Application that crashed: kmail
Version of the application: 1.12.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.30.9-96.fc11.x86_64 x86_64
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
KMail crashed when compact folder option form right mouse button menu was selected on the folder icon

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fadca754820 (LWP 4928))]

Thread 2 (Thread 0x7fadb8762910 (LWP 4940)):
#0  0x000000329b80b2f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x000000367fc5adab in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x0000003680a81b74 in ?? () from /usr/lib64/libQtNetwork.so.4
#3  0x000000367fc59cf5 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x000000329b80686a in start_thread () from /lib64/libpthread.so.0
#5  0x000000329acde3bd in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fadca754820 (LWP 4928)):
[KCrash Handler]
#5  0x00007fadcc51a683 in ?? () from /usr/lib64/libkmailprivate.so.4
#6  0x00007fadcc540267 in ?? () from /usr/lib64/libkmailprivate.so.4
#7  0x00007fadcc541b85 in ?? () from /usr/lib64/libkmailprivate.so.4
#8  0x00007fadcc54218a in ?? () from /usr/lib64/libkmailprivate.so.4
#9  0x00007fadcc542d78 in ?? () from /usr/lib64/libkmailprivate.so.4
#10 0x00007fadcc54402f in ?? () from /usr/lib64/libkmailprivate.so.4
#11 0x00007fadcc544af6 in ?? () from /usr/lib64/libkmailprivate.so.4
#12 0x00007fadcc122dac in GpgME::Signature::summary() const () from /usr/lib64/libkmailprivate.so.4
#13 0x000000367fd53dcc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#14 0x000000367fd38783 in QAbstractItemModel::reset() () from /usr/lib64/libQtCore.so.4
#15 0x00007fadcc12330c in GpgME::Signature::summary() const () from /usr/lib64/libkmailprivate.so.4
#16 0x000000367fd53dcc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#17 0x00007fadcc1fe5a0 in ?? () from /usr/lib64/libkmailprivate.so.4
#18 0x00007fadcc1ff240 in ?? () from /usr/lib64/libkmailprivate.so.4
#19 0x00007fadcc229f69 in ?? () from /usr/lib64/libkmailprivate.so.4
#20 0x00007fadcc226270 in ?? () from /usr/lib64/libkmailprivate.so.4
#21 0x00007fadcc3d48a5 in KMMainWidget::updateMarkAsReadAction() () from /usr/lib64/libkmailprivate.so.4
#22 0x00007fadcc3f8d9d in KMMainWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkmailprivate.so.4
#23 0x000000367fd53dcc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#24 0x00007fadcc1f9a6a in ?? () from /usr/lib64/libkmailprivate.so.4
#25 0x000000367fd53dcc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#26 0x00007fadcc2bc299 in ?? () from /usr/lib64/libkmailprivate.so.4
#27 0x00007fadcc3d626e in KMMainWidget::slotCompactFolder() () from /usr/lib64/libkmailprivate.so.4
#28 0x00007fadcc3f890d in KMMainWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkmailprivate.so.4
#29 0x000000367fd53dcc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#30 0x00000036819897f7 in QAction::triggered(bool) () from /usr/lib64/libQtGui.so.4
#31 0x000000368198ac5f in QAction::activate(QAction::ActionEvent) () from /usr/lib64/libQtGui.so.4
#32 0x0000003681d73175 in ?? () from /usr/lib64/libQtGui.so.4
#33 0x0000003681d7905a in ?? () from /usr/lib64/libQtGui.so.4
#34 0x00000036826e325e in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libkdeui.so.5
#35 0x00000036819ddda8 in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#36 0x0000003681d7b7c3 in QMenu::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#37 0x000000368198f63c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#38 0x00000036819966e1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#39 0x00000036826117f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#40 0x000000367fd3ebac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#41 0x0000003681995fd0 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib64/libQtGui.so.4
#42 0x00000036819fbe9e in ?? () from /usr/lib64/libQtGui.so.4
#43 0x00000036819fab38 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#44 0x0000003681a2287c in ?? () from /usr/lib64/libQtGui.so.4
#45 0x000000329d43790e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#46 0x000000329d43b0e8 in ?? () from /lib64/libglib-2.0.so.0
#47 0x000000329d43b20a in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#48 0x000000367fd66f36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#49 0x0000003681a2202e in ?? () from /usr/lib64/libQtGui.so.4
#50 0x000000367fd3d4b2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#51 0x000000367fd3d884 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#52 0x0000003681d7b655 in QMenu::exec(QPoint const&, QAction*) () from /usr/lib64/libQtGui.so.4
#53 0x00007fadcc1add5a in KMail::FolderView::contextMenuEvent(QContextMenuEvent*) () from /usr/lib64/libkmailprivate.so.4
#54 0x00000036819de22b in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#55 0x0000003681d35986 in QFrame::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#56 0x0000003681e66a6b in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib64/libQtGui.so.4
#57 0x0000003681e9d990 in QTreeView::viewportEvent(QEvent*) () from /usr/lib64/libQtGui.so.4
#58 0x000000367fd3dec7 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#59 0x000000368198f60c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#60 0x0000003681996bf7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#61 0x00000036826117f6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#62 0x000000367fd3ebac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#63 0x00000036819fc01e in ?? () from /usr/lib64/libQtGui.so.4
#64 0x00000036819fab38 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#65 0x0000003681a2287c in ?? () from /usr/lib64/libQtGui.so.4
#66 0x000000329d43790e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#67 0x000000329d43b0e8 in ?? () from /lib64/libglib-2.0.so.0
#68 0x000000329d43b20a in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#69 0x000000367fd66f36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#70 0x0000003681a2202e in ?? () from /usr/lib64/libQtGui.so.4
#71 0x000000367fd3d4b2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#72 0x000000367fd3d884 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#73 0x000000367fd3fa19 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#74 0x0000000000402e69 in _start ()

This bug may be a duplicate of or related to bug 213986

Reported using DrKonqi