Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-19-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Almost always occurs when I connect to a VPN and the connection to the mail server is interupted. Also, occurs at other times, but seems to be associated with interuption of conectivity to the mail server. I'm using Disconnected IMAP

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  KIO::Slave::deref (this=0x9eb2c10) at ../../kio/kio/slave.cpp:242
#7  0x01e7eaf6 in KIO::Slave::gotInput (this=0x9eb2c10) at ../../kio/kio/slave.cpp:335
#8  0x01e80ee3 in KIO::Slave::qt_metacall (this=0x9eb2c10, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbf92b68c) at ./slave.moc:76
#9  0x009ba263 in QMetaObject::activate (sender=0x9eb3650, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#10 0x009baec2 in QMetaObject::activate (sender=0x9eb3650, m=0x1f718a0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#11 0x01d88f97 in KIO::Connection::readyRead (this=0x9eb3650) at ./connection.moc:86
#12 0x01d8ad5e in KIO::ConnectionPrivate::dequeue (this=0x9eb36a8) at ../../kio/kio/connection.cpp:82
#13 0x01d8ae8e in KIO::Connection::qt_metacall (this=0x9eb3650, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xa0aa340) at ./connection.moc:73
#14 0x009b2f0b in QMetaCallEvent::placeMetaCall (this=0xa3b41e0, object=0x9eb3650) at kernel/qobject.cpp:477
#15 0x009b45fe in QObject::event (this=0x9eb3650, e=0xa3b41e0) at kernel/qobject.cpp:1111
#16 0x010d7f54 in QApplicationPrivate::notify_helper (this=0x93b03a8, receiver=0x9eb3650, e=0xa3b41e0) at kernel/qapplication.cpp:4056
#17 0x010df67c in QApplication::notify (this=0xbf92bf24, receiver=0x9eb3650, e=0xa3b41e0) at kernel/qapplication.cpp:3603
#18 0x00df7bfa in KApplication::notify (this=0xbf92bf24, receiver=0x9eb3650, event=0xa3b41e0) at ../../kdeui/kernel/kapplication.cpp:302
#19 0x009a46cb in QCoreApplication::notifyInternal (this=0xbf92bf24, receiver=0x9eb3650, event=0xa3b41e0) at kernel/qcoreapplication.cpp:610
#20 0x009a52b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9388820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9388820) at kernel/qcoreapplication.cpp:1247
#22 0x009a547d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#23 0x009cf3ff in QCoreApplication::sendPostedEvents (s=0x93b1190) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#24 postEventSourceDispatch (s=0x93b1190) at kernel/qeventdispatcher_glib.cpp:210
#25 0x08f9fe88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0x08fa3730 in ?? () from /lib/libglib-2.0.so.0
#27 0x08fa3863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0x009cf02c in QEventDispatcherGlib::processEvents (this=0x93889f8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#29 0x01178be5 in QGuiEventDispatcherGlib::processEvents (this=0x93889f8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#30 0x009a2c79 in QEventLoop::processEvents (this=0xbf92be84, flags=) at kernel/qeventloop.cpp:149
#31 0x009a30ca in QEventLoop::exec (this=0xbf92be84, flags=...) at kernel/qeventloop.cpp:201
#32 0x009a553f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#33 0x010d7dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#34 0x0804b4e6 in main (argc=1, argv=0xbf92c144) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi