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 x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Start system, start kmail, click on any message, CRASH. Re-open kmail, works fine.

Seems to a duplicate of other bug reports of a similar nature

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  DwEntity::Headers (this=0x6400650064) at ../../mimelib/entity.cpp:242
#6  0x00007fbdefee37c1 in KMMessage::rawHeaderField (this=0x2620210, name=...) at ../../kmail/kmmessage.cpp:1958
#7  0x00007fbdefee5be5 in KMMessage::from (this=0x2620210) at ../../kmail/kmmessage.cpp:1710
#8  0x00007fbdf0136857 in KMail::FancyHeaderStyle::format (this=<value optimized out>, message=<value optimized out>, strategy=<value optimized out>, vCardName=<value optimized out>, 
    printing=<value optimized out>, topLevel=true) at ../../kmail/headerstyle.cpp:457
#9  0x00007fbdeffd8367 in KMReaderWin::writeMsgHeader (this=0x1c8ed90, aMsg=<value optimized out>, hasVCard=false, topLevel=<value optimized out>) at ../../kmail/kmreaderwin.cpp:1783
#10 0x00007fbdeffdebf8 in KMReaderWin::parseMsg (this=0x1c8ed90, aMsg=0x2620210) at ../../kmail/kmreaderwin.cpp:1668
#11 0x00007fbdeffcdeda in KMReaderWin::displayMessage (this=0x1c8ed90) at ../../kmail/kmreaderwin.cpp:1605
#12 0x00007fbdeffce0b4 in KMReaderWin::updateReaderWin (this=0x1c8ed90) at ../../kmail/kmreaderwin.cpp:1545
#13 0x00007fbdeffd6d9d in KMReaderWin::update (this=0x6400650064, observable=0x2620210) at ../../kmail/kmreaderwin.cpp:947
#14 0x00007fbdf01ff6d9 in KMail::ISubject::notify (this=0x26202e0) at ../../kmail/isubject.cpp:30
#15 0x00007fbdefeeaeec in KMMessage::updateBodyPart (this=0x2620210, partSpecifier=) at ../../kmail/kmmessage.cpp:3235
#16 0x00007fbdf01d3bca in KMail::ImapJob::slotGetMessageResult (this=0x26c7620, job=<value optimized out>) at ../../kmail/imapjob.cpp:435
#17 0x00007fbdf01d804b in KMail::ImapJob::qt_metacall (this=0x26c7620, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffedf64430) at ./imapjob.moc:82
#18 0x00007fbdeec14ddc in QMetaObject::activate (sender=0x26207f0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x6d6f72) at kernel/qobject.cpp:3113
#19 0x00007fbdf089daf2 in KJob::result (this=0x6400650064, _t1=0x26207f0) at ./kjob.moc:188
#20 0x00007fbdf089de6f in KJob::emitResult (this=0x26207f0) at ../../kdecore/jobs/kjob.cpp:304
#21 0x00007fbde89bdd93 in KIO::SimpleJob::slotFinished (this=0x26207f0) at ../../kio/kio/job.cpp:477
#22 0x00007fbde89be253 in KIO::TransferJob::slotFinished (this=0x26207f0) at ../../kio/kio/job.cpp:948
#23 0x00007fbde89bcb61 in KIO::TransferJob::qt_metacall (this=0x26207f0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffedf64850) at ./jobclasses.moc:343
#24 0x00007fbdeec14ddc in QMetaObject::activate (sender=0x23bfc90, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x6d6f72) at kernel/qobject.cpp:3113
#25 0x00007fbde8a7ea81 in KIO::SlaveInterface::dispatch (this=0x23bfc90, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:175
#26 0x00007fbde8a7b333 in KIO::SlaveInterface::dispatch (this=0x23bfc90) at ../../kio/kio/slaveinterface.cpp:91
#27 0x00007fbde8a6e14d in KIO::Slave::gotInput (this=0x23bfc90) at ../../kio/kio/slave.cpp:322
#28 0x00007fbde8a7026c in KIO::Slave::qt_metacall (this=0x23bfc90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffedf64c10) at ./slave.moc:76
#29 0x00007fbdeec14ddc in QMetaObject::activate (sender=0x23c1960, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x6d6f72) at kernel/qobject.cpp:3113
#30 0x00007fbde898af57 in KIO::ConnectionPrivate::dequeue (this=0x23c18a0) at ../../kio/kio/connection.cpp:82
#31 0x00007fbde898b07d in KIO::Connection::qt_metacall (this=0x23c1960, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x261f7a0) at ./connection.moc:73
#32 0x00007fbdeec0f0f9 in QObject::event (this=0x23c1960, e=0x24f1030) at kernel/qobject.cpp:1111
#33 0x00007fbdef092efc in QApplicationPrivate::notify_helper (this=0x18d2690, receiver=0x23c1960, e=0x24f1030) at kernel/qapplication.cpp:4056
#34 0x00007fbdef09a1ce in QApplication::notify (this=0x7fffedf656e0, receiver=0x23c1960, e=0x24f1030) at kernel/qapplication.cpp:4021
#35 0x00007fbdf0e55ab6 in KApplication::notify (this=0x7fffedf656e0, receiver=0x23c1960, event=0x24f1030) at ../../kdeui/kernel/kapplication.cpp:302
#36 0x00007fbdeebffc2c in QCoreApplication::notifyInternal (this=0x7fffedf656e0, receiver=0x23c1960, event=0x24f1030) at kernel/qcoreapplication.cpp:610
#37 0x00007fbdeec0080a in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x17b9d00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x17b9d00) at kernel/qcoreapplication.cpp:1247
#39 0x00007fbdeec28533 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#40 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:210
#41 0x00007fbde5e98bbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#42 0x00007fbde5e9c588 in ?? () from /lib/libglib-2.0.so.0
#43 0x00007fbde5e9c6b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#44 0x00007fbdeec281a6 in QEventDispatcherGlib::processEvents (this=0x17b9930, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#45 0x00007fbdef1274be in QGuiEventDispatcherGlib::processEvents (this=0x6400650064, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#46 0x00007fbdeebfe532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#47 0x00007fbdeebfe904 in QEventLoop::exec (this=0x7fffedf65510, flags=) at kernel/qeventloop.cpp:201
#48 0x00007fbdeec00ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#49 0x0000000000402fe9 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../kmail/main.cpp:146

This bug may be a duplicate of or related to bug 201079

Reported using DrKonqi