Bug 343924

Application: kontact (4.14.3)
KDE Platform Version: 4.14.3 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.17.8-gentoo-r1 x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
- What I was doing when the application crashed:

I moved an IMAP Folder containing several subfolders from one location into another subfolder. Kontact with KMail crashes 4.14.3 instantly.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f39301bd7c0 (LWP 6963))]

Thread 3 (Thread 0x7f3916844700 (LWP 6977)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f392affa60a in WTF::TCMalloc_PageHeap::scavengerThread (this=<optimized out>) at /var/tmp/portage/dev-qt/qtwebkit-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:2495
#2  0x00007f392affa649 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /var/tmp/portage/dev-qt/qtwebkit-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/JavaScriptCore/wtf/FastMalloc.cpp:1618
#3  0x00007f3927fe1224 in start_thread (arg=0x7f3916844700) at pthread_create.c:310
#4  0x00007f392d74c93d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f3915f43700 (LWP 6979)):
#0  0x00007f392d73fe9d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f39271fa220 in read (__nbytes=16, __buf=0x7f3915f42c20, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0xb763c0) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gwakeup.c:210
#3  0x00007f39271b9424 in g_main_context_check (context=context@entry=0x7f39100009a0, max_priority=2147483647, fds=fds@entry=0x7f39100013e0, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3579
#4  0x00007f39271b988b in g_main_context_iterate (context=context@entry=0x7f39100009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3778
#5  0x00007f39271b99fc in g_main_context_iteration (context=0x7f39100009a0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3842
#6  0x00007f392eb437be in QEventDispatcherGlib::processEvents (this=0x7f39100008c0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:452
#7  0x00007f392eb1571f in QEventLoop::processEvents (this=this@entry=0x7f3915f42e20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#8  0x00007f392eb15a15 in QEventLoop::exec (this=this@entry=0x7f3915f42e20, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#9  0x00007f392ea128ef in QThread::exec (this=<optimized out>) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread.cpp:538
#10 0x00007f392ea14fcf in QThreadPrivate::start (arg=0xbba4b0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/thread/qthread_unix.cpp:349
#11 0x00007f3927fe1224 in start_thread (arg=0x7f3915f43700) at pthread_create.c:310
#12 0x00007f392d74c93d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f39301bd7c0 (LWP 6963)):
[KCrash Handler]
#6  Akonadi::Entity::parentCollection (this=0x0) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/entity.cpp:189
#7  0x00007f392c72638a in PasteHelperJob::PasteHelperJob (this=0x4b14cc0, action=<optimized out>, items=..., collections=..., destination=..., parent=<optimized out>) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/pastehelper.cpp:100
#8  0x00007f392c726858 in Akonadi::PasteHelper::pasteUriList (mimeData=mimeData@entry=0x461b340, destination=..., action=action@entry=Qt::MoveAction, session=0xf19670) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/pastehelper.cpp:338
#9  0x00007f392c6cc83c in Akonadi::EntityTreeModel::dropMimeData (this=0x1065920, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/entitytreemodel.cpp:578
#10 0x00007f392e4252c7 in QSortFilterProxyModel::dropMimeData (this=this@entry=0xeab390, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qsortfilterproxymodel.cpp:1833
#11 0x00007f392f5754a8 in KIdentityProxyModel::dropMimeData (this=this@entry=0x11e2640, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/kde-base/kdelibs-4.14.3-r1/work/kdelibs-4.14.3/kdeui/itemviews/kidentityproxymodel.cpp:186
#12 0x00007f392f5754a8 in KIdentityProxyModel::dropMimeData (this=0x11ff2a0, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/kde-base/kdelibs-4.14.3-r1/work/kdelibs-4.14.3/kdeui/itemviews/kidentityproxymodel.cpp:186
#13 0x00007f392e4252c7 in QSortFilterProxyModel::dropMimeData (this=0x11f4330, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qsortfilterproxymodel.cpp:1833
#14 0x00007f392e4252c7 in QSortFilterProxyModel::dropMimeData (this=this@entry=0x121f430, data=data@entry=0x461b340, action=action@entry=Qt::MoveAction, row=row@entry=-1, column=column@entry=-1, parent=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qsortfilterproxymodel.cpp:1833
#15 0x00007f392c6c5a67 in Akonadi::EntityOrderProxyModel::dropMimeData (this=0x121f430, data=0x461b340, action=Qt::MoveAction, row=-1, column=-1, parent=...) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/entityorderproxymodel.cpp:124
#16 0x00007f392e3a634e in QAbstractItemView::dropEvent (this=this@entry=0x121ea70, event=event@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qabstractitemview.cpp:2006
#17 0x00007f392c6df491 in Akonadi::EntityTreeView::dropEvent (this=0x121ea70, event=0x7fff608e0340) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/entitytreeview.cpp:260
