Application: kontact (4.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.31-1-686 i686
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
My home DSL reconnected, I got the usual pop-up informing me that the connection was lost and tried to look at an email half an hour later.

Said email did not load and I decided to restart Kontact; thus closing it.

Once I clicked close (upper right of the window decoration), Kontact crashed.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  ~CSSSelector (this=0xff000002, __in_chrg=<value optimized out>) at ../../khtml/css/css_base.h:81
#7  0xb5aba2bc in ~CSSSelector (this=0x9714028, __in_chrg=<value optimized out>) at ../../khtml/css/css_base.h:81
#8  qDeleteAll<QList<DOM::CSSSelector*>::const_iterator> (this=0x9714028, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#9  qDeleteAll<QList<DOM::CSSSelector*> > (this=0x9714028, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#10 ~CSSStyleRuleImpl (this=0x9714028, __in_chrg=<value optimized out>) at ../../khtml/css/css_ruleimpl.cpp:381
#11 0xb5ac6d57 in ~StyleListImpl (this=0xabd6ca8, __in_chrg=<value optimized out>) at ../../khtml/css/css_base.cpp:124
#12 0xb5ab3e12 in ~StyleSheetImpl (this=0xabd6ca8, __in_chrg=<value optimized out>) at ../../khtml/css/css_stylesheetimpl.cpp:83
#13 0xb5ab6f72 in ~CSSStyleSheetImpl (this=0xabd6ca8, __in_chrg=<value optimized out>) at ../../khtml/css/css_stylesheetimpl.h:91
#14 0xb5ad7a2b in ~CSSStyleSelector (this=0xb39d5d0, __in_chrg=<value optimized out>) at ../../khtml/css/cssstyleselector.cpp:354
#15 0xb5989e68 in ~DocumentImpl (this=0x93be200, __in_chrg=<value optimized out>) at ../../khtml/xml/dom_docimpl.cpp:522
#16 0xb59f3693 in ~HTMLDocumentImpl (this=0x93be200, __in_chrg=<value optimized out>) at ../../khtml/html/html_documentimpl.cpp:81
#17 0xb5980330 in DOM::DocumentImpl::removedLastRef (this=0x93be200) at ../../khtml/xml/dom_docimpl.cpp:502
#18 0xb592931f in khtml::TreeShared<DOM::EventTargetImpl>::deref (this=0x9faa5c0) at ../../khtml/misc/shared.h:65
#19 KHTMLPart::clear (this=0x9faa5c0) at ../../khtml/khtml_part.cpp:1570
#20 0xb592bd20 in ~KHTMLPart (this=0x9faa5c0, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../khtml/khtml_part.cpp:603
#21 0xb5ecf470 in KParts::Part::slotWidgetDestroyed (this=0x9faa5c0) at ../../kparts/part.cpp:354
#22 0xb5ecf57b in KParts::Part::qt_metacall (this=0x9faa5c0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbfea4c58) at ./part.moc:82
#23 0xb5ed050a in KParts::ReadOnlyPart::qt_metacall (this=0x9faa5c0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbfea4c58) at ./part.moc:166
#24 0xb5941c7a in KHTMLPart::qt_metacall (this=0x9faa5c0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbfea4c58) at ./khtml_part.moc:252
#25 0xb6d4696a in QMetaObject::metacall (object=0x9faa5c0, cl=3053683648, idx=6, argv=0xbfea4c58) at kernel/qmetaobject.cpp:237
#26 0xb6d54f45 in QMetaObject::activate (sender=0x9fb0918, m=0xb6e4fb70, local_signal_index=0, argv=0xbfea4c58) at kernel/qobject.cpp:3293
#27 0xb6d55343 in QObject::destroyed (this=0x9fb0918, _t1=0x9fb0918) at .moc/release-shared/moc_qobject.cpp:149
#28 0xb6d57b0a in ~QObject (this=0x9fb0918, __in_chrg=<value optimized out>) at kernel/qobject.cpp:869
#29 0xb62eceb6 in ~QWidget (this=0x9fb0918, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1485
#30 0xb6d50cff in QObjectPrivate::deleteChildren (this=0x9fa7fb8) at kernel/qobject.cpp:1986
#31 0xb62ed973 in ~QWidget (this=0x9fa7850, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#32 0xb66de861 in ~QFrame (this=0x9fa7850, __in_chrg=<value optimized out>) at widgets/qframe.cpp:242
#33 0xb7367ee5 in ~KHBox (this=0x9fa7850, __in_chrg=<value optimized out>) at ../../kdeui/widgets/khbox.cpp:51
#34 0xb6d50cff in QObjectPrivate::deleteChildren (this=0x9fa4248) at kernel/qobject.cpp:1986
#35 0xb62ed973 in ~QWidget (this=0x9e047a8, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#36 0xb66de861 in ~QFrame (this=0x9e047a8, __in_chrg=<value optimized out>) at widgets/qframe.cpp:242
#37 0xb6748cf3 in ~QSplitter (this=0x9e047a8, __in_chrg=<value optimized out>) at widgets/qsplitter.cpp:1029
#38 0xb6d50cff in QObjectPrivate::deleteChildren (this=0x9fa3e78) at kernel/qobject.cpp:1986
