Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources


I'm getting the following crash immediately upon opening certain IMAP folder with kmail. This reproduces reliably.


KMail (kmail), signal SIGABRT

Thread 1 (Thread 0xb39466c0 (LWP 4787)):
[KCrash Handler]
#6  0xb7f72410 in __kernel_vsyscall ()
#7  0xb5956085 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5957a01 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb68291e8 in qt_message_output (msgType=QtFatalMsg, buf=0xbfbb3a60 "ASSERT: \"d->viewItems.at(item).level == childLevel\" in file itemviews/qtreeview.cpp, line 2382") at global/qglobal.cpp:2058
#10 0xb682926d in qFatal (msg=0xb69a6f88 "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2260
#11 0xb68296e9 in qt_assert (assertion=0xb6431afc "d->viewItems.at(item).level == childLevel", file=0xb64318f1 "itemviews/qtreeview.cpp", line=2382) at global/qglobal.cpp:1828
#12 0xb62ccdfa in QTreeView::rowsInserted (this=0x855b500, parent=@0xbfbb5d64, start=3, end=3) at itemviews/qtreeview.cpp:2382
#13 0xb62931ae in QAbstractItemView::qt_metacall (this=0x855b500, _c=QMetaObject::InvokeMetaMethod, _id=17, _a=0xbfbb5d24) at .moc/debug-shared/moc_qabstractitemview.cpp:224
#14 0xb62d5834 in QTreeView::qt_metacall (this=0x855b500, _c=QMetaObject::InvokeMetaMethod, _id=48, _a=0xbfbb5d24) at .moc/debug-shared/moc_qtreeview.cpp:121
#15 0xb721c07a in KMail::MessageListView::Core::View::qt_metacall (this=0x855b500, _c=QMetaObject::InvokeMetaMethod, _id=48, _a=0xbfbb5d24)
    at /home/ghost/Work/KDevelop4/build/kdepim/kmail/moc_view.cpp:74
#16 0xb695b021 in QMetaObject::activate (sender=0x8572db0, from_signal_index=9, to_signal_index=9, argv=0xbfbb5d24) at kernel/qobject.cpp:3010
#17 0xb695b5ab in QMetaObject::activate (sender=0x8572db0, m=0xb6a5d6b8, local_signal_index=5, argv=0xbfbb5d24) at kernel/qobject.cpp:3080
#18 0xb69a4426 in QAbstractItemModel::rowsInserted (this=0x8572db0, _t1=@0xbfbb5d64, _t2=3, _t3=3) at .moc/debug-shared/moc_qabstractitemmodel.cpp:157
#19 0xb6937e1d in QAbstractItemModel::endInsertRows (this=0x8572db0) at kernel/qabstractitemmodel.cpp:2089
#20 0xb7718b36 in KMail::MessageListView::Core::Item::insertChildItem<KMail::MessageListView::Core::ItemDateComparator, false> (this=0x8f65580, model=0x8572db0, child=0x8efb050)
    at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/item.h:602
#21 0xb770aeec in KMail::MessageListView::Core::Model::attachMessageToParent (this=0x8572db0, pParent=0x8f65580, mi=0x8efb050)
    at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:2085
#22 0xb770b4bb in KMail::MessageListView::Core::Model::attachMessageToGroupHeader (this=0x8572db0, mi=0x8efb050) at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:1406
#23 0xb770cebc in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJobPass4 (this=0x8572db0, job=0x89a8088, tStart=@0xbfbb6130)
    at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:2368
#24 0xb77106c6 in KMail::MessageListView::Core::Model::viewItemJobStepInternalForJob (this=0x8572db0, job=0x89a8088, tStart=@0xbfbb6130)
    at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:3429
#25 0xb77112ab in KMail::MessageListView::Core::Model::viewItemJobStepInternal (this=0x8572db0) at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:3503
