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 2.6.31-23-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
when a email account that is full local copy secure imap is fetching new mail, an error pops up indicating an error trying to enter a directory. The message indicates that there may be another user with that folder locked or other permisions issues. Kontact crashes after clicking the close button of that error message.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  KIO::Slave::deref (this=0xa760780) at ../../kio/kio/slave.cpp:242
#7  0x04b21af6 in KIO::Slave::gotInput (this=0xa760780) at ../../kio/kio/slave.cpp:335
#8  0x04b23ee3 in KIO::Slave::qt_metacall (this=0xa760780, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbfc0b7ac) at ./slave.moc:76
#9  0x05320263 in QMetaObject::activate (sender=0xa80dca0, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#10 0x05320ec2 in QMetaObject::activate (sender=0xa80dca0, m=0x4c148a0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#11 0x04a2bf97 in KIO::Connection::readyRead (this=0xa80dca0) at ./connection.moc:86
#12 0x04a2dd5e in KIO::ConnectionPrivate::dequeue (this=0xa6345d8) at ../../kio/kio/connection.cpp:82
#13 0x04a2de8e in KIO::Connection::qt_metacall (this=0xa80dca0, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xaa66920) at ./connection.moc:73
#14 0x05318f0b in QMetaCallEvent::placeMetaCall (this=0xae7df58, object=0xa80dca0) at kernel/qobject.cpp:477
#15 0x0531a5fe in QObject::event (this=0xa80dca0, e=0xae7df58) at kernel/qobject.cpp:1111
#16 0x00fc3f54 in QApplicationPrivate::notify_helper (this=0x90233b0, receiver=0xa80dca0, e=0xae7df58) at kernel/qapplication.cpp:4056
#17 0x00fcb67c in QApplication::notify (this=0xbfc0c044, receiver=0xa80dca0, e=0xae7df58) at kernel/qapplication.cpp:3603
#18 0x00ce3bfa in KApplication::notify (this=0xbfc0c044, receiver=0xa80dca0, event=0xae7df58) at ../../kdeui/kernel/kapplication.cpp:302
#19 0x0530a6cb in QCoreApplication::notifyInternal (this=0xbfc0c044, receiver=0xa80dca0, event=0xae7df58) at kernel/qcoreapplication.cpp:610
#20 0x0530b2b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8ff2820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8ff2820) at kernel/qcoreapplication.cpp:1247
#22 0x0530b47d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#23 0x053353ff in QCoreApplication::sendPostedEvents (s=0x9013900) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#24 postEventSourceDispatch (s=0x9013900) at kernel/qeventdispatcher_glib.cpp:210
#25 0x07d0fe88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0x07d13730 in ?? () from /lib/libglib-2.0.so.0
#27 0x07d13863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0x0533502c in QEventDispatcherGlib::processEvents (this=0x8ff29f8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#29 0x01064be5 in QGuiEventDispatcherGlib::processEvents (this=0x8ff29f8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#30 0x05308c79 in QEventLoop::processEvents (this=0xbfc0bfa4, flags=) at kernel/qeventloop.cpp:149
#31 0x053090ca in QEventLoop::exec (this=0xbfc0bfa4, flags=...) at kernel/qeventloop.cpp:201
#32 0x0530b53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#33 0x00fc3dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#34 0x0804b4e6 in main (argc=1, argv=0xbfc0c264) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi