Application that crashed: kontact
Version of the application: 4.3.0
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I returned to Kontact after leaving it overnight. There was a dialog telling me that the IMAP connection was disconnected and would be re-established if possible (disconnected IMAP account). I ticked the box to supress the message in future and then clicked OK. This is when Kontact crashed.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  KIO::Slave::deref (this=0x5014430) at /build/buildd/kde4libs-4.3.0/kio/kio/slave.cpp:242
#6  0x00007f869468b16f in KIO::Slave::gotInput (this=0x5014430) at /build/buildd/kde4libs-4.3.0/kio/kio/slave.cpp:335
#7  0x00007f869468d3c8 in KIO::Slave::qt_metacall (this=0x5014430, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fff9fc33330) at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kio/slave.moc:76
#8  0x00007f869218cea2 in QMetaObject::activate (sender=0x50105b0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x5cdcac0) at kernel/qobject.cpp:3113
#9  0x00007f86945a8801 in KIO::ConnectionPrivate::dequeue (this=0x50107f0) at /build/buildd/kde4libs-4.3.0/kio/kio/connection.cpp:82
#10 0x00007f86945a8c5a in KIO::Connection::qt_metacall (this=0x50105b0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x5047ab0)
    at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kio/connection.moc:73
#11 0x00007f86921875d8 in QObject::event (this=0x50105b0, e=0x5724560) at kernel/qobject.cpp:1111
#12 0x00007f8692cf5f4d in QApplicationPrivate::notify_helper (this=0x1fa5060, receiver=0x50105b0, e=0x5724560) at kernel/qapplication.cpp:4056
#13 0x00007f8692cfe18a in QApplication::notify (this=0x7fff9fc33d90, receiver=0x50105b0, e=0x5724560) at kernel/qapplication.cpp:4021
#14 0x00007f86940fa71b in KApplication::notify (this=0x7fff9fc33d90, receiver=0x50105b0, event=0x5724560) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#15 0x00007f86921776ac in QCoreApplication::notifyInternal (this=0x7fff9fc33d90, receiver=0x50105b0, event=0x5724560) at kernel/qcoreapplication.cpp:610
#16 0x00007f869217831a in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1f73850) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#17 0x00007f86921a0e03 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#18 0x00007f868b8c820a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00007f868b8cb8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00007f868b8cba7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#21 0x00007f86921a0a8f in QEventDispatcherGlib::processEvents (this=0x1f730a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#22 0x00007f8692d8ebdf in QGuiEventDispatcherGlib::processEvents (this=0x1273, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#23 0x00007f8692175f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1614594896}) at kernel/qeventloop.cpp:149
#24 0x00007f8692176314 in QEventLoop::exec (this=0x7fff9fc33cf0, flags={i = -1614594816}) at kernel/qeventloop.cpp:201
#25 0x00007f86921785e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#26 0x0000000000404945 in main (argc=1, argv=0x7fff9fc34478) at /build/buildd/kdepim-4.3.0/kontact/src/main.cpp:218

This bug may be a duplicate of or related to bug 204654

Reported using DrKonqi