Application: korganizer (4.14.10)
KDE Platform Version: 4.14.36
Qt Version: 4.8.7
Operating System: Linux 4.9.52 x86_64
Distribution (Platform): Slackware Packages

-- Information about the crash:
- What I was doing when the application crashed:
Closing KOrganizer with a TODO filter active.  The filter hides completed tasks 7 days after completion. (some completed tasks are being hidden, some are not, and there are un-completed tasks).
The filter works correctly, but if it is active KOrganizer crashes when closed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KOrganizer (korganizer), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f368b7e9b70 in QAbstractSlider::maximum() const () at /usr/lib64/qt/lib/libQtGui.so.4
#7  0x00007f368d4ed86d in  () at /usr/lib64/libkdeui.so.5
#8  0x00007f368c572e61 in QObject::event(QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#9  0x00007f368b439fac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#10 0x00007f368b440d04 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtGui.so.4
#11 0x00007f368d51c0aa in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#12 0x00007f368c559ffe in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/qt/lib/libQtCore.so.4
#13 0x00007f368c55ce92 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/qt/lib/libQtCore.so.4
#14 0x00007f368c58816e in  () at /usr/lib64/qt/lib/libQtCore.so.4
#15 0x00007f3681f86467 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#16 0x00007f3681f86678 in  () at /usr/lib64/libglib-2.0.so.0
#17 0x00007f3681f866fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#18 0x00007f368c5882d6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#19 0x00007f368b4dce87 in  () at /usr/lib64/qt/lib/libQtGui.so.4
#20 0x00007f368c5586e4 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#21 0x00007f368c5589f6 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/qt/lib/libQtCore.so.4
#22 0x00007f368c55e08c in QCoreApplication::exec() () at /usr/lib64/qt/lib/libQtCore.so.4
#23 0x0000000000408317 in  ()
#24 0x00007f368a59302a in __libc_start_main () at /lib64/libc.so.6
#25 0x00000000004087ca in _start ()

Reported using DrKonqi