Application: kmail (4.7.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.8.0
Operating System: Linux 3.1.5-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Writing a new message (no link with the crash, I think).
I was not able to read the distant messages in my IMAP folders ("Réception du contenu du dossier / Veuillez patienter..."). I tried to double-clic on them, one opened after a few minutes and I have also been able to read it.

- Unusual behavior I noticed:
I was not able to open any message on my IMAP account.

(and I've lost my draft, it could be cool to implement a draft autosave option)

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9f7c4427a0 (LWP 1879))]

Thread 3 (Thread 0x7f9f5d038700 (LWP 1921)):
#0  0x00007f9f77580b54 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007f9f6ddabcfc in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007f9f6ddabe29 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007f9f7757cdf0 in start_thread () from /lib/libpthread.so.0
#4  0x00007f9f797853ed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9f5c737700 (LWP 1922)):
#0  0x00007f9f7977d173 in poll () from /lib/libc.so.6
#1  0x00007f9f72123d58 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007f9f72124219 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f9f7a0fb166 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#4  0x00007f9f7a0cae92 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0x00007f9f7a0cb0e7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007f9f79fcbd47 in QThread::exec() () from /usr/lib/libQtCore.so.4
#7  0x00007f9f79fced6b in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007f9f7757cdf0 in start_thread () from /lib/libpthread.so.0
#9  0x00007f9f797853ed in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9f7c4427a0 (LWP 1879)):
[KCrash Handler]
#6  0x00007f9f7bddf534 in KProgressDialog::wasCancelled() const () from /usr/lib/libkdeui.so.5
#7  0x00007f9f7b1f8212 in KMCommand::slotMsgTransfered(QList<Akonadi::Item> const&) () from /usr/lib/libkmailprivate.so.4
#8  0x00007f9f7b1fc5e9 in KMCommand::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkmailprivate.so.4
#9  0x00007f9f7b1fc9a0 in KMEditMsgCommand::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkmailprivate.so.4
#10 0x00007f9f7a0e0159 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#11 0x00007f9f75ff2be2 in Akonadi::ItemFetchJob::itemsReceived(QList<Akonadi::Item> const&) () from /usr/lib/libakonadi-kde.so.4
#12 0x00007f9f75ff3a04 in Akonadi::ItemFetchJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libakonadi-kde.so.4
#13 0x00007f9f7a0e0159 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x00007f9f7b86d472 in KJob::result(KJob*) () from /usr/lib/libkdecore.so.5
#15 0x00007f9f7b86d4b0 in KJob::emitResult() () from /usr/lib/libkdecore.so.5
#16 0x00007f9f7600610d in Akonadi::Job::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libakonadi-kde.so.4
#17 0x00007f9f75ff3905 in Akonadi::ItemFetchJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libakonadi-kde.so.4
#18 0x00007f9f7a0e5116 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#19 0x00007f9f7a5ec854 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007f9f7a5f16d3 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007f9f7be61ef6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#22 0x00007f9f7a0cc0ac in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#23 0x00007f9f7a0cf94a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#24 0x00007f9f7a0facd3 in ?? () from /usr/lib/libQtCore.so.4
#25 0x00007f9f7212384d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x00007f9f72124048 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x00007f9f72124219 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0x00007f9f7a0fb0ff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#29 0x00007f9f7a68ff1e in ?? () from /usr/lib/libQtGui.so.4
#30 0x00007f9f7a0cae92 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x00007f9f7a0cb0e7 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0x00007f9f7a0cfc45 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#33 0x0000000000402c43 in ?? ()
#34 0x00007f9f796d214d in __libc_start_main () from /lib/libc.so.6
#35 0x0000000000403125 in _start ()

Reported using DrKonqi