#26 0xb7712339 in KMail::MessageListView::Core::Model::viewItemJobStep (this=0x8572db0) at /home/ghost/Work/KDevelop4/src/kdepim/kmail/messagelistview/core/model.cpp:3662
#27 0xb721c676 in KMail::MessageListView::Core::Model::qt_metacall (this=0x8572db0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfbb634c)
    at /home/ghost/Work/KDevelop4/build/kdepim/kmail/moc_model.cpp:75
#28 0xb695b021 in QMetaObject::activate (sender=0x85653e8, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3010
#29 0xb695b5ab in QMetaObject::activate (sender=0x85653e8, m=0xb6a5dac4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3080
#30 0xb69a578d in QTimer::timeout (this=0x85653e8) at .moc/debug-shared/moc_qtimer.cpp:126
#31 0xb6966472 in QTimer::timerEvent (this=0x85653e8, e=0xbfbb6884) at kernel/qtimer.cpp:263
#32 0xb6958c1e in QObject::event (this=0x85653e8, e=0xbfbb6884) at kernel/qobject.cpp:1105
#33 0xb5cf2055 in QApplicationPrivate::notify_helper (this=0x806e570, receiver=0x85653e8, e=0xbfbb6884) at kernel/qapplication.cpp:3766
#34 0xb5cf233b in QApplication::notify (this=0xbfbb6ba8, receiver=0x85653e8, e=0xbfbb6884) at kernel/qapplication.cpp:3360
#35 0xb7db101d in KApplication::notify (this=0xbfbb6ba8, receiver=0x85653e8, event=0xbfbb6884) at /home/ghost/Work/KDevelop4/src/kdelibs/kdeui/kernel/kapplication.cpp:307
#36 0xb694321d in QCoreApplication::notifyInternal (this=0xbfbb6ba8, receiver=0x85653e8, event=0xbfbb6884) at kernel/qcoreapplication.cpp:587
#37 0xb69477ad in QCoreApplication::sendEvent (receiver=0x85653e8, event=0xbfbb6884) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#38 0xb697bed1 in QTimerInfoList::activateTimers (this=0x80784ac) at kernel/qeventdispatcher_unix.cpp:563
#39 0xb69795e4 in timerSourceDispatch (source=0x8078478) at kernel/qeventdispatcher_glib.cpp:166
#40 0xb3f62cc6 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#41 0xb3f66083 in ?? () from /usr/lib/libglib-2.0.so.0
#42 0xb3f6663e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#43 0xb697875c in QEventDispatcherGlib::processEvents (this=0x8063658, flags=@0xbfbb69f4) at kernel/qeventdispatcher_glib.cpp:325
#44 0xb5dadc0c in QGuiEventDispatcherGlib::processEvents (this=0x8063658, flags=@0xbfbb6a24) at kernel/qguieventdispatcher_glib.cpp:204
#45 0xb693fa9a in QEventLoop::processEvents (this=0xbfbb6aac, flags=@0xbfbb6a64) at kernel/qeventloop.cpp:149
#46 0xb693fcd9 in QEventLoop::exec (this=0xbfbb6aac, flags=@0xbfbb6ab4) at kernel/qeventloop.cpp:200
#47 0xb6943b54 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#48 0xb5cf1d6e in QApplication::exec () at kernel/qapplication.cpp:3298
#49 0x0804a89e in main (argc=) at /home/ghost/Work/KDevelop4/src/kdepim/kmail/main.cpp:146

Prior to the crash, I see this output:

kmail(4787) KMail::MessageListView::StorageModel::releaseMessage: Trying to release a message at row  67  that no longer exists in the folder
kmail(4787) KMail::MessageListView::Core::Model::findMessageParent: Circular In-Reply-To reference loop detected in the message tree

kmail(4787) KMail::MessageListView::Core::Model::findMessageParent: Circular In-Reply-To reference loop detected in the message tree

The last message is repeated many times.

I can poke with debugger if instructed where exactly in this backtrace to poke, and on what variables.