Application: kontact (4.8.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-27-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
Changing the folder cause kmail crash

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f96f7d187c0 (LWP 414))]

Thread 4 (Thread 0x7f96db21a700 (LWP 432)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f96f4517dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f96f4517f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f96ef9dbe9a in start_thread (arg=0x7f96db21a700) at pthread_create.c:308
#4  0x00007f96f52494bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f96da901700 (LWP 437)):
#0  __pthread_mutex_lock (mutex=0x7f96d4000a60) at pthread_mutex_lock.c:92
#1  0x00007f96ef54a5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f96ef50e1df in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f96ef50ef04 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f96ef50f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f96f59be426 in QEventDispatcherGlib::processEvents (this=0x7f96d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f96f598dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f96f598ded7 in QEventLoop::exec (this=0x7f96da900dc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f96f588cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f96f588ffcb in QThreadPrivate::start (arg=0x1df9490) at thread/qthread_unix.cpp:298
#10 0x00007f96ef9dbe9a in start_thread (arg=0x7f96da901700) at pthread_create.c:308
#11 0x00007f96f52494bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f96870b8700 (LWP 611)):
#0  0x00007f96f523db03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f96ef50f036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f96ef50f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f96f59be426 in QEventDispatcherGlib::processEvents (this=0x7f96780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f96f598dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f96f598ded7 in QEventLoop::exec (this=0x7f96870b7d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f96f588cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f96f596d9ff in QInotifyFileSystemWatcherEngine::run (this=0x2a65f60) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f96f588ffcb in QThreadPrivate::start (arg=0x2a65f60) at thread/qthread_unix.cpp:298
#9  0x00007f96ef9dbe9a in start_thread (arg=0x7f96870b8700) at pthread_create.c:308
#10 0x00007f96f52494bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f96f7d187c0 (LWP 414)):
[KCrash Handler]
#6  at (this=0x0, i=19) at /usr/include/qt4/QtCore/qlist.h:100
#7  at (i=19, this=0x0) at /usr/include/qt4/QtCore/qlist.h:470
#8  MessageList::Core::ModelInvariantRowMapperPrivate::indexDead (this=0x1ec5860, invariant=0x49dbb70) at ../../messagelist/core/modelinvariantrowmapper.cpp:135
#9  0x00007f9691233eeb in MessageList::Core::ModelInvariantIndex::~ModelInvariantIndex (this=0x49dbb70, __in_chrg=<optimized out>) at ../../messagelist/core/modelinvariantindex.cpp:37
#10 0x00007f969121c877 in MessageList::Core::MessageItem::~MessageItem (this=0x49dbb60, __in_chrg=<optimized out>) at ../../messagelist/core/messageitem.cpp:266
#11 0x00007f969121c919 in MessageList::Core::MessageItem::~MessageItem (this=0x49dbb60, __in_chrg=<optimized out>) at ../../messagelist/core/messageitem.cpp:268
#12 0x00007f9691210ec5 in MessageList::Core::Item::killAllChildItems (this=0x32c7b10) at ../../messagelist/core/item.cpp:400
#13 0x00007f9691212417 in MessageList::Core::Item::~Item (this=0x32c7b10, __in_chrg=<optimized out>) at ../../messagelist/core/item.cpp:47
#14 0x00007f9691212c69 in MessageList::Core::GroupHeaderItem::~GroupHeaderItem (this=0x32c7b10, __in_chrg=<optimized out>) at ../../messagelist/core/groupheaderitem.cpp:32
#15 0x00007f9691210ec5 in MessageList::Core::Item::killAllChildItems (this=0x2288340) at ../../messagelist/core/item.cpp:400
#16 0x00007f969122c81f in MessageList::Core::Model::setStorageModel (this=0x222f0f0, storageModel=0x315a690, preSelectionMode=MessageList::Core::PreSelectLastSelected) at ../../messagelist/core/model.cpp:714
#17 0x00007f96912485c5 in MessageList::Core::View::setStorageModel (this=0x23dce50, storageModel=<optimized out>, preSelectionMode=<optimized out>) at ../../messagelist/core/view.cpp:273
#18 0x00007f969125712f in MessageList::Core::Widget::setStorageModel (this=0x1ef0e00, storageModel=0x315a690, preSelectionMode=MessageList::Core::PreSelectLastSelected) at ../../messagelist/core/widgetbase.cpp:412
#19 0x00007f969126879a in MessageList::Pane::setCurrentFolder (this=0x235fb50, preSelectionMode=MessageList::Core::PreSelectLastSelected, overrideLabel=...) at ../../messagelist/pane.cpp:604
#20 0x00007f9691e33289 in KMMainWidget::slotShowSelectedFolderInPane (this=<optimized out>) at ../../kmail/kmmainwidget.cpp:603
