Application: calligrasheets (2.9.11)
KDE Platform Version: 4.14.24
Qt Version: 4.8.7
Operating System: Linux 4.7.7-200.fc24.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:  Inserted a new column on the left side (column "A") and reduced the column width down to about 2 characters wide when the app crashed.

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]
#6  0x0000000000000021 in ?? ()
#7  0x00007fa476639652 in Calligra::Sheets::StyleStorage::invalidateCache() () from /lib64/libcalligrasheetsodf.so.14
#8  0x00007fa4765d46d8 in Calligra::Sheets::Map::handleDamages(QList<Calligra::Sheets::Damage*> const&) () from /lib64/libcalligrasheetsodf.so.14
#9  0x00007fa490943090 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#10 0x00007fa4765cfea2 in Calligra::Sheets::Map::damagesFlushed(QList<Calligra::Sheets::Damage*> const&) () from /lib64/libcalligrasheetsodf.so.14
#11 0x00007fa4765cff3c in Calligra::Sheets::Map::flushDamages() () from /lib64/libcalligrasheetsodf.so.14
#12 0x00007fa490948db1 in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#13 0x00007fa49185aedc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#14 0x00007fa491861ddc in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#15 0x00007fa495b598c5 in KoApplication::notify(QObject*, QEvent*) () from /lib64/libkomain.so.14
#16 0x00007fa49092eeed in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#17 0x00007fa490932556 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#18 0x00007fa49095f2ee in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#19 0x00007fa48a8d96ba in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#20 0x00007fa48a8d9a70 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#21 0x00007fa48a8d9b1c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#22 0x00007fa49095f45e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#23 0x00007fa4919035b6 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#24 0x00007fa49092d7bf in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#25 0x00007fa49092db25 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#26 0x00007fa490933779 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#27 0x00007fa495e0f5b5 in kdemain () from /lib64/libkdeinit4_calligrasheets.so
#28 0x00007fa48f931731 in __libc_start_main () from /lib64/libc.so.6
#29 0x000056106c21ca09 in _start ()

Reported using DrKonqi