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 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I'd just saved a mail from an open mail window (not the main Kontact window), and clicked X in the title bar of the open mail. The mail saved OK.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  KMail::MessageListView::StorageModel::initializeMessageItem (this=0x8f655f8, mi=0x9bebbe8, row=11, bUseReceiver=false) at ../../kmail/messagelistview/storagemodel.cpp:402
#7  0xb4aa8d41 in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJobPass1Fill (this=0x86b98a8, job=0x99bd630, tStart=...) at ../../kmail/messagelistview/core/model.cpp:2714
#8  0xb4aaa54b in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJob (this=0x86b98a8, job=0x99bd630, tStart=...) at ../../kmail/messagelistview/core/model.cpp:3356
#9  0xb4aaab72 in KMail::MessageListView::Core::Model::viewItemJobStepInternal (this=0x86b98a8) at ../../kmail/messagelistview/core/model.cpp:3728
#10 0xb4aab88e in KMail::MessageListView::Core::Model::viewItemJobStep (this=0x86b98a8) at ../../kmail/messagelistview/core/model.cpp:3916
#11 0xb46200e6 in KMail::MessageListView::Core::Model::qt_metacall (this=0x86b98a8, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0xbf8de3dc) at moc_model.cpp:76
#12 0x06a21263 in QMetaObject::activate (sender=0x86b98c8, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#13 0x06a21ec2 in QMetaObject::activate (sender=0x86b98c8, m=0x6afc904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#14 0x06a5b667 in QTimer::timeout (this=0x86b98c8) at .moc/release-shared/moc_qtimer.cpp:128
#15 0x06a269ae in QTimer::timerEvent (this=0x86b98c8, e=0xbf8de870) at kernel/qtimer.cpp:261
#16 0x06a1b3bf in QObject::event (this=0x86b98c8, e=0xbf8de870) at kernel/qobject.cpp:1075
#17 0x00e5cf54 in QApplicationPrivate::notify_helper (this=0x822e158, receiver=0x86b98c8, e=0xbf8de870) at kernel/qapplication.cpp:4056
#18 0x00e6467c in QApplication::notify (this=0xbf8debd4, receiver=0x86b98c8, e=0xbf8de870) at kernel/qapplication.cpp:3603
#19 0x0094fbfa in KApplication::notify (this=0xbf8debd4, receiver=0x86b98c8, event=0xbf8de870) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x06a0b6cb in QCoreApplication::notifyInternal (this=0xbf8debd4, receiver=0x86b98c8, event=0xbf8de870) at kernel/qcoreapplication.cpp:610
#21 0x06a387ce in QCoreApplication::sendEvent (this=0x8227034) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#22 QTimerInfoList::activateTimers (this=0x8227034) at kernel/qeventdispatcher_unix.cpp:572
#23 0x06a360e0 in timerSourceDispatch (source=0x8227000) at kernel/qeventdispatcher_glib.cpp:165
#24 0x0469fe78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x046a3720 in ?? () from /lib/libglib-2.0.so.0
#26 0x046a3853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x06a3602c in QEventDispatcherGlib::processEvents (this=0x82049f8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#28 0x00efdbe5 in QGuiEventDispatcherGlib::processEvents (this=0x82049f8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x06a09c79 in QEventLoop::processEvents (this=0xbf8deb34, flags=) at kernel/qeventloop.cpp:149
#30 0x06a0a0ca in QEventLoop::exec (this=0xbf8deb34, flags=...) at kernel/qeventloop.cpp:201
#31 0x06a0c53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0x00e5cdd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#33 0x0804b4e6 in main (argc=1, argv=0xbf8dedf4) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi