Application that crashed: kontact
Version of the application: 4.3.4
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-3-686 i686
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
Trying to open an attached file, format '.mht' which seems to be HTML of sorts.  I right-clicked the file and selected 'Open with...'  Kontact crashed before I had a chance to select my app.

Thanks for KDE and Kontact!

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  DwString::c_str (this=<value optimized out>, msg=<value optimized out>, partSpecifier=<value optimized out>) at ../../mimelib/mimelib/string.h:618
#7  DwMessageComponent::partId (this=<value optimized out>, msg=<value optimized out>, partSpecifier=<value optimized out>) at ../../mimelib/mimelib/msgcmp.h:259
#8  KMLoadPartsCommand::slotPartRetrieved (this=<value optimized out>, msg=<value optimized out>, partSpecifier=<value optimized out>) at ../../kmail/kmcommands.cpp:2761
#9  0x4c26afbb in KMLoadPartsCommand::qt_metacall (this=<value optimized out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>) at ./kmcommands.moc:1858
#10 0x452eae0a in QMetaObject::metacall (object=<value optimized out>, cl=<value optimized out>, idx=<value optimized out>, argv=<value optimized out>) at kernel/qmetaobject.cpp:237
#11 0x452f93d5 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3293
#12 0x4c2c0789 in KMail::FolderJob::messageUpdated (this=) at ./folderjob.moc:106
#13 0x4c2cd2de in KMail::ImapJob::slotGetMessageResult (this=<value optimized out>, job=<value optimized out>) at ../../kmail/imapjob.cpp:476
#14 0x4c2d19ff in KMail::ImapJob::qt_metacall (this=<value optimized out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>) at ./imapjob.moc:82
#15 0x452eae0a in QMetaObject::metacall (object=<value optimized out>, cl=<value optimized out>, idx=<value optimized out>, argv=<value optimized out>) at kernel/qmetaobject.cpp:237
#16 0x452f93d5 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3293
#17 0x45b309e3 in KJob::result (this=) at ./kjob.moc:188
#18 0x45b30e69 in KJob::emitResult (this=<value optimized out>) at ../../kdecore/jobs/kjob.cpp:304
#19 0x471ad4a0 in KIO::SimpleJob::slotFinished (this=<value optimized out>) at ../../kio/kio/job.cpp:477
#20 0x471ad9ba in KIO::TransferJob::slotFinished (this=<value optimized out>) at ../../kio/kio/job.cpp:948
#21 0x471ab6e3 in KIO::TransferJob::qt_metacall (this=<value optimized out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>) at ./jobclasses.moc:343
#22 0x452eae0a in QMetaObject::metacall (object=<value optimized out>, cl=<value optimized out>, idx=<value optimized out>, argv=<value optimized out>) at kernel/qmetaobject.cpp:237
#23 0x452f93d5 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3293
#24 0x47278017 in KIO::SlaveInterface::finished (this=) at ./slaveinterface.moc:165
#25 0x4727bf0d in KIO::SlaveInterface::dispatch (this=<value optimized out>, _cmd=<value optimized out>, rawdata=<value optimized out>) at ../../kio/kio/slaveinterface.cpp:175
#26 0x472784d3 in KIO::SlaveInterface::dispatch (this=<value optimized out>) at ../../kio/kio/slaveinterface.cpp:91
#27 0x4726a6ca in KIO::Slave::gotInput (this=<value optimized out>) at ../../kio/kio/slave.cpp:322
#28 0x4726cac3 in KIO::Slave::qt_metacall (this=<value optimized out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>) at ./slave.moc:76
#29 0x452eae0a in QMetaObject::metacall (object=<value optimized out>, cl=<value optimized out>, idx=<value optimized out>, argv=<value optimized out>) at kernel/qmetaobject.cpp:237
#30 0x452f93d5 in QMetaObject::activate (sender=<value optimized out>, m=<value optimized out>, local_signal_index=<value optimized out>, argv=<value optimized out>) at kernel/qobject.cpp:3293
#31 0x47173fc7 in KIO::Connection::readyRead (this=) at ./connection.moc:86
#32 0x47175d8e in KIO::ConnectionPrivate::dequeue (this=<value optimized out>) at ../../kio/kio/connection.cpp:82
#33 0x47175ebe in KIO::Connection::qt_metacall (this=<value optimized out>, _c=<value optimized out>, _id=<value optimized out>, _a=<value optimized out>) at ./connection.moc:73
#34 0x452eae0a in QMetaObject::metacall (object=<value optimized out>, cl=<value optimized out>, idx=<value optimized out>, argv=<value optimized out>) at kernel/qmetaobject.cpp:237
#35 0x452f5336 in QMetaCallEvent::placeMetaCall (this=) at kernel/qobject.cpp:561
#36 0x452f63fe in QObject::event (this=<value optimized out>, e=<value optimized out>) at kernel/qobject.cpp:1248
#37 0x463f3bec in QApplicationPrivate::notify_helper (this=<value optimized out>, receiver=<value optimized out>, e=<value optimized out>) at kernel/qapplication.cpp:4300
#38 0x463fa75e in QApplication::notify (this=<value optimized out>, receiver=<value optimized out>, e=<value optimized out>) at kernel/qapplication.cpp:3704
#39 0x46f1ee2a in KApplication::notify (this=<value optimized out>, receiver=<value optimized out>, event=<value optimized out>) at ../../kdeui/kernel/kapplication.cpp:302
#40 0x452e5c0b in QCoreApplication::notifyInternal (this=<value optimized out>, receiver=<value optimized out>, event=<value optimized out>) at kernel/qcoreapplication.cpp:704
#41 0x452e85e3 in QCoreApplication::sendEvent (receiver=<value optimized out>, event_type=<value optimized out>, data=<value optimized out>)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=<value optimized out>, event_type=<value optimized out>, data=<value optimized out>) at kernel/qcoreapplication.cpp:1345
#43 0x452e874d in QCoreApplication::sendPostedEvents (receiver=) at kernel/qcoreapplication.cpp:1238
#44 0x45311b1f in QCoreApplication::sendPostedEvents (s=) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#45 postEventSourceDispatch (s=) at kernel/qeventdispatcher_glib.cpp:276
#46 0x4153b2e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#47 0x4153f000 in ?? () from /lib/libglib-2.0.so.0
#48 0x4153f198 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#49 0x45311615 in QEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#50 0x464b2255 in QGuiEventDispatcherGlib::processEvents (this=) at kernel/qguieventdispatcher_glib.cpp:204
#51 0x452e4229 in QEventLoop::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventloop.cpp:149
#52 0x452e467a in QEventLoop::exec (this=<value optimized out>, flags=<value optimized out>) at kernel/qeventloop.cpp:201
#53 0x452e880f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#54 0x463f3c87 in QApplication::exec () at kernel/qapplication.cpp:3579
#55 0x0804b4c6 in main (argc=1, argv=0xbfaf48e4) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi