Application: kontact (4.10)
KDE Platform Version: 4.10.00 "release 1"
Qt Version: 4.8.4
Operating System: Linux 3.7.10-1.1-desktop x86_64
Distribution: "openSUSE 12.3 (x86_64)"

-- Information about the crash:
The kmail module in Kontact wasn't showing all the mail resources.  I clicked on one that was a duplicate to expand that resource in the list-tree and the program crashed.
openSUSE 12.3 Linux 3.7.10-1.1-desktop, KDE 4.10.0 "release 1"

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff9ea0b3780 (LWP 16262))]

Thread 5 (Thread 0x7ff9d0c18700 (LWP 16263)):
#0  0x00007ff9e1eb3964 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff9e68a07c7 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/libQtWebKit.so.4
#2  0x00007ff9e68a07f9 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/libQtWebKit.so.4
#3  0x00007ff9e1eafe0f in start_thread () from /lib64/libpthread.so.0
#4  0x00007ff9e76067dd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7ff9d0317700 (LWP 16264)):
#0  0x00007ff9e0ee06dd in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007ff9e0ee0e29 in g_private_get () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ff9e0ec7820 in g_thread_self () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ff9e0ea3bb5 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007ff9e8a351f6 in QEventDispatcherGlib::processEvents (this=0x7ff9c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007ff9e8a059ef in QEventLoop::processEvents (this=this@entry=0x7ff9d0316e00, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff9e8a05c78 in QEventLoop::exec (this=0x7ff9d0316e00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff9e89080f0 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x00007ff9e890b0cc in QThreadPrivate::start (arg=0x20f7200) at thread/qthread_unix.cpp:338
#9  0x00007ff9e1eafe0f in start_thread () from /lib64/libpthread.so.0
#10 0x00007ff9e76067dd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7ff97bdee700 (LWP 24569)):
#0  0x00007ff9e1eb3d11 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff9e890b587 in wait (time=30000, this=0x277fa60) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2780248, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff9e88fed8f in QThreadPoolThread::run (this=0x2785990) at concurrent/qthreadpool.cpp:141
#4  0x00007ff9e890b0cc in QThreadPrivate::start (arg=0x2785990) at thread/qthread_unix.cpp:338
#5  0x00007ff9e1eafe0f in start_thread () from /lib64/libpthread.so.0
#6  0x00007ff9e76067dd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff9825bf700 (LWP 24570)):
#0  0x00007ff9e1eb3d11 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff9e890b587 in wait (time=30000, this=0xa9683e0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0xa96ba18, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff9e88fed8f in QThreadPoolThread::run (this=0xa970ca0) at concurrent/qthreadpool.cpp:141
#4  0x00007ff9e890b0cc in QThreadPrivate::start (arg=0xa970ca0) at thread/qthread_unix.cpp:338
#5  0x00007ff9e1eafe0f in start_thread () from /lib64/libpthread.so.0
#6  0x00007ff9e76067dd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff9ea0b3780 (LWP 16262)):
[KCrash Handler]
#6  QSortFilterProxyModelPrivate::updateChildrenMapping (this=this@entry=0x2518780, source_parent=..., parent_mapping=parent_mapping@entry=0x2ba2b50, orient=orient@entry=Qt::Vertical, start=start@entry=1, end=end@entry=1, delta_item_count=delta_item_count@entry=1, remove=remove@entry=true) at itemviews/qsortfilterproxymodel.cpp:948
#7  0x00007ff9e83398c0 in source_items_removed (orient=Qt::Vertical, end=1, start=1, source_parent=..., this=<optimized out>) at itemviews/qsortfilterproxymodel.cpp:890
#8  QSortFilterProxyModelPrivate::source_items_removed (this=0x2518780, source_parent=..., start=1, end=<optimized out>, orient=Qt::Vertical) at itemviews/qsortfilterproxymodel.cpp:848
#9  0x00007ff9e8a1c1af in QMetaObject::activate (sender=0x2493480, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff26fe9f30) at kernel/qobject.cpp:3548
#10 0x00007ff9e8a66924 in QAbstractItemModel::rowsRemoved (this=<optimized out>, _t1=..., _t2=1, _t3=1) at .moc/release-shared/moc_qabstractitemmodel.cpp:211
#11 0x00007ff9e8a0067d in QAbstractItemModel::endRemoveRows (this=0x2493480) at kernel/qabstractitemmodel.cpp:2487
#12 0x00007ff9e833c88a in QSortFilterProxyModelPrivate::remove_source_items (this=this@entry=0x2516b50, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., orient=orient@entry=Qt::Vertical, emit_signal=emit_signal@entry=true) at itemviews/qsortfilterproxymodel.cpp:539
#13 0x00007ff9e833d121 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x2516b50, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1161
