Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
At the moment, this happens every time:

* Start Kontact
* Navigate to a mailbox (IMAP)
* Click on a mail
* Switch to another desktop and wait a few seconds
* Kontact segfaults.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f306d768750 (LWP 4613))]

Thread 3 (Thread 0x7f305168c910 (LWP 4618)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f306c08c477 in QWaitConditionPrivate::wait (this=0x2608698, mutex=0x2608690, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=0x2608698, mutex=0x2608690, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f306c0822d1 in QThreadPoolThread::run (this=0x2433e20) at concurrent/qthreadpool.cpp:140
#4  0x00007f306c08b4a5 in QThreadPrivate::start (arg=0x2433e20) at thread/qthread_unix.cpp:188
#5  0x00007f306504f73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f306ae7a2fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f305085e910 (LWP 4623)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f306c08c477 in QWaitConditionPrivate::wait (this=0x2608698, mutex=0x2608690, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=0x2608698, mutex=0x2608690, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f306c0822d1 in QThreadPoolThread::run (this=0x23c0c10) at concurrent/qthreadpool.cpp:140
#4  0x00007f306c08b4a5 in QThreadPrivate::start (arg=0x23c0c10) at thread/qthread_unix.cpp:188
#5  0x00007f306504f73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f306ae7a2fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 1 (Thread 0x7f306d768750 (LWP 4613)):
[KCrash Handler]
#5  DwEntity::Headers (this=0x7f3070000017) at ../../mimelib/entity.cpp:241
#6  0x00007f3056439341 in KMMessage::rawHeaderField (this=0x28d7cf0, name=...) at ../../kmail/kmmessage.cpp:1958
#7  0x00007f305643b595 in KMMessage::from (this=0x28d7cf0) at ../../kmail/kmmessage.cpp:1710
#8  0x00007f3056691450 in KMail::FancyHeaderStyle::format (this=<value optimized out>, message=0x28d7cf0, strategy=0x1a5cca0, vCardName=..., printing=false, topLevel=true)
    at ../../kmail/headerstyle.cpp:457
#9  0x00007f305652cb55 in KMReaderWin::writeMsgHeader (this=0x1f7b6e0, aMsg=0x28d7cf0, hasVCard=false, topLevel=4) at ../../kmail/kmreaderwin.cpp:1783
#10 0x00007f30565336f0 in KMReaderWin::parseMsg (this=0x1f7b6e0, aMsg=0x28d7cf0) at ../../kmail/kmreaderwin.cpp:1668
#11 0x00007f30565229fa in KMReaderWin::displayMessage (this=0x1f7b6e0) at ../../kmail/kmreaderwin.cpp:1605
#12 0x00007f3056522be5 in KMReaderWin::updateReaderWin (this=0x1f7b6e0) at ../../kmail/kmreaderwin.cpp:1545
#13 0x00007f305652d71d in KMReaderWin::setMsg (this=0x1f7b6e0, aMsg=0x28d7cf0, force=true) at ../../kmail/kmreaderwin.cpp:1347
#14 0x00007f305652e565 in KMReaderWin::slotMessageArrived (this=0x1f7b6e0, msg=0x28d7cf0) at ../../kmail/kmreaderwin.cpp:935
#15 0x00007f305652e837 in KMReaderWin::qt_metacall (this=0x1f7b6e0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff997a4590) at ./kmreaderwin.moc:196
#16 0x00007f306c185df2 in QMetaObject::activate (sender=0x2904860, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x6d6f72) at kernel/qobject.cpp:3112
#17 0x00007f305671e99f in KMail::FolderJob::messageRetrieved (this=0x7f3070000017, _t1=0x28d7cf0) at ./folderjob.moc:99
#18 0x00007f305672a408 in KMail::ImapJob::slotGetMessageResult (this=0x2904860, job=0x290c480) at ../../kmail/imapjob.cpp:460
#19 0x00007f305672d667 in KMail::ImapJob::qt_metacall (this=0x2904860, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff997a47d0) at ./imapjob.moc:82
#20 0x00007f306c185df2 in QMetaObject::activate (sender=0x290c480, from_signal_index=<value optimized out>, to_signal_index=7, argv=0x6d6f72) at kernel/qobject.cpp:3112
