Application: kmail (1.13.7)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.2
Operating System: Linux 3.2.0-4-amd64 x86_64
Distribution: Debian GNU/Linux 7.0 (wheezy)

-- Information about the crash:
KMail Crash then reading email's using IMAP

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  ref (this=0x0) at /usr/include/qt4/QtCore/qatomic_x86_64.h:121
#7  QList (l=..., this=0x7fff676e21e0) at /usr/include/qt4/QtCore/qlist.h:122
#8  KMail::FolderJob::msgList (this=0x3443620) at ../../kmail/folderjob.cpp:120
#9  0x00007f5b9dd010cb in KMAcctImap::ignoreJobsForMessage (this=0x2485320, msg=0x380f600) at ../../kmail/kmacctimap.cpp:217
#10 0x00007f5b9de04477 in KMMoveCommand::execute (this=0x413acd0) at ../../kmail/kmcommands.cpp:2208
#11 0x00007f5b9ddf3dda in KMCommand::slotPostTransfer (this=0x413acd0, result=KMCommand::OK) at ../../kmail/kmcommands.cpp:295
#12 0x00007f5b9cabe54f in QMetaObject::activate (sender=0x413acd0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff676e2510) at kernel/qobject.cpp:3547
#13 0x00007f5b9dded9ee in KMCommand::messagesTransfered (this=this@entry=0x413acd0, _t1=_t1@entry=KMCommand::OK) at ./kmcommands.moc:122
#14 0x00007f5b9ddf4ba4 in KMCommand::transferSelectedMsgs (this=this@entry=0x413acd0) at ../../kmail/kmcommands.cpp:393
#15 0x00007f5b9ddf7bb7 in KMCommand::slotStart (this=0x413acd0) at ../../kmail/kmcommands.cpp:287
#16 0x00007f5b9cabda2e in QObject::event (this=0x413acd0, e=<optimized out>) at kernel/qobject.cpp:1195
#17 0x00007f5b9cfdd70c in QApplicationPrivate::notify_helper (this=this@entry=0x2143710, receiver=receiver@entry=0x413acd0, e=e@entry=0x3f0c210) at kernel/qapplication.cpp:4556
#18 0x00007f5b9cfe1b8a in QApplication::notify (this=0x7fff676e3280, receiver=0x413acd0, e=0x3f0c210) at kernel/qapplication.cpp:4417
#19 0x00007f5b9ec3d886 in KApplication::notify (this=0x7fff676e3280, receiver=0x413acd0, event=0x3f0c210) at ../../kdeui/kernel/kapplication.cpp:311
#20 0x00007f5b9caa8b5e in QCoreApplication::notifyInternal (this=0x7fff676e3280, receiver=receiver@entry=0x413acd0, event=event@entry=0x3f0c210) at kernel/qcoreapplication.cpp:915
#21 0x00007f5b9caac9e1 in sendEvent (event=0x3f0c210, receiver=0x413acd0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x20c4220) at kernel/qcoreapplication.cpp:1539
#23 0x00007f5b9cad70e3 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#24 postEventSourceDispatch (s=0x216a220) at kernel/qeventdispatcher_glib.cpp:279
#25 0x00007f5b93e68355 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f5b93e68688 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f5b93e68744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f5b9cad7276 in QEventDispatcherGlib::processEvents (this=0x20c5b00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#29 0x00007f5b9d07e83e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x00007f5b9caa78af in QEventLoop::processEvents (this=this@entry=0x7fff676e2f20, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007f5b9caa7b38 in QEventLoop::exec (this=0x7fff676e2f20, flags=...) at kernel/qeventloop.cpp:204
#32 0x00007f5b9caaccf8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#33 0x0000000000402fe6 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:158

Reported using DrKonqi