Application that crashed: kmail
Version of the application: 1.12.4
KDE Version: 4.3.4 (KDE 4.3.4) "release 2"
Qt Version: 4.6.0
Operating System: Linux 2.6.25.20-0.5-pae i686

What I was doing when the application crashed:
I'm using KMail with IMAP. KMail crashed after this operations:
1. Created a new IMAP folder "Bugs".
2. Moved a lot of messages into "Bugs".
3. Displayed some messages.
4. Deleted two messaged from "Bugs".

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#6  0x0030003a in ?? ()
#7  0xb7310fab in KMReaderWin::displayMessage (this=0x8346a18) at /usr/src/debug/kdepim-4.3.4/kmail/kmreaderwin.cpp:1608
#8  0xb73111c0 in KMReaderWin::updateReaderWin (this=0x832f8b8) at /usr/src/debug/kdepim-4.3.4/kmail/kmreaderwin.cpp:1548
#9  0xb731cfc9 in KMReaderWin::setMsg (this=0x832f8b8, aMsg=0x89c9700, force=true) at /usr/src/debug/kdepim-4.3.4/kmail/kmreaderwin.cpp:1350
#10 0xb731df17 in KMReaderWin::slotMessageArrived (this=0x832f8b8, msg=0x89c9700) at /usr/src/debug/kdepim-4.3.4/kmail/kmreaderwin.cpp:938
#11 0xb731e242 in KMReaderWin::qt_metacall (this=0x832f8b8, _c=QMetaObject::InvokeMetaMethod, _id=34, _a=0xbff24c8c) at /usr/src/debug/kdepim-4.3.4/build/kmail/kmreaderwin.moc:196
#12 0xb682a9b5 in QMetaObject::metacall (object=0x808f308, cl=QMetaObject::InvokeMetaMethod, idx=61, argv=0xbff24c8c) at kernel/qmetaobject.cpp:237
#13 0xb683a0eb in QMetaObject::activate (sender=0x88a4170, m=0xb7917490, local_signal_index=0, argv=0xbff24c8c) at kernel/qobject.cpp:3294
#14 0xb753c8e3 in KMail::FolderJob::messageRetrieved (this=0x88a4170, _t1=0x89c9700) at /usr/src/debug/kdepim-4.3.4/build/kmail/folderjob.moc:99
#15 0xb754940f in KMail::ImapJob::slotGetMessageResult (this=0x88a4170, job=0x8999078) at /usr/src/debug/kdepim-4.3.4/kmail/imapjob.cpp:460
#16 0xb754dc34 in KMail::ImapJob::qt_metacall (this=0x88a4170, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbff24dfc) at /usr/src/debug/kdepim-4.3.4/build/kmail/imapjob.moc:82
#17 0xb682a9b5 in QMetaObject::metacall (object=0x808f308, cl=QMetaObject::InvokeMetaMethod, idx=12, argv=0xbff24dfc) at kernel/qmetaobject.cpp:237
#18 0xb683a0eb in QMetaObject::activate (sender=0x8999078, m=0xb7b57dc8, local_signal_index=3, argv=0xbff24dfc) at kernel/qobject.cpp:3294
#19 0xb79f3c33 in KJob::result (this=0x8999078, _t1=0x8999078) at /usr/src/debug/kdelibs-4.3.4/build/kdecore/kjob.moc:188
#20 0xb79f40d9 in KJob::emitResult (this=0x8999078) at /usr/src/debug/kdelibs-4.3.4/kdecore/jobs/kjob.cpp:304
#21 0xb6ad21a5 in KIO::SimpleJob::slotFinished (this=0x8999078) at /usr/src/debug/kdelibs-4.3.4/kio/kio/job.cpp:477
#22 0xb6ad2ae3 in KIO::TransferJob::slotFinished (this=0x8999078) at /usr/src/debug/kdelibs-4.3.4/kio/kio/job.cpp:948
#23 0xb6acf05b in KIO::TransferJob::qt_metacall (this=0x8999078, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbff25058) at /usr/src/debug/kdelibs-4.3.4/build/kio/jobclasses.moc:343
#24 0xb682a9b5 in QMetaObject::metacall (object=0x808f308, cl=QMetaObject::InvokeMetaMethod, idx=47, argv=0xbff25058) at kernel/qmetaobject.cpp:237
#25 0xb683a0eb in QMetaObject::activate (sender=0x85da498, m=0xb6c7cf24, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3294
#26 0xb6b99247 in KIO::SlaveInterface::finished (this=0x85da498) at /usr/src/debug/kdelibs-4.3.4/build/kio/slaveinterface.moc:165
