Application: kmail (1.13.7)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.2
Operating System: Linux 3.2.0-3-amd64 x86_64
Distribution: Debian GNU/Linux testing (wheezy)

-- Information about the crash:
- What I was doing when the application crashed:

Tried to find an e-mail, and used search function. When asked if I want to download messages to perform search, I agreed. After some time of downloading (a minute or two) Kmail crashed with SEGFAULT.
Now, each time I start Kmail and try to open this IMAP account (there are two) it continues search/download and immediately crashes.

The crash can be reproduced every 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  0x00007f85f55876e6 in KMail::SearchJob::slotSearchDataSingleMessage (this=0x143d0e0, job=<optimized out>, data=...) at ../../kmail/searchjob.cpp:424
#7  0x00007f85f5589197 in KMail::SearchJob::qt_static_metacall (_o=0x143d0e0, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./searchjob.moc:72
#8  0x00007f85f418554f in QMetaObject::activate (sender=0x22f0a60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffbb75f130) at kernel/qobject.cpp:3547
#9  0x00007f85f5d0dbac in KJob::infoMessage (this=<optimized out>, _t1=0x22f0a60, _t2=..., _t3=...) at ./kjob.moc:222
#10 0x00007f85f09dd697 in KIO::SimpleJobPrivate::_k_slotSlaveInfoMessage (this=<optimized out>, msg=...) at ../../kio/kio/job.cpp:516
#11 0x00007f85f418554f in QMetaObject::activate (sender=0x1267c60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffbb75f2a0) at kernel/qobject.cpp:3547
#12 0x00007f85f0a7cad5 in KIO::SlaveInterface::infoMessage (this=this@entry=0x1267c60, _t1=...) at ./slaveinterface.moc:301
#13 0x00007f85f0a7f233 in KIO::SlaveInterface::dispatch (this=0x1267c60, _cmd=26, rawdata=...) at ../../kio/kio/slaveinterface.cpp:291
#14 0x00007f85f0a7beca in KIO::SlaveInterface::dispatch (this=0x1267c60) at ../../kio/kio/slaveinterface.cpp:88
#15 0x00007f85f0a7032e in KIO::Slave::gotInput (this=0x1267c60) at ../../kio/kio/slave.cpp:344
#16 0x00007f85f418554f in QMetaObject::activate (sender=0x2519990, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#17 0x00007f85f09b24f2 in dequeue (this=<optimized out>) at ../../kio/kio/connection.cpp:82
#18 KIO::ConnectionPrivate::dequeue (this=0x2689310) at ../../kio/kio/connection.cpp:71
#19 0x00007f85f4184a2e in QObject::event (this=0x2519990, e=<optimized out>) at kernel/qobject.cpp:1195
#20 0x00007f85f46a470c in QApplicationPrivate::notify_helper (this=this@entry=0xf01530, receiver=receiver@entry=0x2519990, e=e@entry=0x23579a0) at kernel/qapplication.cpp:4556
#21 0x00007f85f46a8b8a in QApplication::notify (this=0x7fffbb760310, receiver=0x2519990, e=0x23579a0) at kernel/qapplication.cpp:4417
#22 0x00007f85f63048a6 in KApplication::notify (this=0x7fffbb760310, receiver=0x2519990, event=0x23579a0) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00007f85f416fb5e in QCoreApplication::notifyInternal (this=0x7fffbb760310, receiver=receiver@entry=0x2519990, event=event@entry=0x23579a0) at kernel/qcoreapplication.cpp:915
#24 0x00007f85f41739e1 in sendEvent (event=0x23579a0, receiver=0x2519990) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xe15220) at kernel/qcoreapplication.cpp:1539
#26 0x00007f85f419e0e3 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#27 postEventSourceDispatch (s=0xe56b70) at kernel/qeventdispatcher_glib.cpp:279
#28 0x00007f85eb533205 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f85eb533538 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f85eb5335f4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f85f419e276 in QEventDispatcherGlib::processEvents (this=0xe16b00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#32 0x00007f85f474583e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007f85f416e8af in QEventLoop::processEvents (this=this@entry=0x7fffbb75ffb0, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007f85f416eb38 in QEventLoop::exec (this=0x7fffbb75ffb0, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007f85f4173cf8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#36 0x0000000000402fe6 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:158

Reported using DrKonqi