Application: umbrello (2.8.3)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.1
Operating System: Linux 3.2.12-gentoo x86_64
Distribution: "Gentoo Base System release 2.1"

-- Information about the crash:
- What I was doing when the application crashed:
Opened umbrello both from the command-line and from the KDE launch button. This was both after running KDE for several days (fresh after updating from 4.8.1 to 4.8.3) and from rebooting after a kernel update (umbrello was the first app launched).

The crash can be reproduced every time.

-- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Aborted
[KCrash Handler]
#6  0x00007f6a3b877ab5 in raise () from /lib64/libc.so.6
#7  0x00007f6a3b878db5 in abort () from /lib64/libc.so.6
#8  0x00007f6a3c6051e4 in qt_message_output (msgType=<optimized out>, buf=<optimized out>) at global/qglobal.cpp:2252
#9  0x00007f6a3c60537d in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=QtFatalMsg, msg=0x7f6a3c7893b8 "ASSERT failure in %s: \"%s\", file %s, line %d", ap=0x7fff899d4440) at global/qglobal.cpp:2298
#10 0x00007f6a3c605515 in qFatal (msg=<optimized out>) at global/qglobal.cpp:2481
#11 0x00007f6a3d95ccd7 in at (i=8, this=0x1f6a5c8) at ../../include/QtCore/../../src/corelib/tools/qvector.h:351
#12 QTreeViewPrivate::itemHeight (this=0x1f6a1b0, item=8) at itemviews/qtreeview.cpp:3278
#13 0x00007f6a3d95daa5 in QTreeViewPrivate::coordinateForItem (this=0x1f6a1b0, item=6) at itemviews/qtreeview.cpp:3330
#14 0x00007f6a3d9601a4 in QTreeView::visualRect (this=0x1f65890, index=<optimized out>) at itemviews/qtreeview.cpp:1067
#15 0x00007f6a3d9120cc in QAbstractItemView::update (this=<optimized out>, index=<optimized out>) at itemviews/qabstractitemview.cpp:3162
#16 0x00007f6a3d9182de in QAbstractItemView::dataChanged (this=0x1f65890, topLeft=..., bottomRight=<optimized out>) at itemviews/qabstractitemview.cpp:3192
#17 0x00007f6a3c735d71 in QMetaObject::activate (sender=0x1f74650, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff899d4800) at kernel/qobject.cpp:3547
#18 0x00007f6a3c784db7 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>) at .moc/debug-shared/moc_qabstractitemmodel.cpp:164
#19 0x00007f6a3d999725 in QTreeModel::emitDataChanged (this=0x1f74650, item=0x1f7b130, column=0) at itemviews/qtreewidget.cpp:796
#20 0x00007f6a3d99cf29 in QTreeWidgetItem::setData (this=0x1f7b130, column=0, role=1, value=...) at itemviews/qtreewidget.cpp:1755
#21 0x00000000007a39df in UMLListViewItem::setIcon(Icon_Utils::IconType) ()
#22 0x00000000007a23ac in UMLListView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#23 0x00007f6a3c735d71 in QMetaObject::activate (sender=0x1f65890, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff899d4c20) at kernel/qobject.cpp:3547
#24 0x00007f6a3d998f22 in QTreeWidget::itemCollapsed (this=<optimized out>, _t1=0x1f7b130) at .moc/debug-shared/moc_qtreewidget.cpp:263
#25 0x00007f6a3c735d71 in QMetaObject::activate (sender=0x1f65890, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff899d4d80) at kernel/qobject.cpp:3547
#26 0x00007f6a3d95a4d5 in QTreeView::collapsed (this=<optimized out>, _t1=<optimized out>) at .moc/debug-shared/moc_qtreeview.cpp:222
#27 0x00007f6a3d961196 in QTreeViewPrivate::collapse (this=0x1f6a1b0, item=6, emitSignal=true) at itemviews/qtreeview.cpp:3013
#28 0x00007f6a3d961317 in QTreeView::collapse (this=0x1f65890, index=...) at itemviews/qtreeview.cpp:792
#29 0x00007f6a3d99a42e in QTreeWidget::setItemExpanded (this=<optimized out>, item=0x1f7b130, expand=false) at itemviews/qtreewidget.cpp:3144
#30 0x00000000007a3ae9 in UMLListViewItem::setOpen(bool) ()
#31 0x000000000077e723 in UMLDoc::createDatatype(QString const&) ()
#32 0x000000000078a0c3 in UMLDoc::addDefaultDatatypes() ()
#33 0x0000000000771004 in UMLApp::setGenerator(Uml::ProgrammingLanguage) ()
#34 0x00000000007710bd in UMLApp::initGenerator() ()
#35 0x0000000000785979 in UMLDoc::newDocument() ()
#36 0x0000000000775160 in UMLApp::newDocument() ()
#37 0x000000000073cb00 in initDocument(KCmdLineArgs*) ()
#38 0x000000000073db5e in main ()

This bug may be a duplicate of or related to bug 296300.

Possible duplicates by query: bug 296300.

Reported using DrKonqi