Application that crashed: kontact
Version of the application: 4.3.3
KDE Version: 4.3.3 (KDE 4.3.3) "release 1"
Qt Version: 4.5.3
Operating System: Linux 2.6.27.29-0.1-pae i686

What I was doing when the application crashed:
when selecting and marking some  imap folders read kmail crashed. It was only after marking a few folders read that the crash appeared.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xb6fa88e9 in KIO::Slave::slaveProtocol() () from /usr/lib/libkio.so.5
#7  0xb6fa3449 in ?? () from /usr/lib/libkio.so.5
#8  0xb6fa3806 in KIO::Scheduler::assignJobToSlave(KIO::Slave*, KIO::SimpleJob*) () from /usr/lib/libkio.so.5
#9  0xb10413c7 in KMail::SearchJob::searchSingleMessage (this=0x98115c0) at /usr/src/debug/kdepim-4.3.3/kmail/searchjob.cpp:394
#10 0xb0fa1214 in KMail::FolderJob::start (this=0x0) at /usr/src/debug/kdepim-4.3.3/kmail/folderjob.cpp:106
#11 0xb0e416e6 in KMFolderImap::search (this=0x86dd180, pattern=0x84188a0, serNum=644019) at /usr/src/debug/kdepim-4.3.3/kmail/kmfolderimap.cpp:2435
#12 0xb0f9dcc7 in KMFolderSearch::propagateHeaderChanged (this=0x86b3070, aFolder=0x86d3ce8, idx=1049) at /usr/src/debug/kdepim-4.3.3/kmail/kmfoldersearch.cpp:1167
#13 0xb0f9f57d in KMFolderSearch::qt_metacall (this=0x86b3070, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfea92d8) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmfoldersearch.moc:181
#14 0xb664dee8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#15 0xb664eb72 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#16 0xb0dbd1b9 in KMFolderMgr::msgHeaderChanged (this=0x84188b0, _t1=0x86d3ce8, _t2=1049) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmfoldermgr.moc:163
#17 0xb0dc00dd in KMFolderMgr::qt_metacall (this=0x84188b0, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfea93d8) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmfoldermgr.moc:98
#18 0xb664dee8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#19 0xb664eb72 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#20 0xb0d60959 in KMFolder::msgHeaderChanged (this=0x86d3ce8, _t1=0x86d3ce8, _t2=1049) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmfolder.moc:242
#21 0xb0d6114d in KMFolder::qt_metacall (this=0x86d3ce8, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbfea94d8) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmfolder.moc:125
#22 0xb664dee8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#23 0xb664eb72 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#24 0xb0d924e9 in FolderStorage::msgHeaderChanged (this=0x86dd180, _t1=0x86d3ce8, _t2=1049) at /usr/src/debug/kdepim-4.3.3/build/kmail/folderstorage.moc:274
#25 0xb0e03e70 in KMMsgBase::setStatus (this=0xbc57008, aStatus=@0xbbe30b0, idx=1049) at /usr/src/debug/kdepim-4.3.3/kmail/kmmsgbase.cpp:209
#26 0xb0c719a6 in KMMessage::setStatus (this=0xbc57008, aStatus=@0xbbe30b0, idx=1049) at /usr/src/debug/kdepim-4.3.3/kmail/kmmessage.cpp:3058
#27 0xb0d920e4 in FolderStorage::setStatus (this=0x86dd180, idx=1049, status=@0xbbe30b0, toggle=false) at /usr/src/debug/kdepim-4.3.3/kmail/folderstorage.cpp:1088
#28 0xb0d947aa in FolderStorage::setStatus (this=0x86dd180, ids=@0x92c9ebc, status=@0xbbe30b0, toggle=false) at /usr/src/debug/kdepim-4.3.3/kmail/folderstorage.cpp:1098
#29 0xb0e4c91b in KMFolderImap::setStatus (this=0x86dd180, _ids=@0x92c9ebc, status=@0xbbe30b0, toggle=<value optimized out>) at /usr/src/debug/kdepim-4.3.3/kmail/kmfolderimap.cpp:1932
#30 0xb0d6063d in KMFolder::setStatus (this=0x86d3ce8, ids=@0x92c9ebc, status=@0xbbe30b0, toggle=<value optimized out>) at /usr/src/debug/kdepim-4.3.3/kmail/kmfolder.cpp:887
#31 0xb0f4710a in KMSetStatusCommand::execute (this=0xbbe3088) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:1678
#32 0xb0f409a2 in KMCommand::slotPostTransfer (this=0xbbe3088, result=KMCommand::OK) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:274
#33 0xb0f4adc4 in KMCommand::qt_metacall (this=0xbbe3088, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbfea99bc) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmcommands.moc:87
#34 0xb0f4b1b2 in KMSetStatusCommand::qt_metacall (this=0xbbe3088, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfea99bc) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmcommands.moc:1360
#35 0xb664dee8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#36 0xb664eb72 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#37 0xb0f3c8b3 in KMCommand::messagesTransfered (this=0xbbe3088, _t1=KMCommand::OK) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmcommands.moc:102
#38 0xb0f5a45c in KMCommand::transferSelectedMsgs (this=0xbbe3088) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:368
#39 0xb0f5a6b3 in KMCommand::slotStart (this=0xbbe3088) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:266
#40 0xb0f4add3 in KMCommand::qt_metacall (this=0xbbe3088, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbfea9b88) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmcommands.moc:86
#41 0xb0f4b1b2 in KMSetStatusCommand::qt_metacall (this=0xbbe3088, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfea9b88) at /usr/src/debug/kdepim-4.3.3/build/kmail/kmcommands.moc:1360
#42 0xb664dee8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#43 0xb664eb72 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#44 0xb6653d17 in ?? () from /usr/lib/libQtCore.so.4
#45 0xb6653e3c in ?? () from /usr/lib/libQtCore.so.4
#46 0xb6648e8f in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#47 0xb5b1076c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#48 0xb5b18a5e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#49 0xb6c2682d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#50 0xb66388fb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#51 0xb6668066 in ?? () from /usr/lib/libQtCore.so.4
#52 0xb6664347 in ?? () from /usr/lib/libQtCore.so.4
#53 0xb4d59e28 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#54 0xb4d5d453 in ?? () from /usr/lib/libglib-2.0.so.0
#55 0xb4d5d5d8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#56 0xb6664071 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#57 0xb5bb0cc5 in ?? () from /usr/lib/libQtGui.so.4
#58 0xb6636f1a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#59 0xb6637362 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#60 0xb6639809 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#61 0xb5b105e7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#62 0x0804c04f in main (argc=1, argv=0xbfeaa604) at /usr/src/debug/kdepim-4.3.3/kontact/src/main.cpp:218

Reported using DrKonqi