Application that crashed: kmail
Version of the application: 1.12.2
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:
 

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#6  KMFolder::isOpened (this=0x9ade480) at ../../kmail/kmfolder.cpp:560
#7  0x00f4dba2 in KMCommand::slotPostTransfer (this=0xbfbe27b4, result=176886012) at ../../kmail/kmcommands.cpp:274
#8  0x00f5815f in KMCommand::qt_metacall (this=0x9ade480, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfbe2988) at ./kmcommands.moc:87
#9  0x00f6a5fa in KMMoveCommand::qt_metacall (this=0x9ade480, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbfbe2988) at ./kmcommands.moc:1706
#10 0x00774263 in QMetaObject::activate (sender=0x9ade480, from_signal_index=4, to_signal_index=4, argv=0xbfbe2988) at kernel/qobject.cpp:3113
#11 0x00774ec2 in QMetaObject::activate (sender=0x9ade480, m=0x1386634, local_signal_index=0, argv=0xbfbe2988) at kernel/qobject.cpp:3187
#12 0x00f49bd3 in KMCommand::messagesTransfered (this=0x9ade480, _t1=KMCommand::OK) at ./kmcommands.moc:102
#13 0x00f67156 in KMCommand::transferSelectedMsgs (this=0x9ade480) at ../../kmail/kmcommands.cpp:368
#14 0x00f673a2 in KMCommand::slotStart (this=0x9ade480) at ../../kmail/kmcommands.cpp:266
#15 0x00f5813b in KMCommand::qt_metacall (this=0x9ade480, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfbe2b8c) at ./kmcommands.moc:86
#16 0x00f6a5fa in KMMoveCommand::qt_metacall (this=0x9ade480, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfbe2b8c) at ./kmcommands.moc:1706
#17 0x00774263 in QMetaObject::activate (sender=0x91abd10, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#18 0x00774ec2 in QMetaObject::activate (sender=0x91abd10, m=0x84e908, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#19 0x00779387 in QSingleShotTimer::timeout (this=0x91abd10) at .moc/release-shared/qtimer.moc:76
#20 0x0077949c in QSingleShotTimer::timerEvent (this=0x91abd10) at kernel/qtimer.cpp:298
#21 0x0076e3bf in QObject::event (this=0x91abd10, e=0xbfbe3020) at kernel/qobject.cpp:1075
#22 0x031bbf54 in QApplicationPrivate::notify_helper (this=0x8eb3cb0, receiver=0x91abd10, e=0xbfbe3020) at kernel/qapplication.cpp:4056
#23 0x031c367c in QApplication::notify (this=0xbfbe3420, receiver=0x91abd10, e=0xbfbe3020) at kernel/qapplication.cpp:3603
#24 0x00a2bbfa in KApplication::notify (this=0xbfbe3420, receiver=0x91abd10, event=0xbfbe3020) at ../../kdeui/kernel/kapplication.cpp:302
#25 0x0075e6cb in QCoreApplication::notifyInternal (this=0xbfbe3420, receiver=0x91abd10, event=0xbfbe3020) at kernel/qcoreapplication.cpp:610
#26 0x0078b7ce in QCoreApplication::sendEvent (this=0x8eac6b4) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#27 QTimerInfoList::activateTimers (this=0x8eac6b4) at kernel/qeventdispatcher_unix.cpp:572
#28 0x007890e0 in timerSourceDispatch (source=0x8eac680) at kernel/qeventdispatcher_glib.cpp:165
#29 0x022d4e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#30 0x022d8720 in ?? () from /lib/libglib-2.0.so.0
#31 0x022d8853 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#32 0x0078902c in QEventDispatcherGlib::processEvents (this=0x8e85180, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#33 0x0325cbe5 in QGuiEventDispatcherGlib::processEvents (this=0x8e85180, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x0075cc79 in QEventLoop::processEvents (this=0xbfbe32e4, flags=) at kernel/qeventloop.cpp:149
#35 0x0075d0ca in QEventLoop::exec (this=0xbfbe32e4, flags=...) at kernel/qeventloop.cpp:201
#36 0x0075f53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0x031bbdd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#38 0x0804a702 in main (argc=3, argv=0xbfbe35d4) at ../../kmail/main.cpp:146

Reported using DrKonqi