#0  __GI_raise (sig=sig@entry=11) at ../sysdeps/unix/sysv/linux/raise.c:51
  [Error: raise.c was not found in source tree]
#1  0x00007f4bf77e17f9 in KCrash::defaultCrashHandler (sig=11) at ./src/kcrash.cpp:538
  [Error: kcrash.cpp was not found in source tree]
#2  <signal handler called>
#3  QList<KMainWindow*>::QList (this=0x7f4ba75b87d0, l=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:807
  [Error: qlist.h was not found in source tree]
#4  0x00007f4bf4f9686a in KMainWindow::memberList () at ./src/kmainwindow.cpp:923
  [Error: kmainwindow.cpp was not found in source tree]
#5  0x00007f4bf7d4f4c7 in KMKernel::dumpDeadLetters (this=<optimized out>) at ./src/kmkernel.cpp:1127
  1122:     if (shuttingDown()) {
  1123:         return;    //All documents should be saved before shutting down is set!
  1124:     }
  1125: 
  1126:     // make all composer windows autosave their contents
  1127:     foreach (KMainWindow *window, KMainWindow::memberList()) {
  1128:         if (KMail::Composer *win = ::qobject_cast<KMail::Composer *>(window)) {
  1129:             win->autoSaveMessage(true);
  1130: 
  1131:             while (win->isComposing()) {
  1132:                 qCWarning(KMAIL_LOG) << "Danger, using an event loop, this should no longer be happening!";
#6  0x00007f4bf7d56c47 in kmCrashHandler (sigId=<optimized out>) at ./src/kmkernel.cpp:997
   992: static void kmCrashHandler(int sigId)
   993: {
   994:     fprintf(stderr, "*** KMail got signal %d (Exiting)\n", sigId);
   995:     // try to cleanup all windows
   996:     if (kmkernel) {
   997:         kmkernel->dumpDeadLetters();
   998:         fprintf(stderr, "*** Dead letters dumped.\n");
   999:         kmkernel->stopAgentInstance();
  1000:         kmkernel->cleanupTemporaryFiles();
  1001:     }
  1002: }
#7  0x00007f4bf77e13e1 in KCrash::defaultCrashHandler (sig=6) at ./src/kcrash.cpp:392
  [Error: kcrash.cpp was not found in source tree]
#8  <signal handler called>
#9  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
  [Error: raise.c was not found in source tree]
#10 0x00007f4bf54c5801 in __GI_abort () at abort.c:79
  [Error: abort.c was not found in source tree]
#11 0x00007f4bf5c98fa7 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1690
  [Error: qlogging.cpp was not found in source tree]
#12 QMessageLogger::fatal (this=this@entry=0x7f4ba75b9190, msg=msg@entry=0x7f4bf5f77c18 "ASSERT failure in %s: \"%s\", file %s, line %d") at global/qlogging.cpp:796
  [Error: qlogging.cpp was not found in source tree]
#13 0x00007f4bf5c944da in qt_assert_x (where=where@entry=0x7f4bdcf46216 "Q_GLOBAL_STATIC", what=what@entry=0x7f4bdcf46138 "The global static was used after being destroyed", file=file@entry=0x7f4bdcf460f8 "/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobalstatic.h", line=line@entry=138) at global/qglobal.cpp:3088
  [Error: qglobal.cpp was not found in source tree]
#14 0x00007f4bdcefff43 in QGlobalStatic<Akonadi::Protocol::FactoryPrivate, Akonadi::Protocol::(anonymous namespace)::Q_QGS_sFactoryPrivate::innerFunction, Akonadi::Protocol::(anonymous namespace)::Q_QGS_sFactoryPrivate::guard>::operator-> (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobalstatic.h:138
  [Error: qglobalstatic.h was not found in source tree]