#14 0x00007ff9e8a0ebb7 in QMetaMethod::invoke (this=this@entry=0x7fff26fea410, object=object@entry=0x2493480, connectionType=connectionType@entry=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#15 0x00007ff9e8a10f8c in QMetaObject::invokeMethod (obj=0x2493480, member=<optimized out>, type=Qt::DirectConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#16 0x00007ff9e9430213 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::DirectConnection, member=0x7ff9e95c866b "_q_sourceDataChanged", obj=0x2493480) at /usr/include/QtCore/qobjectdefs.h:418
#17 invokeDataChanged (bottomRight=..., topLeft=..., this=<optimized out>) at /usr/src/debug/kdelibs-4.10.0/kdeui/itemviews/krecursivefilterproxymodel.cpp:55
#18 KRecursiveFilterProxyModelPrivate::sourceDataChanged (this=0x23a3a50, source_top_left=..., source_bottom_right=...) at /usr/src/debug/kdelibs-4.10.0/kdeui/itemviews/krecursivefilterproxymodel.cpp:131
#19 0x00007ff9e8a1c1af in QMetaObject::activate (sender=0x251b040, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff26fea9b0) at kernel/qobject.cpp:3548
#20 0x00007ff9e8a66747 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#21 0x00007ff9e942e4a7 in KIdentityProxyModelPrivate::_k_sourceDataChanged (this=<optimized out>, topLeft=..., bottomRight=...) at /usr/src/debug/kdelibs-4.10.0/kdeui/itemviews/kidentityproxymodel.cpp:573
#22 0x00007ff9e8a1c1af in QMetaObject::activate (sender=0x25165e0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff26feab60) at kernel/qobject.cpp:3548
#23 0x00007ff9e8a66747 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#24 0x00007ff9e942e4a7 in KIdentityProxyModelPrivate::_k_sourceDataChanged (this=<optimized out>, topLeft=..., bottomRight=...) at /usr/src/debug/kdelibs-4.10.0/kdeui/itemviews/kidentityproxymodel.cpp:573
#25 0x00007ff9e8a1c1af in QMetaObject::activate (sender=0x23a5320, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff26fead10) at kernel/qobject.cpp:3548
#26 0x00007ff9e8a66747 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#27 0x00007ff9e833ccca in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x1f26350, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1210
#28 0x00007ff9e8a1c1af in QMetaObject::activate (sender=0x23ce710, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff26feafb0) at kernel/qobject.cpp:3548
#29 0x00007ff9e8a66747 in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#30 0x00007ff9e42ccbbb in Akonadi::EntityTreeModelPrivate::changeFetchState (this=<optimized out>, parent=...) at /usr/src/debug/kdepimlibs-4.10.0/akonadi/entitytreemodel_p.cpp:235
#31 0x00007ff9e8a1b68e in QObject::event (this=0x23ce710, e=<optimized out>) at kernel/qobject.cpp:1203
#32 0x00007ff9e7db086c in QApplicationPrivate::notify_helper (this=this@entry=0x1f42650, receiver=receiver@entry=0x23ce710, e=e@entry=0xe405630) at kernel/qapplication.cpp:4562
#33 0x00007ff9e7db4ceb in QApplication::notify (this=0x7fff26feba80, receiver=0x23ce710, e=0xe405630) at kernel/qapplication.cpp:4423
#34 0x00007ff9e946bcb6 in KApplication::notify (this=0x7fff26feba80, receiver=0x23ce710, event=0xe405630) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#35 0x00007ff9e8a06c9e in QCoreApplication::notifyInternal (this=0x7fff26feba80, receiver=receiver@entry=0x23ce710, event=event@entry=0xe405630) at kernel/qcoreapplication.cpp:946
#36 0x00007ff9e8a0a601 in sendEvent (event=0xe405630, receiver=0x23ce710) at kernel/qcoreapplication.h:231
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1f01670) at kernel/qcoreapplication.cpp:1570
#38 0x00007ff9e8a35043 in sendPostedEvents () at kernel/qcoreapplication.h:236
#39 postEventSourceDispatch (s=0x1f36f00) at kernel/qeventdispatcher_glib.cpp:279
#40 0x00007ff9e0ea37d5 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#41 0x00007ff9e0ea3b08 in ?? () from /usr/lib64/libglib-2.0.so.0
#42 0x00007ff9e0ea3bc4 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#43 0x00007ff9e8a351d6 in QEventDispatcherGlib::processEvents (this=0x1f06ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#44 0x00007ff9e7e50c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007ff9e8a059ef in QEventLoop::processEvents (this=this@entry=0x7fff26feb8f0, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007ff9e8a05c78 in QEventLoop::exec (this=0x7fff26feb8f0, flags=...) at kernel/qeventloop.cpp:204
#47 0x00007ff9e8a0a918 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#48 0x0000000000403679 in main (argc=1, argv=0x7fff26febbc8) at /usr/src/debug/kdepim-4.10.0/kontact/src/main.cpp:219

Possible duplicates by query: bug 311779, bug 309147, bug 306051, bug 304219, bug 304109.

Reported using DrKonqi