#21 0x00007f306c55de52 in KJob::result (this=0x7f3070000017, _t1=0x290c480) at ./kjob.moc:188
#22 0x00007f306c55e1cf in KJob::emitResult (this=0x290c480) at ../../kdecore/jobs/kjob.cpp:304
#23 0x00007f30699e4ec0 in KIO::SimpleJob::slotFinished (this=0x290c480) at ../../kio/kio/job.cpp:477
#24 0x00007f30699e5383 in KIO::TransferJob::slotFinished (this=0x290c480) at ../../kio/kio/job.cpp:948
#25 0x00007f30699e009d in KIO::TransferJob::qt_metacall (this=0x290c480, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff997a4bd0) at ./jobclasses.moc:343
#26 0x00007f306c185df2 in QMetaObject::activate (sender=0x23d5780, from_signal_index=<value optimized out>, to_signal_index=8, argv=0x6d6f72) at kernel/qobject.cpp:3112
#27 0x00007f3069aa2021 in KIO::SlaveInterface::dispatch (this=0x23d5780, _cmd=104, rawdata=<value optimized out>) at ../../kio/kio/slaveinterface.cpp:175
#28 0x00007f3069a9eab2 in KIO::SlaveInterface::dispatch (this=0x23d5780) at ../../kio/kio/slaveinterface.cpp:91
#29 0x00007f3069a9151e in KIO::Slave::gotInput (this=0x23d5780) at ../../kio/kio/slave.cpp:322
#30 0x00007f3069a93848 in KIO::Slave::qt_metacall (this=0x23d5780, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff997a4ff0) at ./slave.moc:76
#31 0x00007f306c185df2 in QMetaObject::activate (sender=0x23d90b0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x6d6f72) at kernel/qobject.cpp:3112
#32 0x00007f30699add91 in KIO::ConnectionPrivate::dequeue (this=0x23d8f10) at ../../kio/kio/connection.cpp:82
#33 0x00007f30699ae1ea in KIO::Connection::qt_metacall (this=0x23d90b0, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x28d7960) at ./connection.moc:73
#34 0x00007f306c1806c8 in QObject::event (this=0x23d90b0, e=0x290c8c0) at kernel/qobject.cpp:1110
#35 0x00007f306b5ea01d in QApplicationPrivate::notify_helper (this=0x161c900, receiver=0x23d90b0, e=0x290c8c0) at kernel/qapplication.cpp:4065
#36 0x00007f306b5f207a in QApplication::notify (this=0x7fff997a5b50, receiver=0x23d90b0, e=0x290c8c0) at kernel/qapplication.cpp:4030
#37 0x00007f306cb100db in KApplication::notify (this=0x7fff997a5b50, receiver=0x23d90b0, event=0x290c8c0) at ../../kdeui/kernel/kapplication.cpp:302
#38 0x00007f306c170c9c in QCoreApplication::notifyInternal (this=0x7fff997a5b50, receiver=0x23d90b0, event=0x290c8c0) at kernel/qcoreapplication.cpp:610
#39 0x00007f306c1718e4 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x15ec340) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x15ec340) at kernel/qcoreapplication.cpp:1247
#41 0x00007f306c1997d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#42 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#43 0x00007f30652a012a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#44 0x00007f30652a3988 in ?? () from /lib/libglib-2.0.so.0
#45 0x00007f30652a3b3c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#46 0x00007f306c19939c in QEventDispatcherGlib::processEvents (this=0x15ebf70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#47 0x00007f306b680f1f in QGuiEventDispatcherGlib::processEvents (this=0x7f3070000017, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#48 0x00007f306c16f562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#49 0x00007f306c16f934 in QEventLoop::exec (this=0x7fff997a59b0, flags=...) at kernel/qeventloop.cpp:201
#50 0x00007f306c171ba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#51 0x0000000000404751 in main (argc=1, argv=0x7fff997a6138) at ../../../kontact/src/main.cpp:218
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 204960

Reported using DrKonqi