Application that crashed: kmail
Version of the application: 1.12.0
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.30-ARCH x86_64

What I was doing when the application crashed:
kmail had just started and started checking a pop account and BAM segfault signal 11. Hope the backtrace is helpful

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 0 (LWP 2997)]

Thread 2 (Thread 0x7fcba5143910 (LWP 3005)):
#0  0x00007fcbbf2ac05d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fcbc0b9a2b2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007fcbc0b90412 in ?? () from /usr/lib/libQtCore.so.4
#3  0x00007fcbc0b99285 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007fcbbf2a757a in start_thread () from /lib/libpthread.so.0
#5  0x00007fcbbf7df16d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcbc28ce760 (LWP 2997)):
[KCrash Handler]
#5  0x00007fcbba920f90 in DwHeaders::FindField () from /usr/lib/libmimelib.so.4
#6  0x00007fcbc13ac854 in KMMessage::rawHeaderField () from /usr/lib/libkmailprivate.so.4
#7  0x00007fcbc13af0c5 in KMMessage::from () from /usr/lib/libkmailprivate.so.4
#8  0x00007fcbc15fc1cf in KMail::FancyHeaderStyle::format () from /usr/lib/libkmailprivate.so.4
#9  0x00007fcbc149f104 in KMReaderWin::writeMsgHeader () from /usr/lib/libkmailprivate.so.4
#10 0x00007fcbc14a5718 in KMReaderWin::parseMsg () from /usr/lib/libkmailprivate.so.4
#11 0x00007fcbc1494f2a in KMReaderWin::displayMessage () from /usr/lib/libkmailprivate.so.4
#12 0x00007fcbc1495104 in KMReaderWin::updateReaderWin () from /usr/lib/libkmailprivate.so.4
#13 0x00007fcbc14a0d3d in KMReaderWin::qt_metacall () from /usr/lib/libkmailprivate.so.4
#14 0x00007fcbc0c93e2c in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0x00007fcbc0c8ddd3 in QObject::event () from /usr/lib/libQtCore.so.4
#16 0x00007fcbc012ae2c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#17 0x00007fcbc01320fe in QApplication::notify () from /usr/lib/libQtGui.so.4
#18 0x00007fcbc2312f46 in KApplication::notify () from /usr/lib/libkdeui.so.5
#19 0x00007fcbc0c7ed2c in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#20 0x00007fcbc0caa352 in ?? () from /usr/lib/libQtCore.so.4
#21 0x00007fcbc0ca72bd in ?? () from /usr/lib/libQtCore.so.4
#22 0x00007fcbb7cb2dbe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0x00007fcbb7cb6568 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#24 0x00007fcbb7cb6690 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0x00007fcbc0ca7206 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#26 0x00007fcbc01bde0e in ?? () from /usr/lib/libQtGui.so.4
#27 0x00007fcbc0c7d632 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#28 0x00007fcbc0c7da04 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#29 0x00007fcbc0c7fbb9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#30 0x0000000000402f89 in _start ()

This bug may be a duplicate of or related to bug 193891

Reported using DrKonqi