#21 0x00007f9691e54fea in KMMainWidget::qt_static_metacall (_o=0x22ff760, _c=<optimized out>, _id=<optimized out>, _a=0x41ec840) at ./kmmainwidget.moc:382
#22 0x00007f96f59a8446 in QObject::event (this=0x22ff760, e=<optimized out>) at kernel/qobject.cpp:1195
#23 0x00007f96f63d9b7b in QWidget::event (this=0x22ff760, event=0x2f2b2c0) at kernel/qwidget.cpp:8821
#24 0x00007f96f6389894 in notify_helper (e=0x2f2b2c0, receiver=0x22ff760, this=0x1c841b0) at kernel/qapplication.cpp:4559
#25 QApplicationPrivate::notify_helper (this=0x1c841b0, receiver=0x22ff760, e=0x2f2b2c0) at kernel/qapplication.cpp:4531
#26 0x00007f96f638e713 in QApplication::notify (this=0x7fffbf67fca0, receiver=0x22ff760, e=0x2f2b2c0) at kernel/qapplication.cpp:4420
#27 0x00007f96f70c39e6 in KApplication::notify (this=0x7fffbf67fca0, receiver=0x22ff760, event=0x2f2b2c0) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007f96f598ee9c in QCoreApplication::notifyInternal (this=0x7fffbf67fca0, receiver=0x22ff760, event=0x2f2b2c0) at kernel/qcoreapplication.cpp:876
#29 0x00007f96f5992c6a in sendEvent (event=0x2f2b2c0, receiver=0x22ff760) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1c4d380) at kernel/qcoreapplication.cpp:1500
#31 0x00007f96f59bdf93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#32 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#33 0x00007f96ef50ed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f96ef50f0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f96ef50f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f96f59be3bf in QEventDispatcherGlib::processEvents (this=0x1c4ec10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#37 0x00007f96f6431d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f96f598dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007f96f598ded7 in QEventLoop::exec (this=0x7fffbf67e310, flags=...) at kernel/qeventloop.cpp:204
#40 0x00007f96f67d8131 in QMenu::exec (this=<optimized out>, p=..., action=0x0) at widgets/qmenu.cpp:2113
#41 0x00007f96f1d9dc3a in Akonadi::EntityTreeView::contextMenuEvent (this=<optimized out>, event=0x7fffbf67eff0) at ../../akonadi/entitytreeview.cpp:278
#42 0x00007f96f63d9e94 in QWidget::event (this=0x22e79f0, event=0x7fffbf67eff0) at kernel/qwidget.cpp:8529
#43 0x00007f96f679a3b6 in QFrame::event (this=0x22e79f0, e=0x7fffbf67eff0) at widgets/qframe.cpp:557
#44 0x00007f96f68ae89b in QAbstractItemView::viewportEvent (this=0x22e79f0, event=0x7fffbf67eff0) at itemviews/qabstractitemview.cpp:1644
#45 0x00007f96f68f64b5 in QTreeView::viewportEvent (this=0x22e79f0, event=0x7fffbf67eff0) at itemviews/qtreeview.cpp:1257
#46 0x00007f96f598f028 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x22e98a0, event=0x7fffbf67eff0) at kernel/qcoreapplication.cpp:986
#47 0x00007f96f638985f in notify_helper (e=0x7fffbf67eff0, receiver=0x22e98a0, this=0x1c841b0) at kernel/qapplication.cpp:4555
#48 QApplicationPrivate::notify_helper (this=0x1c841b0, receiver=0x22e98a0, e=0x7fffbf67eff0) at kernel/qapplication.cpp:4531
#49 0x00007f96f638ebcd in QApplication::notify (this=<optimized out>, receiver=0x22e98a0, e=0x7fffbf67eff0) at kernel/qapplication.cpp:4181
#50 0x00007f96f70c39e6 in KApplication::notify (this=0x7fffbf67fca0, receiver=0x22e98a0, event=0x7fffbf67eff0) at ../../kdeui/kernel/kapplication.cpp:311
#51 0x00007f96f598ee9c in QCoreApplication::notifyInternal (this=0x7fffbf67fca0, receiver=0x22e98a0, event=0x7fffbf67eff0) at kernel/qcoreapplication.cpp:876
#52 0x00007f96f6409c58 in sendSpontaneousEvent (event=0x7fffbf67eff0, receiver=0x22e98a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#53 QETWidget::translateMouseEvent (this=<optimized out>, event=<optimized out>) at kernel/qapplication_x11.cpp:4622
#54 0x00007f96f6408bae in QApplication::x11ProcessEvent (this=0x7fffbf67fca0, event=0x7fffbf67f890) at kernel/qapplication_x11.cpp:3732
#55 0x00007f96f64320d2 in x11EventSourceDispatch (s=0x1c91e00, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#56 0x00007f96ef50ed53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f96ef50f0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007f96ef50f164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007f96f59be3bf in QEventDispatcherGlib::processEvents (this=0x1c4ec10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#60 0x00007f96f6431d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#61 0x00007f96f598dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#62 0x00007f96f598ded7 in QEventLoop::exec (this=0x7fffbf67fc30, flags=...) at kernel/qeventloop.cpp:204
#63 0x00007f96f5992f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#64 0x0000000000403629 in main (argc=1, argv=0x7fffbf6802c8) at ../../../kontact/src/main.cpp:218

Possible duplicates by query: bug 302242, bug 297823.

Reported using DrKonqi