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 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
What I was doing:
1) A mail arrived on one of my IMAP accounts. I viewed it.
2) I created a folder on another IMAP account and moved the mail to the new folder (from one IMAP account to another).
3) I was browsing around in my IMAP folder.
4) Switched to view the contents of the newly created IMAP folder in step 2.
5) Attempted to view the mail that was just moved to that folder.
6) Kmail crashed.

I realize that many other similar crashes have been reported already, but I wasn't able to find a stack dump in the other reports that looked like the one I'm reporting here. I hope the stack dump I'm reporting can help you track down the cause.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0x732d746c in ?? ()
#7  0xb461a4d9 in KMReaderWin::displayMessage (this=0x4e) at ../../kmail/kmreaderwin.cpp:1605
#8  0xb461a6cb in KMReaderWin::updateReaderWin (this=0x8a24520) at ../../kmail/kmreaderwin.cpp:1545
#9  0xb4624798 in KMReaderWin::update (this=0x8a24520, observable=0xa530798) at ../../kmail/kmreaderwin.cpp:947
#10 0xb487dad2 in KMail::ISubject::notify (this=0xc2f91f8) at ../../kmail/isubject.cpp:30
#11 0xb451be62 in KMMessage::updateBodyPart (this=0xc2f9188, partSpecifier=..., data=...) at ../../kmail/kmmessage.cpp:3235
#12 0xb484edd0 in KMail::ImapJob::slotGetMessageResult (this=0x907f318, job=0x932ff10) at ../../kmail/imapjob.cpp:435
#13 0xb485360f in KMail::ImapJob::qt_metacall (this=0x907f318, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfae9638) at ./imapjob.moc:82
#14 0x07e7f263 in QMetaObject::activate (sender=0x932ff10, from_signal_index=7, to_signal_index=7, argv=0xbfae9638) at kernel/qobject.cpp:3113
#15 0x07e7fec2 in QMetaObject::activate (sender=0x932ff10, m=0x34fd68, local_signal_index=3, argv=0xbfae9638) at kernel/qobject.cpp:3187
#16 0x001e9fe3 in KJob::result (this=0x932ff10, _t1=0x932ff10) at ./kjob.moc:188
#17 0x001ea469 in KJob::emitResult (this=0x932ff10) at ../../kdecore/jobs/kjob.cpp:304
#18 0x0616d660 in KIO::SimpleJob::slotFinished (this=0x932ff10) at ../../kio/kio/job.cpp:477
#19 0x0616db7a in KIO::TransferJob::slotFinished (this=0x932ff10) at ../../kio/kio/job.cpp:948
#20 0x0616b8a3 in KIO::TransferJob::qt_metacall (this=0x932ff10, _c=QMetaObject::InvokeMetaMethod, _id=47, _a=0xbfae989c) at ./jobclasses.moc:343
#21 0x07e7f263 in QMetaObject::activate (sender=0x90b80b8, from_signal_index=8, to_signal_index=8, argv=0x0) at kernel/qobject.cpp:3113
#22 0x07e7fec2 in QMetaObject::activate (sender=0x90b80b8, m=0x631ff64, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3187
#23 0x06237557 in KIO::SlaveInterface::finished (this=0x90b80b8) at ./slaveinterface.moc:165
#24 0x0623b44d in KIO::SlaveInterface::dispatch (this=0x90b80b8, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:175
#25 0x06237a13 in KIO::SlaveInterface::dispatch (this=0x90b80b8) at ../../kio/kio/slaveinterface.cpp:91
#26 0x06229aea in KIO::Slave::gotInput (this=0x90b80b8) at ../../kio/kio/slave.cpp:322
#27 0x0622bee3 in KIO::Slave::qt_metacall (this=0x90b80b8, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbfae9b7c) at ./slave.moc:76
#28 0x07e7f263 in QMetaObject::activate (sender=0x90a4ea8, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#29 0x07e7fec2 in QMetaObject::activate (sender=0x90a4ea8, m=0x631c8a0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#30 0x06133f97 in KIO::Connection::readyRead (this=0x90a4ea8) at ./connection.moc:86
#31 0x06135d5e in KIO::ConnectionPrivate::dequeue (this=0x90b3670) at ../../kio/kio/connection.cpp:82
#32 0x06135e8e in KIO::Connection::qt_metacall (this=0x90a4ea8, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0x92ec4f0) at ./connection.moc:73
#33 0x07e77f0b in QMetaCallEvent::placeMetaCall (this=0xbc26030, object=0x90a4ea8) at kernel/qobject.cpp:477
#34 0x07e795fe in QObject::event (this=0x90a4ea8, e=0xbc26030) at kernel/qobject.cpp:1111
#35 0x00d91f54 in QApplicationPrivate::notify_helper (this=0x86cc268, receiver=0x90a4ea8, e=0xbc26030) at kernel/qapplication.cpp:4056
#36 0x00d9967c in QApplication::notify (this=0xbfaea414, receiver=0x90a4ea8, e=0xbc26030) at kernel/qapplication.cpp:3603
#37 0x00639bfa in KApplication::notify (this=0xbfaea414, receiver=0x90a4ea8, event=0xbc26030) at ../../kdeui/kernel/kapplication.cpp:302
#38 0x07e696cb in QCoreApplication::notifyInternal (this=0xbfaea414, receiver=0x90a4ea8, event=0xbc26030) at kernel/qcoreapplication.cpp:610
#39 0x07e6a2b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x86ac820) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x86ac820) at kernel/qcoreapplication.cpp:1247
#41 0x07e6a47d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#42 0x07e943ff in QCoreApplication::sendPostedEvents (s=0x86db110) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#43 postEventSourceDispatch (s=0x86db110) at kernel/qeventdispatcher_glib.cpp:210
#44 0x01e25e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#45 0x01e29720 in ?? () from /lib/libglib-2.0.so.0
#46 0x01e29853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#47 0x07e9402c in QEventDispatcherGlib::processEvents (this=0x86ac9f8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#48 0x00e32be5 in QGuiEventDispatcherGlib::processEvents (this=0x86ac9f8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#49 0x07e67c79 in QEventLoop::processEvents (this=0xbfaea374, flags=) at kernel/qeventloop.cpp:149
#50 0x07e680ca in QEventLoop::exec (this=0xbfaea374, flags=...) at kernel/qeventloop.cpp:201
#51 0x07e6a53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0x00d91dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#53 0x0804b4e6 in main (argc=3, argv=0xbfaea634) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi