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 2.6.31.6-desktop-1mnb i686
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
Any time I try to send an email with an attachment (of any file type) Kontact will crash.  On restarting Kontact, the email will be in the Outbox apparently undamaged and with the attachment in place.  The email can then be sent as normal.

A crash also occurs if a newly composed email with an attachment is deleted or tried to save to drafts.

This crash occurs every time! 

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xb698b0f4 in QAbstractButton::isChecked () from /usr/lib/libQtGui.so.4
#7  0xae634b97 in ?? () from /usr/lib/kde4/kfileaudiopreview.so
#8  0xb6fb1e6c in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#9  0xb661bdf7 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#10 0xb69dcfef in QFrame::~QFrame () from /usr/lib/libQtGui.so.4
#11 0xb6a4d105 in QStackedWidget::~QStackedWidget () from /usr/lib/libQtGui.so.4
#12 0xb6fb1e6c in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#13 0xb661bdf7 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#14 0xb5aa9c47 in KPreviewWidgetBase::~KPreviewWidgetBase () from /usr/lib/libkio.so.5
#15 0xb5a966c5 in KFileMetaPreview::~KFileMetaPreview () from /usr/lib/libkio.so.5
#16 0xadd6fd6e in KDirOperator::Private::~Private () from /usr/lib/libkfile.so.4
#17 0xadd6ff34 in KDirOperator::~KDirOperator () from /usr/lib/libkfile.so.4
#18 0xadd8d665 in KFileWidget::~KFileWidget () from /usr/lib/libkfile.so.4
#19 0xb6fb1e6c in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#20 0xb661bdf7 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#21 0xb6ac74c4 in QDialog::~QDialog () from /usr/lib/libQtGui.so.4
#22 0xb743e734 in KDialog::~KDialog () from /usr/lib/libkdeui.so.5
#23 0xb5a8c759 in KFileDialog::~KFileDialog () from /usr/lib/libkio.so.5
#24 0xb5a89c70 in KEncodingFileDialog::~KEncodingFileDialog () from /usr/lib/libkio.so.5
#25 0xb6fb1e6c in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#26 0xb661bdf7 in QWidget::~QWidget () from /usr/lib/libQtGui.so.4
#27 0xb69f9c2f in QMainWindow::~QMainWindow () from /usr/lib/libQtGui.so.4
#28 0xb75cc7f4 in KMainWindow::~KMainWindow () from /usr/lib/libkdeui.so.5
#29 0xb76109aa in KXmlGuiWindow::~KXmlGuiWindow () from /usr/lib/libkdeui.so.5
#30 0xb07ffb89 in ?? () from /usr/lib/libkmailprivate.so.4
#31 0xb052e555 in ?? () from /usr/lib/libkmailprivate.so.4
#32 0xb6fb1b33 in qDeleteInEventHandler () from /usr/lib/libQtCore.so.4
#33 0xb6fb30a7 in QObject::event () from /usr/lib/libQtCore.so.4
#34 0xb661ff90 in QWidget::event () from /usr/lib/libQtGui.so.4
#35 0xb69fab84 in QMainWindow::event () from /usr/lib/libQtGui.so.4
#36 0xb75c9734 in KMainWindow::event () from /usr/lib/libkdeui.so.5
#37 0xb7611292 in KXmlGuiWindow::event () from /usr/lib/libkdeui.so.5
#38 0xb65c968c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#39 0xb65d101e in QApplication::notify () from /usr/lib/libQtGui.so.4
#40 0xb74dd9e1 in KApplication::notify () from /usr/lib/libkdeui.so.5
#41 0xb6fa2c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#42 0xb6fa38bc in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#43 0xb6fa3a7c in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#44 0xb6fcedbd in ?? () from /usr/lib/libQtCore.so.4
#45 0xb48fbb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#46 0xb48ff468 in ?? () from /usr/lib/libglib-2.0.so.0
#47 0xb48ff58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#48 0xb6fce8f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#49 0xb666b4ba in ?? () from /usr/lib/libQtGui.so.4
#50 0xb6fa126d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#51 0xb6fa16b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#52 0xb468e237 in Phonon::PulseSupport::PulseSupport () from /usr/lib/libphonon.so.4
#53 0xb468e298 in Phonon::PulseSupport::getInstance () from /usr/lib/libphonon.so.4
#54 0xadc2257b in ?? () from /usr/lib/kde4/plugins/phonon_backend/phonon_gstreamer.so
#55 0xadc22aeb in qt_plugin_instance () from /usr/lib/kde4/plugins/phonon_backend/phonon_gstreamer.so
#56 0xb6f891f4 in QPluginLoader::instance () from /usr/lib/libQtCore.so.4
#57 0xadde95e4 in ?? () from /usr/lib/kde4/plugins/phonon_platform/kde.so
#58 0xaddea980 in ?? () from /usr/lib/kde4/plugins/phonon_platform/kde.so
#59 0xb467e6aa in ?? () from /usr/lib/libphonon.so.4
#60 0xb46802a3 in Phonon::Factory::backend () from /usr/lib/libphonon.so.4
#61 0xb4678256 in Phonon::BackendCapabilities::availableMimeTypes () from /usr/lib/libphonon.so.4
#62 0xae63503c in ?? () from /usr/lib/kde4/kfileaudiopreview.so
#63 0xae63612f in KPluginFactory::createInstance<KFileAudioPreview, QWidget> () from /usr/lib/kde4/kfileaudiopreview.so
#64 0xb728a999 in KPluginFactory::create () from /usr/lib/libkdecore.so.5
#65 0xb5a968d4 in KFileMetaPreview::createAudioPreview () from /usr/lib/libkio.so.5
#66 0xb5a977c6 in KFileMetaPreview::previewProviderFor () from /usr/lib/libkio.so.5
#67 0xb5a96a97 in KFileMetaPreview::showPreview () from /usr/lib/libkio.so.5
#68 0xadd6c000 in KDirOperator::Private::_k_showPreview () from /usr/lib/libkfile.so.4
#69 0xadd6c747 in KDirOperator::Private::_k_triggerPreview () from /usr/lib/libkfile.so.4
#70 0xadd79ad6 in KDirOperator::qt_metacall () from /usr/lib/libkfile.so.4
#71 0xb6fb9144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#72 0xb6fb9e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#73 0xb6b233a5 in QAbstractItemView::entered () from /usr/lib/libQtGui.so.4
#74 0xb6b2f769 in QAbstractItemView::mouseMoveEvent () from /usr/lib/libQtGui.so.4
#75 0xb6b70dac in QTreeView::mouseMoveEvent () from /usr/lib/libQtGui.so.4
#76 0xb662073f in QWidget::event () from /usr/lib/libQtGui.so.4
#77 0xb69dcc95 in QFrame::event () from /usr/lib/libQtGui.so.4
#78 0xb6a7d16c in QAbstractScrollArea::viewportEvent () from /usr/lib/libQtGui.so.4
#79 0xb6b34a94 in QAbstractItemView::viewportEvent () from /usr/lib/libQtGui.so.4
#80 0xb6b70fe0 in QTreeView::viewportEvent () from /usr/lib/libQtGui.so.4
#81 0xb6a7f7c6 in ?? () from /usr/lib/libQtGui.so.4
#82 0xb6fa1dee in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#83 0xb65c9660 in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#84 0xb65d193b in QApplication::notify () from /usr/lib/libQtGui.so.4
#85 0xb74dd9e1 in KApplication::notify () from /usr/lib/libkdeui.so.5
#86 0xb6fa2c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#87 0xb65d095c in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#88 0xb664157a in ?? () from /usr/lib/libQtGui.so.4
#89 0xb6640aee in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#90 0xb666bd88 in ?? () from /usr/lib/libQtGui.so.4
#91 0xb48fbb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#92 0xb48ff468 in ?? () from /usr/lib/libglib-2.0.so.0
#93 0xb48ff58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#94 0xb6fce8f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#95 0xb666b4ba in ?? () from /usr/lib/libQtGui.so.4
#96 0xb6fa126d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#97 0xb6fa16b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#98 0xb468e237 in Phonon::PulseSupport::PulseSupport () from /usr/lib/libphonon.so.4
#99 0xb468e298 in Phonon::PulseSupport::getInstance () from /usr/lib/libphonon.so.4
#100 0xadc2257b in ?? () from /usr/lib/kde4/plugins/phonon_backend/phonon_gstreamer.so
#101 0xadc22aeb in qt_plugin_instance () from /usr/lib/kde4/plugins/phonon_backend/phonon_gstreamer.so
#102 0xb6f891f4 in QPluginLoader::instance () from /usr/lib/libQtCore.so.4
#103 0xadde95e4 in ?? () from /usr/lib/kde4/plugins/phonon_platform/kde.so
#104 0xaddea980 in ?? () from /usr/lib/kde4/plugins/phonon_platform/kde.so
#105 0xb467e6aa in ?? () from /usr/lib/libphonon.so.4
#106 0xb46802a3 in Phonon::Factory::backend () from /usr/lib/libphonon.so.4
#107 0xb4678256 in Phonon::BackendCapabilities::availableMimeTypes () from /usr/lib/libphonon.so.4
#108 0xae63503c in ?? () from /usr/lib/kde4/kfileaudiopreview.so
#109 0xae63612f in KPluginFactory::createInstance<KFileAudioPreview, QWidget> () from /usr/lib/kde4/kfileaudiopreview.so
#110 0xb728a999 in KPluginFactory::create () from /usr/lib/libkdecore.so.5
#111 0xb5a968d4 in KFileMetaPreview::createAudioPreview () from /usr/lib/libkio.so.5
#112 0xb5a977c6 in KFileMetaPreview::previewProviderFor () from /usr/lib/libkio.so.5
#113 0xb5a96a97 in KFileMetaPreview::showPreview () from /usr/lib/libkio.so.5