#18 0x00007f392df23c2a in QWidget::event (this=this@entry=0x121ea70, event=event@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qwidget.cpp:8590
#19 0x00007f392e2a166e in QFrame::event (this=0x121ea70, e=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/widgets/qframe.cpp:557
#20 0x00007f392e3b0d33 in QAbstractItemView::viewportEvent (this=this@entry=0x121ea70, event=event@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qabstractitemview.cpp:1644
#21 0x00007f392e3ef8c0 in QTreeView::viewportEvent (this=0x121ea70, event=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qtreeview.cpp:1252
#22 0x00007f392eb16cc6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0xbadc70, receiver=receiver@entry=0x12050e0, event=event@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:1063
#23 0x00007f392ded4b2c in QApplicationPrivate::notify_helper (this=this@entry=0xbadc70, receiver=receiver@entry=0x12050e0, e=e@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4561
#24 0x00007f392dedbed6 in QApplication::notify (this=this@entry=0x7fff608e2430, receiver=receiver@entry=0x12050e0, e=e@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4351
#25 0x00007f392f5b614a in KApplication::notify (this=0x7fff608e2430, receiver=0x12050e0, event=0x7fff608e0340) at /var/tmp/portage/kde-base/kdelibs-4.14.3-r1/work/kdelibs-4.14.3/kdeui/kernel/kapplication.cpp:311
#26 0x00007f392eb16b5d in QCoreApplication::notifyInternal (this=0x7fff608e2430, receiver=0x12050e0, event=event@entry=0x7fff608e0340) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:953
#27 0x00007f392df594b1 in sendEvent (event=0x7fff608e0340, receiver=<optimized out>) at ../../include/QtCore/../../../qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.h:231
#28 QX11Data::xdndHandleDrop (this=<optimized out>, xe=xe@entry=0x7fff608e0460, passive=passive@entry=false) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qdnd_x11.cpp:1181
#29 0x00007f392df59845 in QDragManager::drop (this=this@entry=0x2497810) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qdnd_x11.cpp:1761
#30 0x00007f392df5aa60 in QDragManager::eventFilter (this=0x2497810, o=<optimized out>, e=<optimized out>) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qdnd_x11.cpp:1310
#31 0x00007f392eb16c32 in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=this@entry=0xbadc70, receiver=receiver@entry=0x4b2d8f0, event=event@entry=0x7fff608e08f0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:1044
#32 0x00007f392ded4ad8 in QApplicationPrivate::notify_helper (this=this@entry=0xbadc70, receiver=receiver@entry=0x4b2d8f0, e=e@entry=0x7fff608e08f0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4540
#33 0x00007f392dedb12a in QApplication::notify (this=this@entry=0x7fff608e2430, receiver=receiver@entry=0x4b2d8f0, e=e@entry=0x7fff608e08f0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4108
#34 0x00007f392f5b614a in KApplication::notify (this=0x7fff608e2430, receiver=0x4b2d8f0, event=0x7fff608e08f0) at /var/tmp/portage/kde-base/kdelibs-4.14.3-r1/work/kdelibs-4.14.3/kdeui/kernel/kapplication.cpp:311
#35 0x00007f392eb16b5d in QCoreApplication::notifyInternal (this=0x7fff608e2430, receiver=receiver@entry=0x4b2d8f0, event=event@entry=0x7fff608e08f0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:953
#36 0x00007f392deda923 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../../qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.h:231
#37 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x4b2d8f0, event=event@entry=0x7fff608e08f0, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x4b2d8f0, buttonDown=buttonDown@entry=0x7f392e997318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:3173
#38 0x00007f392df4ba1b in QETWidget::translateMouseEvent (this=this@entry=0x4b2d8f0, event=event@entry=0x7fff608e0c70) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication_x11.cpp:4519
#39 0x00007f392df4a48c in QApplication::x11ProcessEvent (this=0x7fff608e2430, event=event@entry=0x7fff608e0c70) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication_x11.cpp:3642
#40 0x00007f392df70dd2 in x11EventSourceDispatch (s=0xbae130, callback=0x0, user_data=0x0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qguieventdispatcher_glib.cpp:146
#41 0x00007f39271b9714 in g_main_dispatch (context=0xbadfc0) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3111
#42 g_main_context_dispatch (context=context@entry=0xbadfc0) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3710
#43 0x00007f39271b9958 in g_main_context_iterate (context=context@entry=0xbadfc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3781
#44 0x00007f39271b99fc in g_main_context_iteration (context=0xbadfc0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3842
#45 0x00007f392eb4379e in QEventDispatcherGlib::processEvents (this=0xb6abe0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:450
#46 0x00007f392df70e86 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007f392eb1571f in QEventLoop::processEvents (this=this@entry=0x4aec7e0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#48 0x00007f392eb15a15 in QEventLoop::exec (this=this@entry=0x4aec7e0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#49 0x00007f392df5ad8d in QDragManager::drag (this=0x2497810, o=o@entry=0x47540f0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qdnd_x11.cpp:2028