#15 0x00007f4bdcf23d7b in QGlobalStatic<Akonadi::Protocol::FactoryPrivate, Akonadi::Protocol::(anonymous namespace)::Q_QGS_sFactoryPrivate::innerFunction, Akonadi::Protocol::(anonymous namespace)::Q_QGS_sFactoryPrivate::guard>::operator-> (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:443
  [Error: qsharedpointer_impl.h was not found in source tree]
#16 Akonadi::Protocol::Factory::response (type=<optimized out>) at ./src/private/protocol.cpp:374
  [Error: protocol.cpp was not found in source tree]
#17 0x00007f4bdcf2bfdd in Akonadi::Protocol::deserialize (device=0x7f4b98005260) at ./obj-x86_64-linux-gnu/src/private/protocol_gen.cpp:242
  [Error: protocol_gen.cpp was not found in source tree]
#18 0x00007f4bef4f3977 in Akonadi::Connection::dataReceived (this=0x7f4b98004e60) at ./src/core/connection.cpp:212
  [Error: connection.cpp was not found in source tree]
#19 0x00007f4bf5ebb2bf in QtPrivate::QSlotObjectBase::call (a=0x7f4ba75b9440, r=0x7f4b98004e60, this=0x7f4b98005ab0) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
  [Error: qobject_impl.h was not found in source tree]
#20 QMetaObject::activate (sender=0x7f4b98005260, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3749
  [Error: qobject.cpp was not found in source tree]
#21 0x00007f4bf5ebb1a5 in QMetaObject::activate (sender=sender@entry=0x7f4b98005418, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3766
  [Error: qobject.cpp was not found in source tree]
#22 0x00007f4bf5ebb877 in QMetaObject::activate (sender=sender@entry=0x7f4b98005418, m=m@entry=0x7f4bf63428e0 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3628
  [Error: qobject.cpp was not found in source tree]
#23 0x00007f4bf5daf070 in QIODevice::readyRead (this=this@entry=0x7f4b98005418) at .moc/moc_qiodevice.cpp:185
  [Error: moc_qiodevice.cpp was not found in source tree]
#24 0x00007f4bec46ac03 in QAbstractSocketPrivate::emitReadyRead (this=this@entry=0x7f4b98005470, channel=channel@entry=0) at socket/qabstractsocket.cpp:1304
  [Error: qabstractsocket.cpp was not found in source tree]
#25 0x00007f4bec46acb4 in QAbstractSocketPrivate::canReadNotification (this=0x7f4b98005470) at socket/qabstractsocket.cpp:729
  [Error: qabstractsocket.cpp was not found in source tree]
#26 0x00007f4bec47b871 in QReadNotifier::event (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1273
  [Error: qnativesocketengine.cpp was not found in source tree]
#27 0x00007f4bf6c0a82c in QApplicationPrivate::notify_helper (this=this@entry=0x559029bec610, receiver=receiver@entry=0x55902a13d6b0, e=e@entry=0x7f4ba75b9800) at kernel/qapplication.cpp:3722
  [Error: qapplication.cpp was not found in source tree]
#28 0x00007f4bf6c120f4 in QApplication::notify (this=0x7ffe7ed6c9d0, receiver=0x55902a13d6b0, e=0x7f4ba75b9800) at kernel/qapplication.cpp:3481
  [Error: qapplication.cpp was not found in source tree]
#29 0x00007f4bf5e8c5c8 in QCoreApplication::notifyInternal2 (receiver=0x55902a13d6b0, event=event@entry=0x7f4ba75b9800) at kernel/qcoreapplication.cpp:1016
  [Error: qcoreapplication.cpp was not found in source tree]
#30 0x00007f4bf5ee613d in QCoreApplication::sendEvent (event=0x7f4ba75b9800, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
  [Error: qcoreapplication.h was not found in source tree]
#31 socketNotifierSourceDispatch (source=0x7f4b98004c20) at kernel/qeventdispatcher_glib.cpp:106
  [Error: qeventdispatcher_glib.cpp was not found in source tree]
#32 0x00007f4be9241287 in ?? ()
#33 0x0000000000000000 in ?? ()