QtCore/../../src/corelib/tools/qstring.h:685
#7  Qt::mightBeRichText (text=...) at text/qtextdocument.cpp:113
#8  0x016d7b80 in QTextEdit::setText (this=0xa9fa610, text=...) at widgets/qtextedit.cpp:2458
#9  0x080a4ab7 in _start ()

Reported using DrKonqi
Comment 1 Dario Andres 2009-11-10 14:12:19 UTC
- If you can reproduce the crash at will (or you experience this regularly), can you install the "kdesdk-dbg" package and post a complete backtrace here? Thanks
Comment 2 Tim 2009-11-10 23:06:02 UTC
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
[KCrash Handler]
#6  0x010a8e4b in QString::at (text=...) at ../../include/QtCore/../../src/corelib/tools/qstring.h:685
#7  Qt::mightBeRichText (text=...) at text/qtextdocument.cpp:113
#8  0x012dfb80 in QTextEdit::setText (this=0xa3137f0, text=...) at widgets/qtextedit.cpp:2458
#9  0x080a4ab7 in ClassifierListPage::slotActivateItem (this=0xa34e230, item=0xa466af8) at ../../../umbrello/umbrello/dialogs/classifierlistpage.cpp:350
#10 0x080a7b6c in ClassifierListPage::qt_metacall (this=0xa34e230, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfce1e44) at ./classifierlistpage.moc:88
#11 0x080a803c in ConstraintListPage::qt_metacall (this=0xa34e230, _c=QMetaObject::InvokeMetaMethod, _id=27, _a=0xbfce1e44) at ./constraintlistpage.moc:67
#12 0x0435b263 in QMetaObject::activate (sender=0xa34e420, from_signal_index=76, to_signal_index=76, argv=0xbfce1e44) at kernel/qobject.cpp:3113
#13 0x0435bec2 in QMetaObject::activate (sender=0xa34e420, m=0x16c6428, local_signal_index=6, argv=0xbfce1e44) at kernel/qobject.cpp:3187
#14 0x0140c1c9 in QListWidget::currentItemChanged (this=0xa34e420, _t1=0xa466af8, _t2=0xa30a048) at .moc/release-shared/moc_qlistwidget.cpp:227
#15 0x01410d41 in QListWidgetPrivate::_q_emitCurrentItemChanged (this=0xa438438, current=..., previous=...) at itemviews/qlistwidget.cpp:1070
#16 0x014126e8 in QListWidget::qt_metacall (this=0xa34e420, _c=QMetaObject::InvokeMetaMethod, _id=19, _a=0xbfce1fb4) at .moc/release-shared/moc_qlistwidget.cpp:141
#17 0x0435b263 in QMetaObject::activate (sender=0xa3ea970, from_signal_index=5, to_signal_index=5, argv=0xbfce1fb4) at kernel/qobject.cpp:3113
#18 0x0435bec2 in QMetaObject::activate (sender=0xa3ea970, m=0x16c6290, local_signal_index=1, argv=0xbfce1fb4) at kernel/qobject.cpp:3187
#19 0x013fa069 in QItemSelectionModel::currentChanged (this=0xa3ea970, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:153
#20 0x013fa202 in QItemSelectionModel::setCurrentIndex (this=0xa3ea970, index=..., command=...) at itemviews/qitemselectionmodel.cpp:1123
#21 0x0140fa0d in QListWidget::setCurrentRow (this=0xa34e420, row=1) at itemviews/qlistwidget.cpp:1437
#22 0x0140fea5 in QListWidget::setCurrentItem (this=0xa34e420, item=0xa466af8) at itemviews/qlistwidget.cpp:1408
#23 0x080a4f1a in ClassifierListPage::slotListItemCreated (this=0xa34e230, object=0xa480238) at ../../../umbrello/umbrello/dialogs/classifierlistpage.cpp:396
#24 0x080a7bac in ClassifierListPage::qt_metacall (this=0xa34e230, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbfce2278) at ./classifierlistpage.moc:90
#25 0x080a803c in ConstraintListPage::qt_metacall (this=0xa34e230, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbfce2278) at ./constraintlistpage.moc:67
#26 0x0435b263 in QMetaObject::activate (sender=0xa10c430, from_signal_index=8, to_signal_index=8, argv=0xbfce2278) at kernel/qobject.cpp:3113
#27 0x0435bec2 in QMetaObject::activate (sender=0xa10c430, m=0x87daa40, local_signal_index=4, argv=0xbfce2278) at kernel/qobject.cpp:3187
#28 0x08725a25 in UMLDoc::sigObjectCreated (this=0xa10c430, _t1=0xa480238) at ./umldoc.moc:147
#29 0x086c2689 in UMLEntity::createForeignKeyConstraint (this=0xa439cc8, name=...) at ../../../umbrello/umbrello/entity.cpp:244
#30 0x086f5c98 in Object_Factory::createChildObject (parent=0xa439cc8, type=Uml::ot_ForeignKeyConstraint) at ../../../umbrello/umbrello/object_factory.cpp:285
#31 0x080a3d28 in ClassifierListPage::slotNewListItem (this=0xa34e230) at ../../../umbrello/umbrello/dialogs/classifierlistpage.cpp:731