#50 0x00007f392dee58ea in QDrag::exec (this=this@entry=0x47540f0, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qdrag.cpp:284
#51 0x00007f392c7ba2c4 in Akonadi::DragDropManager::startDrag (this=<optimized out>, supportedActions=...) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/dragdropmanager.cpp:312
#52 0x00007f392c6ddb39 in Akonadi::EntityTreeView::startDrag (this=this@entry=0x121ea70, supportedActions=...) at /var/tmp/portage/kde-base/kdepimlibs-4.14.3/work/kdepimlibs-4.14.3/akonadi/entitytreeview.cpp:302
#53 0x00007f392e3b0299 in QAbstractItemView::mouseMoveEvent (this=0x121ea70, event=<optimized out>) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qabstractitemview.cpp:1725
#54 0x00007f392df24005 in QWidget::event (this=this@entry=0x121ea70, event=event@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qwidget.cpp:8374
#55 0x00007f392e2a166e in QFrame::event (this=0x121ea70, e=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/widgets/qframe.cpp:557
#56 0x00007f392e3b0d33 in QAbstractItemView::viewportEvent (this=this@entry=0x121ea70, event=event@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qabstractitemview.cpp:1644
#57 0x00007f392e3ef8c0 in QTreeView::viewportEvent (this=0x121ea70, event=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/itemviews/qtreeview.cpp:1252
#58 0x00007f392eb16cc6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0xbadc70, receiver=receiver@entry=0x12050e0, event=event@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:1063
#59 0x00007f392ded4b2c in QApplicationPrivate::notify_helper (this=this@entry=0xbadc70, receiver=receiver@entry=0x12050e0, e=e@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4561
#60 0x00007f392dedb12a in QApplication::notify (this=this@entry=0x7fff608e2430, receiver=receiver@entry=0x12050e0, e=e@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:4108
#61 0x00007f392f5b614a in KApplication::notify (this=0x7fff608e2430, receiver=0x12050e0, event=0x7fff608e1be0) at /var/tmp/portage/kde-base/kdelibs-4.14.3-r1/work/kdelibs-4.14.3/kdeui/kernel/kapplication.cpp:311
#62 0x00007f392eb16b5d in QCoreApplication::notifyInternal (this=0x7fff608e2430, receiver=receiver@entry=0x12050e0, event=event@entry=0x7fff608e1be0) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:953
#63 0x00007f392deda923 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../../qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.h:231
#64 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x12050e0, event=event@entry=0x7fff608e1be0, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x12050e0, buttonDown=buttonDown@entry=0x7f392e997318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:3173
#65 0x00007f392df4ba1b in QETWidget::translateMouseEvent (this=this@entry=0x12050e0, event=event@entry=0x7fff608e1f60) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication_x11.cpp:4519
#66 0x00007f392df4a48c in QApplication::x11ProcessEvent (this=0x7fff608e2430, event=event@entry=0x7fff608e1f60) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication_x11.cpp:3642
#67 0x00007f392df70dd2 in x11EventSourceDispatch (s=0xbae130, callback=0x0, user_data=0x0) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qguieventdispatcher_glib.cpp:146
#68 0x00007f39271b9714 in g_main_dispatch (context=0xbadfc0) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3111
#69 g_main_context_dispatch (context=context@entry=0xbadfc0) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3710
#70 0x00007f39271b9958 in g_main_context_iterate (context=context@entry=0xbadfc0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3781
#71 0x00007f39271b99fc in g_main_context_iteration (context=0xbadfc0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.42.1/work/glib-2.42.1/glib/gmain.c:3842
#72 0x00007f392eb4379e in QEventDispatcherGlib::processEvents (this=0xb6abe0, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventdispatcher_glib.cpp:450
#73 0x00007f392df70e86 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qguieventdispatcher_glib.cpp:204
#74 0x00007f392eb1571f in QEventLoop::processEvents (this=this@entry=0x7fff608e2330, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:149
#75 0x00007f392eb15a15 in QEventLoop::exec (this=this@entry=0x7fff608e2330, flags=...) at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qeventloop.cpp:204
#76 0x00007f392eb1acb9 in QCoreApplication::exec () at /var/tmp/portage/dev-qt/qtcore-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/corelib/kernel/qcoreapplication.cpp:1225
#77 0x00007f392ded31bc in QApplication::exec () at /var/tmp/portage/dev-qt/qtgui-4.8.6-r1/work/qt-everywhere-opensource-src-4.8.6/src/gui/kernel/qapplication.cpp:3823
#78 0x00000000004035f2 in main (argc=1, argv=0x7fff608e2578) at /var/tmp/portage/kde-base/kontact-4.14.3/work/kontact-4.14.3/kontact/src/main.cpp:219

Possible duplicates by query: bug 340054.

Report to https://bugs.kde.org/

Reproducible: Didn't try