#114 0xadd6c000 in KDirOperator::Private::_k_showPreview () from /usr/lib/libkfile.so.4
#115 0xadd6c747 in KDirOperator::Private::_k_triggerPreview () from /usr/lib/libkfile.so.4
#116 0xadd79ad6 in KDirOperator::qt_metacall () from /usr/lib/libkfile.so.4
#117 0xb6fb9144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#118 0xb6fb9e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#119 0xb6b233a5 in QAbstractItemView::entered () from /usr/lib/libQtGui.so.4
#120 0xb6b2f769 in QAbstractItemView::mouseMoveEvent () from /usr/lib/libQtGui.so.4
#121 0xb6b70dac in QTreeView::mouseMoveEvent () from /usr/lib/libQtGui.so.4
#122 0xb662073f in QWidget::event () from /usr/lib/libQtGui.so.4
#123 0xb69dcc95 in QFrame::event () from /usr/lib/libQtGui.so.4
#124 0xb6a7d16c in QAbstractScrollArea::viewportEvent () from /usr/lib/libQtGui.so.4
#125 0xb6b34a94 in QAbstractItemView::viewportEvent () from /usr/lib/libQtGui.so.4
#126 0xb6b70fe0 in QTreeView::viewportEvent () from /usr/lib/libQtGui.so.4
#127 0xb6a7f7c6 in ?? () from /usr/lib/libQtGui.so.4
#128 0xb6fa1dee in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#129 0xb65c9660 in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#130 0xb65d193b in QApplication::notify () from /usr/lib/libQtGui.so.4
#131 0xb74dd9e1 in KApplication::notify () from /usr/lib/libkdeui.so.5
#132 0xb6fa2c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#133 0xb65d095c in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#134 0xb664157a in ?? () from /usr/lib/libQtGui.so.4
#135 0xb6640aee in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#136 0xb666bd88 in ?? () from /usr/lib/libQtGui.so.4
#137 0xb48fbb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#138 0xb48ff468 in ?? () from /usr/lib/libglib-2.0.so.0
#139 0xb48ff58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#140 0xb6fce8f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#141 0xb666b4ba in ?? () from /usr/lib/libQtGui.so.4
#142 0xb6fa126d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#143 0xb6fa16b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#144 0xb6ac80e1 in QDialog::exec () from /usr/lib/libQtGui.so.4
#145 0xb0534e2a in ?? () from /usr/lib/libkmailprivate.so.4
#146 0xb055784f in ?? () from /usr/lib/libkmailprivate.so.4
#147 0xb6fb9144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#148 0xb6fb9621 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#149 0xb65c2e55 in QAction::triggered () from /usr/lib/libQtGui.so.4
#150 0xb65c4482 in QAction::activate () from /usr/lib/libQtGui.so.4
#151 0xb6a76920 in QToolButton::nextCheckState () from /usr/lib/libQtGui.so.4
#152 0xb698db57 in ?? () from /usr/lib/libQtGui.so.4
#153 0xb698de36 in QAbstractButton::mouseReleaseEvent () from /usr/lib/libQtGui.so.4
#154 0xb6a76e2d in QToolButton::mouseReleaseEvent () from /usr/lib/libQtGui.so.4
#155 0xb662090c in QWidget::event () from /usr/lib/libQtGui.so.4
#156 0xb698bcf0 in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#157 0xb6a7987c in QToolButton::event () from /usr/lib/libQtGui.so.4
#158 0xb65c968c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#159 0xb65d193b in QApplication::notify () from /usr/lib/libQtGui.so.4
#160 0xb74dd9e1 in KApplication::notify () from /usr/lib/libkdeui.so.5
#161 0xb6fa2c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#162 0xb65d095c in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#163 0xb664157a in ?? () from /usr/lib/libQtGui.so.4
#164 0xb6640aee in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#165 0xb666bd88 in ?? () from /usr/lib/libQtGui.so.4
#166 0xb48fbb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#167 0xb48ff468 in ?? () from /usr/lib/libglib-2.0.so.0
#168 0xb48ff58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#169 0xb6fce8f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#170 0xb666b4ba in ?? () from /usr/lib/libQtGui.so.4
#171 0xb6fa126d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#172 0xb6fa16b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#173 0xb6fa3b50 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#174 0xb65c9504 in QApplication::exec () from /usr/lib/libQtGui.so.4
#175 0x0804b1c6 in _start ()

Reported using DrKonqi