Application that crashed: kmail
Version of the application: 1.12.4
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
Click on new mail. Crash. No more details right now.

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f4055bdf710 (LWP 26166))]

Thread 3 (Thread 0x7f403e9da910 (LWP 27050)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007f40364b6dd1 in ?? () from /usr/lib/libxine.so.1
#2  0x00007f404ed3a73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007f4052a6c2fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f402c259910 (LWP 27053)):
#0  0x00007f4052a65be2 in select () from /lib/libc.so.6
#1  0x00007f4053fa32bb in QEventDispatcherUNIX::select (this=<value optimized out>, nfds=25, readfds=0x3c0b7f0, writefds=0x3c0ba88, exceptfds=0x3c0bd20, timeout=0x0)
    at kernel/qeventdispatcher_unix.cpp:625
#2  0x00007f4053fa3c5d in QEventDispatcherUNIXPrivate::doSelect (this=0x3c0b640, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:170
#3  0x00007f4053fa53ed in QEventDispatcherUNIX::processEvents (this=0x3df89e0, flags=...) at kernel/qeventdispatcher_unix.cpp:912
#4  0x00007f4053f77562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4053f77934 in QEventLoop::exec (this=0x7f402c259040, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f4053e905a8 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f4036711aec in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#8  0x00007f4053e934a5 in QThreadPrivate::start (arg=0x3b14390) at thread/qthread_unix.cpp:188
#9  0x00007f404ed3a73a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f4052a6c2fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 1 (Thread 0x7f4055bdf710 (LWP 26166)):
[KCrash Handler]
#5  0x00007f40547a5b97 in KMReaderWin::parseMsg (this=0x20d2060, aMsg=0x27e9d50) at ../../kmail/kmreaderwin.cpp:1688
#6  0x00007f4054794ada in KMReaderWin::displayMessage (this=0x20d2060) at ../../kmail/kmreaderwin.cpp:1608
#7  0x00007f4054794cb4 in KMReaderWin::updateReaderWin (this=0x20d2060) at ../../kmail/kmreaderwin.cpp:1548
#8  0x00007f40547a1d9d in KMReaderWin::qt_metacall (this=0x20d2060, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5e9dd2f0) at ./kmreaderwin.moc:168
#9  0x00007f4053f8ddf2 in QMetaObject::activate (sender=0x20d2108, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x3) at kernel/qobject.cpp:3112
#10 0x00007f4053f88353 in QObject::event (this=0x20d2108, e=0x4e) at kernel/qobject.cpp:1074
#11 0x00007f40533f201d in QApplicationPrivate::notify_helper (this=0x1be5800, receiver=0x20d2108, e=0x7fff5e9dd9a0) at kernel/qapplication.cpp:4065
#12 0x00007f40533fa07a in QApplication::notify (this=0x7fff5e9de060, receiver=0x20d2108, e=0x7fff5e9dd9a0) at kernel/qapplication.cpp:4030
#13 0x00007f4055618e06 in KApplication::notify (this=0x7fff5e9de060, receiver=0x20d2108, event=0x7fff5e9dd9a0) at ../../kdeui/kernel/kapplication.cpp:302
#14 0x00007f4053f78c9c in QCoreApplication::notifyInternal (this=0x7fff5e9de060, receiver=0x20d2108, event=0x7fff5e9dd9a0) at kernel/qcoreapplication.cpp:610
#15 0x00007f4053fa52c6 in QCoreApplication::sendEvent (this=0x1be6220) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#16 QTimerInfoList::activateTimers (this=0x1be6220) at kernel/qeventdispatcher_unix.cpp:580
#17 0x00007f4053fa5468 in QEventDispatcherUNIX::processEvents (this=0x1ba9b40, flags=...) at kernel/qeventdispatcher_unix.cpp:916
#18 0x00007f4053489ee2 in QEventDispatcherX11::processEvents (this=0x1ba9b40, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#19 0x00007f4053f77562 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#20 0x00007f4053f77934 in QEventLoop::exec (this=0x7fff5e9ddeb0, flags=...) at kernel/qeventloop.cpp:201
#21 0x00007f4053f79ba4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#22 0x0000000000402fa9 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../kmail/main.cpp:146
The current source language is "auto; currently c".

Reported using DrKonqi