#32 0x080a7e19 in ConstraintListPage::slotNewForeignKeyConstraint (this=0xa34e230) at ../../../umbrello/umbrello/dialogs/constraintlistpage.cpp:120
#33 0x080a808b in ConstraintListPage::qt_metacall (this=0xa34e230, _c=QMetaObject::InvokeMetaMethod, _id=42, _a=0xbfce2538) at ./constraintlistpage.moc:74
#34 0x0435b263 in QMetaObject::activate (sender=0xa4bf9f8, from_signal_index=5, to_signal_index=6, argv=0xbfce2538) at kernel/qobject.cpp:3113
#35 0x0435b6d8 in QMetaObject::activate (sender=0xa4bf9f8, m=0x16b9e48, from_local_signal_index=1, to_local_signal_index=2, argv=0xbfce2538) at kernel/qobject.cpp:3207
#36 0x00e519b1 in QAction::triggered (this=0xa4bf9f8, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#37 0x00e52f32 in QAction::activate (this=0xa4bf9f8, event=QAction::Trigger) at kernel/qaction.cpp:1160
#38 0x012a09cc in QMenuPrivate::activateCausedStack (this=0xa563a98, causedStack=..., action=0xa4bf9f8, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:967
#39 0x012a703b in QMenuPrivate::activateAction (this=0xa563a98, action=0xa4bf9f8, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1060
#40 0x012a7bf7 in QMenu::mouseReleaseEvent (this=0xa31f608, e=0xbfce2c90) at widgets/qmenu.cpp:2254
#41 0x00c621c5 in KMenu::mouseReleaseEvent (this=0xa31f608, e=0xbfce2c90) at ../../kdeui/widgets/kmenu.cpp:456
#42 0x00ead012 in QWidget::event (this=0xa31f608, event=0xbfce2c90) at kernel/qwidget.cpp:7549
#43 0x012a9e34 in QMenu::event (this=0xa31f608, e=0xbfce2c90) at widgets/qmenu.cpp:2353
#44 0x00e57f54 in QApplicationPrivate::notify_helper (this=0xa0713a8, receiver=0xa31f608, e=0xbfce2c90) at kernel/qapplication.cpp:4056
#45 0x00e60033 in QApplication::notify (this=0xbfce8c10, receiver=0xa31f608, e=0xbfce2c90) at kernel/qapplication.cpp:3758
#46 0x00b77bfa in KApplication::notify (this=0xbfce8c10, receiver=0xa31f608, event=0xbfce2c90) at ../../kdeui/kernel/kapplication.cpp:302
#47 0x043456cb in QCoreApplication::notifyInternal (this=0xbfce8c10, receiver=0xa31f608, event=0xbfce2c90) at kernel/qcoreapplication.cpp:610
#48 0x00e5ef6e in QCoreApplication::sendSpontaneousEvent (receiver=0xa31f608, event=0xbfce2c90, alienWidget=0x0, nativeWidget=0xa31f608, buttonDown=0x16d2aa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#49 QApplicationPrivate::sendMouseEvent (receiver=0xa31f608, event=0xbfce2c90, alienWidget=0x0, nativeWidget=0xa31f608, buttonDown=0x16d2aa0, lastMouseReceiver=...) at kernel/qapplication.cpp:2924
#50 0x00ecdc87 in QETWidget::translateMouseEvent (this=0xa31f608, event=0xbfce42dc) at kernel/qapplication_x11.cpp:4343
#51 0x00eccc4b in QApplication::x11ProcessEvent (this=0xbfce8c10, event=0xbfce42dc) at kernel/qapplication_x11.cpp:3428
#52 0x00ef9502 in x11EventSourceDispatch (s=0xa074568, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#53 0x061b8e78 in g_main_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#54 IA__g_main_context_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#55 0x061bc720 in g_main_context_iterate (context=0xa073690, block=<value optimized out>, dispatch=1, self=0xa0715e0) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#56 0x061bc853 in IA__g_main_context_iteration (context=0xa073690, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#57 0x0437002c in QEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#58 0x00ef8be5 in QGuiEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#59 0x04343c79 in QEventLoop::processEvents (this=0xbfce45d0, flags=) at kernel/qeventloop.cpp:149
#60 0x043440ca in QEventLoop::exec (this=0xbfce45d0, flags=...) at kernel/qeventloop.cpp:201
#61 0x012a9c9e in QMenu::exec (this=0xa31f608, p=..., action=0x0) at widgets/qmenu.cpp:1993
#62 0x012b61d5 in QPushButtonPrivate::_q_popupPressed (this=0xa4543a0) at widgets/qpushbutton.cpp:611
#63 0x012b7820 in QPushButton::qt_metacall (this=0xa313898, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfce473c) at .moc/release-shared/moc_qpushbutton.cpp:74
