Application: calligrasheets (2.8.7)
KDE Platform Version: 4.14.4
Qt Version: 4.8.6
Operating System: Linux 3.18.7-200.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
- What I was doing when the application crashed:
Every time i opens a document or when i tried to creat a new document Sheets get crashed making it unusable

The crash can be reproduced every time.

-- Backtrace:
Application: Calligra Sheets (calligrasheets), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#5  0x00007f89603e5db0 in QWidget::mapFromParent(QPoint const&) const () from /lib64/libQtGui.so.4
#6  0x00007f89603e5e13 in QWidget::mapFrom(QWidget*, QPoint const&) const () from /lib64/libQtGui.so.4
#7  0x00007f8948fccfc2 in Breeze::Style::eventFilterScrollArea(QWidget*, QEvent*) () from /usr/lib64/kde4/plugins/styles/breeze.so
#8  0x00007f895f4b2876 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#9  0x00007f89603a5edc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#10 0x00007f89603acabf in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#11 0x00007f89643be877 in KoApplication::notify(QObject*, QEvent*) () from /lib64/libkomain.so.13
#12 0x00007f895f4b270d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#13 0x00007f89603ac11f in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQtGui.so.4
#14 0x00007f8960422532 in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#15 0x00007f8960420f2c in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#16 0x00007f8960448fb4 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#17 0x00007f8958cd2aeb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#18 0x00007f8958cd2e88 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#19 0x00007f8958cd2f3c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#20 0x00007f895f4e1a1e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#21 0x00007f8960449136 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#22 0x00007f895f4b5eb1 in QCoreApplication::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#23 0x00007f89643f0309 in KoMainWindow::slotProgress(int) () from /lib64/libkomain.so.13
#24 0x00007f896249e256 in KoProgressUpdater::updateUi() () from /lib64/libkowidgetutils.so.13
#25 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#26 0x00007f895f4cb823 in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#27 0x00007f89603a5efc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#28 0x00007f89603ac958 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#29 0x00007f89643be877 in KoApplication::notify(QObject*, QEvent*) () from /lib64/libkomain.so.13
#30 0x00007f895f4b270d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#31 0x00007f895f4e406b in QTimerInfoList::activateTimers() () from /lib64/libQtCore.so.4
#32 0x00007f895f4e1051 in timerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#33 0x00007f8958cd2aeb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#34 0x00007f8958cd2e88 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#35 0x00007f8958cd2f3c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#36 0x00007f895f4e1a1e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#37 0x00007f8960449136 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#38 0x00007f895f4b5eb1 in QCoreApplication::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#39 0x00007f896249df6f in KoProgressUpdater::update() () from /lib64/libkowidgetutils.so.13
#40 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#41 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#42 0x00007f896249f371 in KoUpdater::sigProgress(int) () from /lib64/libkowidgetutils.so.13
#43 0x00007f89643c9ae3 in KoDocument::openFile() () from /lib64/libkomain.so.13
#44 0x00007f89643d0c79 in KoDocument::openUrlInternal(KUrl const&) () from /lib64/libkomain.so.13
#45 0x00007f89643d10c8 in KoDocument::openUrl(KUrl const&) () from /lib64/libkomain.so.13
#46 0x00007f8964464f1f in KoPart::openExistingFile(KUrl const&) () from /lib64/libkomain.so.13
#47 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#48 0x00007f896444a262 in KoOpenPane::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.54] () from /lib64/libkomain.so.13
#49 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#50 0x00007f8964447642 in KoDetailsPane::openUrl(KUrl const&) () from /lib64/libkomain.so.13
#51 0x00007f896444d55c in KoRecentDocumentsPane::openFile(QModelIndex const&) () from /lib64/libkomain.so.13
#52 0x00007f896444774d in KoDetailsPane::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.2] () from /lib64/libkomain.so.13
#53 0x00007f895f4c725c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#54 0x00007f89608c9fd5 in QAbstractItemView::doubleClicked(QModelIndex const&) () from /lib64/libQtGui.so.4
#55 0x00007f8960914033 in QTreeView::mouseDoubleClickEvent(QMouseEvent*) () from /lib64/libQtGui.so.4
#56 0x00007f89603f9c77 in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#57 0x00007f89607b831e in QFrame::event(QEvent*) () from /lib64/libQtGui.so.4
#58 0x00007f89608d3e43 in QAbstractItemView::viewportEvent(QEvent*) () from /lib64/libQtGui.so.4
#59 0x00007f8960916200 in QTreeView::viewportEvent(QEvent*) () from /lib64/libQtGui.so.4
#60 0x00007f895f4b2876 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#61 0x00007f89603a5edc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#62 0x00007f89603acabf in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#63 0x00007f89643be877 in KoApplication::notify(QObject*, QEvent*) () from /lib64/libkomain.so.13
#64 0x00007f895f4b270d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#65 0x00007f89603ac11f in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /lib64/libQtGui.so.4
#66 0x00007f8960422532 in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#67 0x00007f8960420f2c in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#68 0x00007f8960448fb4 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#69 0x00007f8958cd2aeb in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#70 0x00007f8958cd2e88 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#71 0x00007f8958cd2f3c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#72 0x00007f895f4e1a1e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#73 0x00007f8960449136 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#74 0x00007f895f4b1261 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#75 0x00007f895f4b15c5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#76 0x00007f895f4b6ca9 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#77 0x00007f89646b98e1 in kdemain () from /lib64/libkdeinit4_calligrasheets.so
#78 0x00007f895e545fe0 in __libc_start_main () from /lib64/libc.so.6
#79 0x00000000004008ee in _start ()

Reported using DrKonqi