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 x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I was deleting about 4 emails from my imap google account and then, while those emails were still greyed out, I deleted another email and kontact crashed. 

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  QBasicAtomicInt::ref (this=0xf105b0) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
#6  QList (this=0xf105b0) at /usr/include/qt4/QtCore/qlist.h:111
#7  KMail::FolderJob::msgList (this=0xf105b0) at ../../kmail/folderjob.cpp:120
#8  0x00007f6ae9c15c23 in KMAcctImap::ignoreJobsForMessage (this=0xedb6a0, msg=0x1aff050) at ../../kmail/kmacctimap.cpp:215
#9  0x00007f6ae9d2f727 in KMMoveCommand::execute (this=0x1d7fb40) at ../../kmail/kmcommands.cpp:2095
#10 0x00007f6ae9d152ca in KMCommand::slotPostTransfer (this=0x1d7fb40, result=KMCommand::OK) at ../../kmail/kmcommands.cpp:274
#11 0x00007f6ae9d1f4d3 in KMCommand::qt_metacall (this=0x1d7fb40, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff79c33d80) at ./kmcommands.moc:87
#12 0x00007f6ae9d30810 in KMMoveCommand::qt_metacall (this=0x7fff79c33910, _c=15795632, _id=27, _a=0x151d730) at ./kmcommands.moc:1706
#13 0x00007f6aff717ddc in QMetaObject::activate (sender=0x1d7fb40, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x151d730) at kernel/qobject.cpp:3113
#14 0x00007f6ae9d1244e in KMCommand::messagesTransfered (this=0x7fff79c33910, _t1=KMCommand::OK) at ./kmcommands.moc:102
#15 0x00007f6ae9d2d648 in KMCommand::transferSelectedMsgs (this=0x1d7fb40) at ../../kmail/kmcommands.cpp:368
#16 0x00007f6ae9d2d86f in KMCommand::slotStart (this=0x1d7fb40) at ../../kmail/kmcommands.cpp:266
#17 0x00007f6ae9d1f4b6 in KMCommand::qt_metacall (this=0x1d7fb40, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff79c33fe0) at ./kmcommands.moc:86
#18 0x00007f6ae9d30810 in KMMoveCommand::qt_metacall (this=0x7fff79c33910, _c=15795632, _id=27, _a=0x151d730) at ./kmcommands.moc:1706
#19 0x00007f6aff717ddc in QMetaObject::activate (sender=0x1c9bd00, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x151d730) at kernel/qobject.cpp:3113
#20 0x00007f6aff71ce1f in QSingleShotTimer::timerEvent (this=0x1c9bd00) at kernel/qtimer.cpp:298
#21 0x00007f6aff711d83 in QObject::event (this=0x1c9bd00, e=0xf105b0) at kernel/qobject.cpp:1075
#22 0x00007f6b00022efc in QApplicationPrivate::notify_helper (this=0x824cb0, receiver=0x1c9bd00, e=0x7fff79c345f0) at kernel/qapplication.cpp:4056
#23 0x00007f6b0002a1ce in QApplication::notify (this=0x7fff79c34950, receiver=0x1c9bd00, e=0x7fff79c345f0) at kernel/qapplication.cpp:4021
#24 0x00007f6b00c59ab6 in KApplication::notify (this=0x7fff79c34950, receiver=0x1c9bd00, event=0x7fff79c345f0) at ../../kdeui/kernel/kapplication.cpp:302
#25 0x00007f6aff702c2c in QCoreApplication::notifyInternal (this=0x7fff79c34950, receiver=0x1c9bd00, event=0x7fff79c345f0) at kernel/qcoreapplication.cpp:610
#26 0x00007f6aff72d862 in QCoreApplication::sendEvent (this=0x81cd20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#27 QTimerInfoList::activateTimers (this=0x81cd20) at kernel/qeventdispatcher_unix.cpp:572
#28 0x00007f6aff72b25d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#29 0x00007f6af8f7cbbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#30 0x00007f6af8f80588 in ?? () from /lib/libglib-2.0.so.0
#31 0x00007f6af8f806b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#32 0x00007f6aff72b1a6 in QEventDispatcherGlib::processEvents (this=0x7f0cb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#33 0x00007f6b000b74be in QGuiEventDispatcherGlib::processEvents (this=0x7fff79c33910, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007f6aff701532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#35 0x00007f6aff701904 in QEventLoop::exec (this=0x7fff79c34890, flags=) at kernel/qeventloop.cpp:201
#36 0x00007f6aff703ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0x0000000000403f47 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

This bug may be a duplicate of or related to bug 213807

Reported using DrKonqi