#64 0x0435b263 in QMetaObject::activate (sender=0xa313898, from_signal_index=27, to_signal_index=27, argv=0x0) at kernel/qobject.cpp:3113
#65 0x0435bec2 in QMetaObject::activate (sender=0xa313898, m=0x16cb0a4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#66 0x014e4c67 in QAbstractButton::pressed (this=0xa313898) at .moc/release-shared/moc_qabstractbutton.cpp:187
#67 0x0120d0f9 in QAbstractButtonPrivate::emitPressed (this=0xa4543a0) at widgets/qabstractbutton.cpp:557
#68 0x0120d2f1 in QAbstractButton::mousePressEvent (this=0xa313898, e=0xbfce4d30) at widgets/qabstractbutton.cpp:1092
#69 0x00eacff6 in QWidget::event (this=0xa313898, event=0xbfce4d30) at kernel/qwidget.cpp:7545
#70 0x0120d3ee in QAbstractButton::event (this=0xa313898, e=0x57c83d0) at widgets/qabstractbutton.cpp:1077
#71 0x012b766d in QPushButton::event (this=0xa313898, e=0xbfce4d30) at widgets/qpushbutton.cpp:662
#72 0x00e57f54 in QApplicationPrivate::notify_helper (this=0xa0713a8, receiver=0xa313898, e=0xbfce4d30) at kernel/qapplication.cpp:4056
#73 0x00e60033 in QApplication::notify (this=0xbfce8c10, receiver=0xa313898, e=0xbfce4d30) at kernel/qapplication.cpp:3758
#74 0x00b77bfa in KApplication::notify (this=0xbfce8c10, receiver=0xa313898, event=0xbfce4d30) at ../../kdeui/kernel/kapplication.cpp:302
#75 0x043456cb in QCoreApplication::notifyInternal (this=0xbfce8c10, receiver=0xa313898, event=0xbfce4d30) at kernel/qcoreapplication.cpp:610
#76 0x00e5ef6e in QCoreApplication::sendSpontaneousEvent (receiver=0xa313898, event=0xbfce4d30, alienWidget=0xa313898, nativeWidget=0xa2d28c0, buttonDown=0x16d2aa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#77 QApplicationPrivate::sendMouseEvent (receiver=0xa313898, event=0xbfce4d30, alienWidget=0xa313898, nativeWidget=0xa2d28c0, buttonDown=0x16d2aa0, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#78 0x00ecd7c0 in QETWidget::translateMouseEvent (this=0xa2d28c0, event=0xbfce637c) at kernel/qapplication_x11.cpp:4409
#79 0x00eccc4b in QApplication::x11ProcessEvent (this=0xbfce8c10, event=0xbfce637c) at kernel/qapplication_x11.cpp:3428
#80 0x00ef9502 in x11EventSourceDispatch (s=0xa074568, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#81 0x061b8e78 in g_main_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#82 IA__g_main_context_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#83 0x061bc720 in g_main_context_iterate (context=0xa073690, block=<value optimized out>, dispatch=1, self=0xa0715e0) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#84 0x061bc853 in IA__g_main_context_iteration (context=0xa073690, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#85 0x0437002c in QEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#86 0x00ef8be5 in QGuiEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#87 0x04343c79 in QEventLoop::processEvents (this=0xbfce6670, flags=) at kernel/qeventloop.cpp:149
#88 0x043440ca in QEventLoop::exec (this=0xbfce6670, flags=...) at kernel/qeventloop.cpp:201
#89 0x01344d53 in QDialog::exec (this=0xa2d28c0) at dialogs/qdialog.cpp:498
#90 0x08699ade in UMLWidget::showProperties (this=0xa448db8) at ../../../umbrello/umbrello/widgets/umlwidget.cpp:648
#91 0x0869b866 in UMLWidget::slotMenuSelection (this=0xa448db8, action=0xa4611b8) at ../../../umbrello/umbrello/widgets/umlwidget.cpp:292
#92 0x08698edf in UMLWidget::qt_metacall (this=0xa448db8, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfce68b8) at ./umlwidget.moc:87
#93 0x0435b263 in QMetaObject::activate (sender=0xa123d08, from_signal_index=29, to_signal_index=29, argv=0xbfce68b8) at kernel/qobject.cpp:3113
#94 0x0435bec2 in QMetaObject::activate (sender=0xa123d08, m=0x16c0048, local_signal_index=2, argv=0xbfce68b8) at kernel/qobject.cpp:3187
#95 0x0129f2c3 in QMenu::triggered (this=0xa123d08, _t1=0xa4611b8) at .moc/release-shared/moc_qmenu.cpp:158
#96 0x012a0aac in QMenuPrivate::_q_actionTriggered (this=0xa43b2d0) at widgets/qmenu.cpp:1088
#97 0x012a9846 in QMenu::qt_metacall (this=0xa123d08, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfce6ad8) at .moc/release-shared/moc_qmenu.cpp:99
