Application: kontact (4.8.5)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.3
Operating System: Linux 3.6.6-1.fc16.i686.PAE i686
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
I was reading mail from a few folders. I have clicked on the next mail folder. Kontact/Kmail then crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1c619c0 (LWP 2718))]

Thread 3 (Thread 0xafa76b40 (LWP 2719)):
#0  0xb77b0424 in __kernel_vsyscall ()
#1  0xb417085c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:172
#2  0xb7032dd3 in WTF::TCMalloc_PageHeap::scavengerThread (this=0xb7769480) at wtf/FastMalloc.cpp:2495
#3  0xb7032ef0 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0xb7769480) at wtf/FastMalloc.cpp:1618
#4  0xb416ccd3 in start_thread (arg=0xafa76b40) at pthread_create.c:309
#5  0xb3ef7d7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 2 (Thread 0xaf14db40 (LWP 2720)):
#0  0xb77b0424 in __kernel_vsyscall ()
#1  0xb3eed4f0 in __GI___poll (fds=0xae800de8, nfds=1, timeout=1247) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb380bd3c in g_poll (fds=0xae800de8, nfds=1, timeout=1247) at gpoll.c:132
#3  0xb37fd146 in g_main_context_poll (n_fds=1, fds=0xae800de8, priority=<optimized out>, timeout=<optimized out>, context=0xae8004e0) at gmain.c:3402
#4  g_main_context_iterate (context=0xae8004e0, block=-1283408624, dispatch=1, self=0xae800d70) at gmain.c:3084
#5  0xb37fd4ef in g_main_context_iteration (context=0xae8004e0, may_block=1) at gmain.c:3152
#6  0xb4333fc7 in QEventDispatcherGlib::processEvents (this=0xae800468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb42fffae in QEventLoop::processEvents (this=0xaf14d210, flags=...) at kernel/qeventloop.cpp:149
#8  0xb4300259 in QEventLoop::exec (this=0xaf14d210, flags=...) at kernel/qeventloop.cpp:204
#9  0xb41e5c3c in QThread::exec (this=0x8c543f0) at thread/qthread.cpp:501
#10 0xb41e5d2c in QThread::run (this=0x8c543f0) at thread/qthread.cpp:568
#11 0xb41e920a in QThreadPrivate::start (arg=0x8c543f0) at thread/qthread_unix.cpp:338
#12 0xb416ccd3 in start_thread (arg=0xaf14db40) at pthread_create.c:309
#13 0xb3ef7d7e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133

