Version:            (using KDE 4.2.2)

Korganizer was working fine yesterday, but when I started it up today, it would crash consistently at startup with the following backtrace:

#6  0xb7f63430 in __kernel_vsyscall ()
#7  0xb5e038a0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5e05268 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb60a7795 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb60a7872 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb60a7915 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb773da11 in KOTodoModel::TodoTreeNode::deleteMarked (this=0xa503b98) at /build/buildd/kdepim-4.2.2/korganizer/views/todoview/kotodomodel.cpp:113
#13 0xb773d84d in KOTodoModel::TodoTreeNode::deleteMarked (this=0xa502b88) at /build/buildd/kdepim-4.2.2/korganizer/views/todoview/kotodomodel.cpp:127
#14 0xb773b432 in KOTodoModel::reloadTodos (this=0x9c471b0) at /build/buildd/kdepim-4.2.2/korganizer/views/todoview/kotodomodel.cpp:127
#15 0xb7743120 in KOTodoView::updateView (this=0x9d26e38) at /build/buildd/kdepim-4.2.2/korganizer/views/todoview/kotodoview.cpp:356
#16 0xb776153e in CalendarView::updateView (this=0x9b1e580, start=@0x9e65c4c, end=@0x9e65c4c, updateTodos=true) at /build/buildd/kdepim-4.2.2/korganizer/calendarview.cpp:813
#17 0xb776289c in CalendarView::updateView (this=0x9b1e580) at /build/buildd/kdepim-4.2.2/korganizer/calendarview.cpp:824
#18 0xb7760f50 in CalendarView::resourcesChanged (this=0x9b1e580) at /build/buildd/kdepim-4.2.2/korganizer/calendarview.cpp:2408
#19 0xb777020a in CalendarView::qt_metacall (this=0x9b1e580, _c=QMetaObject::InvokeMetaMethod, _id=173, _a=0xbff62ad8) at /build/buildd/kdepim-4.2.2/obj-i486-linux-gnu/korganizer/calendarview.moc:568
#20 0xb61b4a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#21 0xb61b57e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#22 0xb7a07b37 in KCal::Calendar::calendarLoaded (this=0x9d8b518) at /build/buildd/kdepimlibs-4.2.2/obj-i486-linux-gnu/kcal/calendar.moc:96
#23 0xb7a6b9b5 in KCal::CalendarResources::load (this=0x9d8b518) at /build/buildd/kdepimlibs-4.2.2/kcal/calendarresources.cpp:293
#24 0x080532e5 in KOrganizerApp::processCalendar (this=0xbff637ac, url=@0xbff62c40) at /build/buildd/kdepim-4.2.2/korganizer/koapp.cpp:146
#25 0x08053732 in KOrganizerApp::newInstance (this=0xbff637ac) at /build/buildd/kdepim-4.2.2/korganizer/koapp.cpp:93
#26 0xb7d84816 in KUniqueApplicationAdaptor::newInstance (this=0x9ba1718, asn_id=@0x9b9a1d8, args=@0x9b9a0a8) at /build/buildd/kde4libs-4.2.2/kdeui/kernel/kuniqueapplication_p.h:77
#27 0xb7d82a0e in KUniqueApplicationAdaptor::qt_metacall (this=0x9ba1718, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbff62ec8)
    at /build/buildd/kde4libs-4.2.2/obj-i486-linux-gnu/kdeui/kuniqueapplication_p.moc:74
#28 0xb62a926e in ?? () from /usr/lib/libQtDBus.so.4
#29 0xb62aa4a7 in ?? () from /usr/lib/libQtDBus.so.4
#30 0xb62aa9b1 in ?? () from /usr/lib/libQtDBus.so.4
#31 0xb62aaeaa in ?? () from /usr/lib/libQtDBus.so.4
#32 0xb61af771 in QObject::event () from /usr/lib/libQtCore.so.4
#33 0xb619f7cb in QCoreApplication::event () from /usr/lib/libQtCore.so.4
#34 0xb6659206 in QApplication::event () from /usr/lib/libQtGui.so.4
#35 0xb66538ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#36 0xb665b72e in QApplication::notify () from /usr/lib/libQtGui.so.4
#37 0xb7d7b2ad in KApplication::notify (this=0xbff637ac, receiver=0xbff637ac, event=0x9b9a188) at /build/buildd/kde4libs-4.2.2/kdeui/kernel/kapplication.cpp:307
#38 0xb619fe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#39 0xb61a0ae5 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#40 0xb61a0cdd in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#41 0xb61ca82f in ?? () from /usr/lib/libQtCore.so.4
#42 0xb5481718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#43 0xb5484dc3 in ?? () from /usr/lib/libglib-2.0.so.0
#44 0xb5484f81 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#45 0xb61ca478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#46 0xb66edea5 in ?? () from /usr/lib/libQtGui.so.4
#47 0xb619e52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#48 0xb619e6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#49 0xb61a0da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#50 0xb6653767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#51 0x08051184 in main (argc=) at /build/buildd/kdepim-4.2.2/korganizer/main.cpp:59

The really bizarre thing, however, is the workaround: It appears that I can suppress this bug by removing the following configuration stanza:

[Filter_Active]
CategoryList=
Criteria=8
HideTodoDays=0

This filter is not even the active filter:

[FilterView]
Current Filter=Default
FilterEnabled=true

For completeness, I've attached the entire crash-extracting configuration file.

With this bad config, korganizer starts up fine if called with e.g. --open, even when opening std.ics. Even so, if you need more information about the calendar file, such as whether removing certain events suppresses this bug, let me know and I'll have a look.

Cheers,

--Ian