#98 0x00c6396a in KMenu::qt_metacall (this=0xa123d08, _c=QMetaObject::InvokeMetaMethod, _id=35, _a=0xbfce6ad8) at ./kmenu.moc:70
#99 0x0435b263 in QMetaObject::activate (sender=0xa4611b8, from_signal_index=5, to_signal_index=6, argv=0xbfce6ad8) at kernel/qobject.cpp:3113
#100 0x0435b6d8 in QMetaObject::activate (sender=0xa4611b8, m=0x16b9e48, from_local_signal_index=1, to_local_signal_index=2, argv=0xbfce6ad8) at kernel/qobject.cpp:3207
#101 0x00e519b1 in QAction::triggered (this=0xa4611b8, _t1=false) at .moc/release-shared/moc_qaction.cpp:236
#102 0x00e52f32 in QAction::activate (this=0xa4611b8, event=QAction::Trigger) at kernel/qaction.cpp:1160
#103 0x012a09cc in QMenuPrivate::activateCausedStack (this=0xa43b2d0, causedStack=..., action=0xa4611b8, action_e=QAction::Trigger, self=true) at widgets/qmenu.cpp:967
#104 0x012a703b in QMenuPrivate::activateAction (this=0xa43b2d0, action=0xa4611b8, action_e=QAction::Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1060
#105 0x012a7bf7 in QMenu::mouseReleaseEvent (this=0xa123d08, e=0xbfce7230) at widgets/qmenu.cpp:2254
#106 0x00c621c5 in KMenu::mouseReleaseEvent (this=0xa123d08, e=0xbfce7230) at ../../kdeui/widgets/kmenu.cpp:456
#107 0x00ead012 in QWidget::event (this=0xa123d08, event=0xbfce7230) at kernel/qwidget.cpp:7549
#108 0x012a9e34 in QMenu::event (this=0xa123d08, e=0xbfce7230) at widgets/qmenu.cpp:2353
#109 0x00e57f54 in QApplicationPrivate::notify_helper (this=0xa0713a8, receiver=0xa123d08, e=0xbfce7230) at kernel/qapplication.cpp:4056
#110 0x00e60033 in QApplication::notify (this=0xbfce8c10, receiver=0xa123d08, e=0xbfce7230) at kernel/qapplication.cpp:3758
#111 0x00b77bfa in KApplication::notify (this=0xbfce8c10, receiver=0xa123d08, event=0xbfce7230) at ../../kdeui/kernel/kapplication.cpp:302
#112 0x043456cb in QCoreApplication::notifyInternal (this=0xbfce8c10, receiver=0xa123d08, event=0xbfce7230) at kernel/qcoreapplication.cpp:610
#113 0x00e5ef6e in QCoreApplication::sendSpontaneousEvent (receiver=0xa123d08, event=0xbfce7230, alienWidget=0x0, nativeWidget=0xa123d08, buttonDown=0x16d2aa0, lastMouseReceiver=...)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#114 QApplicationPrivate::sendMouseEvent (receiver=0xa123d08, event=0xbfce7230, alienWidget=0x0, nativeWidget=0xa123d08, buttonDown=0x16d2aa0, lastMouseReceiver=...) at kernel/qapplication.cpp:2924
#115 0x00ecdc87 in QETWidget::translateMouseEvent (this=0xa123d08, event=0xbfce887c) at kernel/qapplication_x11.cpp:4343
#116 0x00eccc4b in QApplication::x11ProcessEvent (this=0xbfce8c10, event=0xbfce887c) at kernel/qapplication_x11.cpp:3428
#117 0x00ef9502 in x11EventSourceDispatch (s=0xa074568, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#118 0x061b8e78 in g_main_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#119 IA__g_main_context_dispatch (context=0xa073690) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#120 0x061bc720 in g_main_context_iterate (context=0xa073690, block=<value optimized out>, dispatch=1, self=0xa0715e0) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#121 0x061bc853 in IA__g_main_context_iteration (context=0xa073690, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#122 0x0437002c in QEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#123 0x00ef8be5 in QGuiEventDispatcherGlib::processEvents (this=0xa0544e0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#124 0x04343c79 in QEventLoop::processEvents (this=0xbfce8b74, flags=) at kernel/qeventloop.cpp:149
#125 0x043440ca in QEventLoop::exec (this=0xbfce8b74, flags=...) at kernel/qeventloop.cpp:201
#126 0x0434653f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#127 0x00e57dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#128 0x086ec2b5 in main (argc=3, argv=0xbfce8dc4) at ../../../umbrello/umbrello/main.cpp:111
Comment 3 Dario Andres 2009-11-11 03:28:41 UTC
Thank you
Comment 4 p92 2010-01-20 03:11:49 UTC
Created attachment 40065 [details]
model that crashes umbrello