#39 0xb62ed973 in ~QWidget (this=0x9fa3cf8, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#40 0xaffc3e6e in ~KMReaderWin (this=0x9fa3cf8, __in_chrg=<value optimized out>) at ../../kmail/kmreaderwin.cpp:883
#41 0xb6d50cff in QObjectPrivate::deleteChildren (this=0xa156b40) at kernel/qobject.cpp:1986
#42 0xb62ed973 in ~QWidget (this=0x96b79b8, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#43 0xb66de861 in ~QFrame (this=0x96b79b8, __in_chrg=<value optimized out>) at widgets/qframe.cpp:242
#44 0xb6748cf3 in ~QSplitter (this=0x96b79b8, __in_chrg=<value optimized out>) at widgets/qsplitter.cpp:1029
#45 0xb6d50cff in QObjectPrivate::deleteChildren (this=0xa0c5180) at kernel/qobject.cpp:1986
#46 0xb62ed973 in ~QWidget (this=0xa0830e8, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1469
#47 0xb66de861 in ~QFrame (this=0xa0830e8, __in_chrg=<value optimized out>) at widgets/qframe.cpp:242
#48 0xb6748cf3 in ~QSplitter (this=0xa0830e8, __in_chrg=<value optimized out>) at widgets/qsplitter.cpp:1029
#49 0xb01b3e1c in KMMainWidget::deleteWidgets (this=0x9f6d948) at ../../kmail/kmmainwidget.cpp:680
#50 0xb01b5ec3 in KMMainWidget::destruct (this=0x9f6d948) at ../../kmail/kmmainwidget.cpp:301
#51 0xb05af230 in ~KMailPart (this=0x9761b78, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../kmail/kmail_part.cpp:142
#52 0xb7621c39 in ~Plugin (this=0x97a0d08, __vtt_parm=0xb0627144, __in_chrg=<value optimized out>) at ../../kontactinterface/plugin.cpp:90
#53 0xb0619bc2 in ~KMailPlugin (this=0x97a0d08, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../../kontact/plugins/kmail/kmail_plugin.cpp:159
#54 0xb77adf76 in ~MainWindow (this=0x93658a0, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../kontact/src/mainwindow.cpp:258
#55 0xb6d508d5 in qDeleteInEventHandler (o=0x3) at kernel/qobject.cpp:3998
#56 0xb6d51f98 in QObject::event (this=0x93658a0, e=0xff000002) at kernel/qobject.cpp:1231
#57 0xb62e58c6 in QWidget::event (this=0x93658a0, event=0xac5cde8) at kernel/qwidget.cpp:8455
#58 0xb66fd1f7 in QMainWindow::event (this=0x93658a0, event=0xac5cde8) at widgets/qmainwindow.cpp:1433
#59 0xb73805b4 in KMainWindow::event (this=0x93658a0, ev=0xac5cde8) at ../../kdeui/widgets/kmainwindow.cpp:1103
#60 0xb73c830f in KXmlGuiWindow::event (this=0x93658a0, ev=0xac5cde8) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:131
#61 0xb6287bec in QApplicationPrivate::notify_helper (this=0x9364b10, receiver=0x93658a0, e=0xac5cde8) at kernel/qapplication.cpp:4300
#62 0xb628e7d9 in QApplication::notify (this=0xbfea5e54, receiver=0x93658a0, e=0xac5cde8) at kernel/qapplication.cpp:4265
#63 0xb728f7aa in KApplication::notify (this=0xbfea5e54, receiver=0x93658a0, event=0xac5cde8) at ../../kdeui/kernel/kapplication.cpp:302
#64 0xb6d4176b in QCoreApplication::notifyInternal (this=0xbfea5e54, receiver=0x93658a0, event=0xac5cde8) at kernel/qcoreapplication.cpp:704
#65 0xb6d44143 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9344dc8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#66 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9344dc8) at kernel/qcoreapplication.cpp:1345
#67 0xb6d442ad in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#68 0xb6d6d69f in QCoreApplication::sendPostedEvents (s=0x936b510) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#69 postEventSourceDispatch (s=0x936b510) at kernel/qeventdispatcher_glib.cpp:276
#70 0xb41f0b38 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#71 0xb41f43d0 in ?? () from /lib/libglib-2.0.so.0
#72 0xb41f4503 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#73 0xb6d6d195 in QEventDispatcherGlib::processEvents (this=0x9344a88, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#74 0xb6346145 in QGuiEventDispatcherGlib::processEvents (this=0x9344a88, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#75 0xb6d3fd89 in QEventLoop::processEvents (this=0xbfea5db4, flags=) at kernel/qeventloop.cpp:149
#76 0xb6d401da in QEventLoop::exec (this=0xbfea5db4, flags=...) at kernel/qeventloop.cpp:201
#77 0xb6d4436f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#78 0xb6287c87 in QApplication::exec () at kernel/qapplication.cpp:3579
#79 0x0804b472 in main (argc=1, argv=0xbfea6054) at ../../../kontact/src/main.cpp:224

Reported using DrKonqi