Thread 1 (Thread 0xb1c619c0 (LWP 2718)):
[KCrash Handler]
#7  0xb40a99a2 in __cxxabiv1::__dynamic_cast (src_ptr=0xd090b20, src_type=0xad867e84, dst_type=0xad867e8c, src2dst=0) at ../../../../libstdc++-v3/libsupc++/dyncast.cc:61
#8  0xad75c0f0 in payload_cast<boost::shared_ptr<KMime::Message> > (payloadBase=0xd090b20) at /usr/include/kde4/akonadi/itempayloadinternals_p.h:320
#9  hasPayloadImpl<boost::shared_ptr<KMime::Message> > (this=0xbf891b48) at /usr/include/kde4/akonadi/item.h:613
#10 Akonadi::Item::hasPayload<boost::shared_ptr<KMime::Message> > (this=0xbf891b48) at /usr/include/kde4/akonadi/item.h:576
#11 0xad3d92bf in (anonymous namespace)::messageForItem (item=...) at /usr/src/debug/kdepim-4.8.5/messagelist/storagemodel.cpp:90
#12 0xad3d97b1 in MessageList::StorageModel::initializeMessageItem (this=0x915ef50, mi=0xf515448, row=73, bUseReceiver=false) at /usr/src/debug/kdepim-4.8.5/messagelist/storagemodel.cpp:238
#13 0xad38c617 in MessageList::Core::ModelPrivate::viewItemJobStepInternalForJobPass1Fill (this=0x92a6758, job=0xc8c0b48, tStart=...) at /usr/src/debug/kdepim-4.8.5/messagelist/core/model.cpp:2740
#14 0xad38eea8 in MessageList::Core::ModelPrivate::viewItemJobStepInternalForJob (this=0x92a6758, job=0xc8c0b48, tStart=...) at /usr/src/debug/kdepim-4.8.5/messagelist/core/model.cpp:3401
#15 0xad38f5a1 in MessageList::Core::ModelPrivate::viewItemJobStepInternal (this=0x92a6758) at /usr/src/debug/kdepim-4.8.5/messagelist/core/model.cpp:3788
#16 0xad390157 in MessageList::Core::ModelPrivate::viewItemJobStep (this=0x92a6758) at /usr/src/debug/kdepim-4.8.5/messagelist/core/model.cpp:3974
#17 0xad39120c in MessageList::Core::Model::setStorageModel (this=0x9166910, storageModel=0x11e3, preSelectionMode=146226408) at /usr/src/debug/kdepim-4.8.5/messagelist/core/model.cpp:894
#18 0xad3aef9d in MessageList::Core::View::setStorageModel (this=0x929d760, storageModel=0x915ef50, preSelectionMode=MessageList::Core::PreSelectLastSelected) at /usr/src/debug/kdepim-4.8.5/messagelist/core/view.cpp:273
#19 0xad3bfe9d in MessageList::Core::Widget::setStorageModel (this=0x926b2e8, storageModel=0x915ef50, preSelectionMode=MessageList::Core::PreSelectLastSelected) at /usr/src/debug/kdepim-4.8.5/messagelist/core/widgetbase.cpp:413
#20 0xad3d4995 in MessageList::Pane::setCurrentFolder (this=0x92581e0, preSelectionMode=MessageList::Core::PreSelectLastSelected, overrideLabel=...) at /usr/src/debug/kdepim-4.8.5/messagelist/pane.cpp:604
#21 0xad764f0f in KMMainWidget::slotShowSelectedFolderInPane (this=0x9256758) at /usr/src/debug/kdepim-4.8.5/kmail/kmmainwidget.cpp:603
#22 0xad789cfd in KMMainWidget::qt_static_metacall (_o=0x9256758, _c=QMetaObject::InvokeMetaMethod, _id=53, _a=0xe3c5b70) at /usr/src/debug/kdepim-4.8.5/i686-redhat-linux-gnu/kmail/kmmainwidget.moc:381
#23 0xb43134f2 in QMetaCallEvent::placeMetaCall (this=0xd0dc928, object=0x9256758) at kernel/qobject.cpp:525
#24 0xb431c1cb in QObject::event (this=0x9256758, e=0xd0dc928) at kernel/qobject.cpp:1195
#25 0xb492a8d2 in QWidget::event (this=0x9256758, event=0xd0dc928) at kernel/qwidget.cpp:8830
#26 0xb48cfda4 in notify_helper (e=0xd0dc928, receiver=0x9256758, this=0x8bacbb8) at kernel/qapplication.cpp:4557
#27 QApplicationPrivate::notify_helper (this=0x8bacbb8, receiver=0x9256758, e=0xd0dc928) at kernel/qapplication.cpp:4529
#28 0xb48d521b in QApplication::notify (this=0x8bacbb8, receiver=0x9256758, e=0xd0dc928) at kernel/qapplication.cpp:4522
#29 0xb54607d2 in KApplication::notify (this=0xbf892a94, receiver=0x9256758, event=0xd0dc928) at /usr/src/debug/kdelibs-4.8.5/kdeui/kernel/kapplication.cpp:311
#30 0xb43013be in QCoreApplication::notifyInternal (this=0xbf892a94, receiver=0x9256758, event=0xd0dc928) at kernel/qcoreapplication.cpp:915
#31 0xb4305318 in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8b73ce8) at kernel/qcoreapplication.cpp:1539
#33 0xb430564d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1432
#34 0xb4333b65 in sendPostedEvents () at kernel/qcoreapplication.h:236
#35 postEventSourceDispatch (s=0x8ba3950) at kernel/qeventdispatcher_glib.cpp:279
#36 0xb37fcaff in g_main_dispatch (context=0x8baec70) at gmain.c:2441
#37 g_main_context_dispatch (context=0x8baec70) at gmain.c:3011
#38 0xb37fd240 in g_main_context_iterate (context=0x8baec70, block=-1283408624, dispatch=1, self=0x8b9d6b0) at gmain.c:3089
#39 0xb37fd4ef in g_main_context_iteration (context=0x8baec70, may_block=1) at gmain.c:3152
#40 0xb4333f68 in QEventDispatcherGlib::processEvents (this=0x8b74a30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#41 0xb49849db in QGuiEventDispatcherGlib::processEvents (this=0x8b74a30, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#42 0xb42fffae in QEventLoop::processEvents (this=0xbf8929f4, flags=...) at kernel/qeventloop.cpp:149
#43 0xb4300259 in QEventLoop::exec (this=0xbf8929f4, flags=...) at kernel/qeventloop.cpp:204
#44 0xb43056fb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#45 0xb48cdbd5 in QApplication::exec () at kernel/qapplication.cpp:3818
#46 0x0804ad73 in main (argc=1, argv=0xbf892cb4) at /usr/src/debug/kdepim-4.8.5/kontact/src/main.cpp:218

Reported using DrKonqi