I also have this problem with umbrello 2.3.4

try to add a foreign key constraint to "evenements" entity on the "sessions" entity ==> crash

also try to copy then paste the "sessions" entity ==> crash
Comment 5 p92 2010-01-20 03:24:14 UTC
Created attachment 40067 [details]
stacktrace + threadtrace
Comment 6 p92 2010-01-20 03:25:20 UTC
so be it
Comment 7 Ralf Habacker 2010-01-20 08:07:13 UTC
One can see that  UMLObject::getDoc  get's an invalid pointer - 0x20 seems not to be in the regular data section 

In Thread 1 (Thread 27796):
 #0  QString (this=0x20) at /usr/include/qt4/QtCore/qstring.h:711
 No locals.
 #1  UMLObject::getDoc (this=0x20)
     at ../../../umbrello/umbrello/umlobject.cpp:408

at this level listItem ist set to 0x20 - seems not to be valid too

 #2  0x080a4ac5 in ClassifierListPage::slotActivateItem (this=0x9843520, 
     item=0x98f8aa0)
     at ../../../umbrello/umbrello/dialogs/classifierlistpage.cpp:350
         listItem = 0x20

and some levels above there is an invalid QEvent pointer  (=0x20) 

#62 0x011bf3ee in QAbstractButton::event (this=0x979a320, e=0x20)
     at widgets/qabstractbutton.cpp:1077

In the next level one can see that there is a QPushButton with an invalid d pointer (=0x20) 

 #63 0x0126966d in QPushButton::event (this=0x979a320, e=0xbfcf7890)
     at widgets/qpushbutton.cpp:662
         d = 0x20
Comment 8 Samuel Gilbert 2010-01-29 20:08:06 UTC
I get the exact same problem.  It's 100% reproducible.  I tried the same action sequence on the same file with Umbrello 2.3.4 and with 2.3.2 and both crashed exactly the same way.

Description of the actions taken :
- Create 2 entities : variable and unit
- Add a "id" attribute of type "SERIAL" to both entities and set it as the Primary Key
- Add a attribute named "unit" to variable
- Create a Foreign Key Constraint on referencing the id attribute of the unit variable with the unit attribute in the variable entity
- Click on "OK" and get the crash
Comment 9 Eric Janz 2010-09-07 14:20:00 UTC
Created attachment 51386 [details]
New crash information added by DrKonqi

Same problem on Ubuntu 10.04 running Umbrello on Gnome
After creating two entities, when creating a foreign key, Umbrello crashes when you press apply or save.
Comment 10 Jekyll Wu 2012-07-06 00:07:28 UTC

*** This bug has been marked as a duplicate of bug 191396 ***