#27 0xb6b9cf97 in KIO::SlaveInterface::dispatch (this=0x85da498, _cmd=104, rawdata=@0xbff25204) at /usr/src/debug/kdelibs-4.3.4/kio/kio/slaveinterface.cpp:175
#28 0xb6b99727 in KIO::SlaveInterface::dispatch (this=0x85da498) at /usr/src/debug/kdelibs-4.3.4/kio/kio/slaveinterface.cpp:91
#29 0xb6b8b48d in KIO::Slave::gotInput (this=0x85da498) at /usr/src/debug/kdelibs-4.3.4/kio/kio/slave.cpp:322
#30 0xb6b8d923 in KIO::Slave::qt_metacall (this=0x85da498, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbff25338) at /usr/src/debug/kdelibs-4.3.4/build/kio/slave.moc:76
#31 0xb682a9b5 in QMetaObject::metacall (object=0x808f308, cl=QMetaObject::InvokeMetaMethod, idx=30, argv=0xbff25338) at kernel/qmetaobject.cpp:237
#32 0xb683a0eb in QMetaObject::activate (sender=0x85d8a98, m=0xb6c79860, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3294
#33 0xb6a95ba7 in KIO::Connection::readyRead (this=0x85d8a98) at /usr/src/debug/kdelibs-4.3.4/build/kio/connection.moc:86
#34 0xb6a97513 in KIO::ConnectionPrivate::dequeue (this=0x85d9d80) at /usr/src/debug/kdelibs-4.3.4/kio/kio/connection.cpp:82
#35 0xb6a978f6 in KIO::Connection::qt_metacall (this=0x85d8a98, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x905d9d8) at /usr/src/debug/kdelibs-4.3.4/build/kio/connection.moc:73
#36 0xb682a9b5 in QMetaObject::metacall (object=0x808f308, cl=QMetaObject::InvokeMetaMethod, idx=5, argv=0x905d9d8) at kernel/qmetaobject.cpp:237
#37 0xb68351e6 in QMetaCallEvent::placeMetaCall (this=0x8654960, object=0x85d8a98) at kernel/qobject.cpp:574
#38 0xb68366e3 in QObject::event (this=0x85d8a98, e=0x8654960) at kernel/qobject.cpp:1260
#39 0xb5bfa0bc in QApplicationPrivate::notify_helper (this=0x807f000, receiver=0x85d8a98, e=0x8654960) at kernel/qapplication.cpp:4242
#40 0xb5c00a85 in QApplication::notify (this=0xbff25c18, receiver=0x85d8a98, e=0x8654960) at kernel/qapplication.cpp:3661
#41 0xb7d2064d in KApplication::notify (this=0xbff25c18, receiver=0x85d8a98, event=0x8654960) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:302
#42 0xb68254fb in QCoreApplication::notifyInternal (this=0xbff25c18, receiver=0x85d8a98, event=0x8654960) at kernel/qcoreapplication.cpp:704
#43 0xb68264bf in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8053fa0) at kernel/qcoreapplication.h:215
#44 0xb682666d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#45 0xb685269f in postEventSourceDispatch (s=0x8083110) at kernel/qcoreapplication.h:220
#46 0xb3dae2f9 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#47 0xb3db187b in ?? () from /usr/lib/libglib-2.0.so.0
#48 0xb3db19f8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#49 0xb68521b1 in QEventDispatcherGlib::processEvents (this=0x8053b28, flags={i = -1074636168}) at kernel/qeventdispatcher_glib.cpp:407
#50 0xb5cb6bf5 in QGuiEventDispatcherGlib::processEvents (this=0x8053b28, flags={i = -1074636120}) at kernel/qguieventdispatcher_glib.cpp:202
#51 0xb6823b2a in QEventLoop::processEvents (this=0xbff25b20, flags={i = -1074636056}) at kernel/qeventloop.cpp:149
#52 0xb6823f72 in QEventLoop::exec (this=0xbff25b20, flags={i = -1074635992}) at kernel/qeventloop.cpp:201
#53 0xb6826739 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#54 0xb5bfa167 in QApplication::exec () at kernel/qapplication.cpp:3570
#55 0x0804a800 in main (argc=134832608, argv=0x808f4b0) at /usr/src/debug/kdepim-4.3.4/kmail/main.cpp:146

Reported using DrKonqi