Application that crashed: kmail
Version of the application: 1.12.4
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I moved some files out of the Inbox folder into another one. Everything went fine, but when I selected a message from the Inbox folder, kmail crashed.

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007fccc972a47f in KMReaderWin::parseMsg (this=0x1b883a0, aMsg=0x2d4e490) at ../../kmail/kmreaderwin.cpp:1691
#6  0x00007fccc971811a in KMReaderWin::displayMessage (this=0x1b883a0) at ../../kmail/kmreaderwin.cpp:1608
#7  0x00007fccc97182f4 in KMReaderWin::updateReaderWin (this=0x1b883a0) at ../../kmail/kmreaderwin.cpp:1548
#8  0x00007fccc972593d in KMReaderWin::update (this=0x2d4e490, observable=0x7fff836194d0) at ../../kmail/kmreaderwin.cpp:950
#9  0x00007fccc994b849 in KMail::ISubject::notify (this=0x2d4e560) at ../../kmail/isubject.cpp:33
#10 0x00007fccc963503c in KMMessage::updateBodyPart (this=0x2d4e490, partSpecifier=) at ../../kmail/kmmessage.cpp:3237
#11 0x00007fccc991fafa in KMail::ImapJob::slotGetMessageResult (this=0x2680cf0, job=<value optimized out>) at ../../kmail/imapjob.cpp:435
#12 0x00007fccc9923f7b in KMail::ImapJob::qt_metacall (this=0x2680cf0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8361a100) at ./imapjob.moc:82
#13 0x00007fccc835eddc in QMetaObject::activate (sender=0x30aa110, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#14 0x00007fccc9fe9e62 in KJob::result (this=0x2d4e490, _t1=0x30aa110) at ./kjob.moc:188
#15 0x00007fccc9fea1df in KJob::emitResult (this=0x30aa110) at ../../kdecore/jobs/kjob.cpp:304
#16 0x00007fccc2107d93 in KIO::SimpleJob::slotFinished (this=0x30aa110) at ../../kio/kio/job.cpp:477
#17 0x00007fccc2108253 in KIO::TransferJob::slotFinished (this=0x30aa110) at ../../kio/kio/job.cpp:948
#18 0x00007fccc2106b61 in KIO::TransferJob::qt_metacall (this=0x30aa110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8361a520) at ./jobclasses.moc:343
#19 0x00007fccc835eddc in QMetaObject::activate (sender=0x2e5c4f0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#20 0x00007fccc21c8a91 in KIO::SlaveInterface::dispatch (this=0x2e5c4f0, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:175
#21 0x00007fccc21c5343 in KIO::SlaveInterface::dispatch (this=0x2e5c4f0) at ../../kio/kio/slaveinterface.cpp:91
#22 0x00007fccc21b815d in KIO::Slave::gotInput (this=0x2e5c4f0) at ../../kio/kio/slave.cpp:322
#23 0x00007fccc21ba27c in KIO::Slave::qt_metacall (this=0x2e5c4f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8361a8e0) at ./slave.moc:76
#24 0x00007fccc835eddc in QMetaObject::activate (sender=0x1b5f6f0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#25 0x00007fccc20d4ed7 in KIO::ConnectionPrivate::dequeue (this=0x912770) at ../../kio/kio/connection.cpp:82
#26 0x00007fccc20d4ffd in KIO::Connection::qt_metacall (this=0x1b5f6f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x264f4b0) at ./connection.moc:73
#27 0x00007fccc83590f9 in QObject::event (this=0x1b5f6f0, e=0x27e8270) at kernel/qobject.cpp:1111
#28 0x00007fccc87dcefc in QApplicationPrivate::notify_helper (this=0x8aa010, receiver=0x1b5f6f0, e=0x27e8270) at kernel/qapplication.cpp:4056
#29 0x00007fccc87e41ce in QApplication::notify (this=0x7fff8361b3b0, receiver=0x1b5f6f0, e=0x27e8270) at kernel/qapplication.cpp:4021
#30 0x00007fccca5a5e56 in KApplication::notify (this=0x7fff8361b3b0, receiver=0x1b5f6f0, event=0x27e8270) at ../../kdeui/kernel/kapplication.cpp:302
#31 0x00007fccc8349c2c in QCoreApplication::notifyInternal (this=0x7fff8361b3b0, receiver=0x1b5f6f0, event=0x27e8270) at kernel/qcoreapplication.cpp:610
#32 0x00007fccc834a80a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x613d00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#33 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x613d00) at kernel/qcoreapplication.cpp:1247
#34 0x00007fccc8372533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#35 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#36 0x00007fccbf5e2bce in g_main_dispatch (context=0x8abd20) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#37 IA__g_main_context_dispatch (context=0x8abd20) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#38 0x00007fccbf5e6598 in g_main_context_iterate (context=0x8abd20, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#39 0x00007fccbf5e66c0 in IA__g_main_context_iteration (context=0x8abd20, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#40 0x00007fccc83721a6 in QEventDispatcherGlib::processEvents (this=0x613930, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#41 0x00007fccc88714be in QGuiEventDispatcherGlib::processEvents (this=0x2d4e490, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#42 0x00007fccc8348532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#43 0x00007fccc8348904 in QEventLoop::exec (this=0x7fff8361b1e0, flags=) at kernel/qeventloop.cpp:201
#44 0x00007fccc834aab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#45 0x0000000000402fe9 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../kmail/main.cpp:146

Reported using DrKonqi