Application: ktimetracker (4.4.5)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic-pae i686
Distribution: Estobuntu 11.06

-- Information about the crash:
- What I was doing when the application crashed:
I used KTimetracker and KOrganizer calendar programs at the same time the file ~ / .kde / share / apps / korganizer / std.ics. So it is possible to add the calendar task working times. Unfortunately, both programs terminate the working  with error when I add a new task to KOrganizer. 
When the calendar file, use only one program, then it works.

- Custom settings of the application:

The crash can be reproduced some of the time.

-- Backtrace:
Application: KTimeTracker (ktimetracker), signal: Segmentation fault
[Current thread is 1 (Thread 0xb36c5730 (LWP 3113))]

Thread 2 (Thread 0xb331bb70 (LWP 3114)):
#0  0xb7776424 in __kernel_vsyscall ()
#1  0xb5c52f76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb467684b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb46661af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb466692b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb3443304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb468f2df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb4718e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb5c6173e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb36c5730 (LWP 3113)):
[KCrash Handler]
#7  size (this=0x8f6a110, current=0x8faf020) at ../../include/QtCore/../../src/corelib/tools/qlist.h:94
#8  count (this=0x8f6a110, current=0x8faf020) at ../../include/QtCore/../../src/corelib/tools/qlist.h:267
#9  childCount (this=0x8f6a110, current=0x8faf020) at itemviews/qtreewidget.h:190
#10 QTreeWidgetItemIteratorPrivate::next (this=0x8f6a110, current=0x8faf020) at itemviews/qtreewidgetitemiterator.cpp:289
#11 0xb6ac911b in QTreeWidgetItemIterator::operator++ (this=0xbf9f53d0) at itemviews/qtreewidgetitemiterator.cpp:183
#12 0xaf520c1b in TaskView::count (this=0x8ce7fd0) at ../../ktimetracker/taskview.cpp:650
#13 0xaf53760d in TimetrackerWidget::slotUpdateButtons (this=0x8dac418) at ../../ktimetracker/timetrackerwidget.cpp:662
#14 0xaf53b495 in TimetrackerWidget::qt_metacall (this=0x8dac418, _c=QMetaObject::InvokeMetaMethod, _id=67, _a=0xbf9f55ec) at ./timetrackerwidget.moc:267
#15 0xb5fd56ba in QMetaObject::metacall (object=0x8dac418, cl=QMetaObject::InvokeMetaMethod, idx=94, argv=0xbf9f55ec) at kernel/qmetaobject.cpp:237
#16 0xb5fe54ff in QMetaObject::activate (sender=0x8dac418, m=0xaf54bb84, local_signal_index=3, argv=0x0) at kernel/qobject.cpp:3287
#17 0xaf5359a7 in TimetrackerWidget::updateButtons (this=0x8dac418) at ./timetrackerwidget.moc:298
#18 0xaf53b4e0 in TimetrackerWidget::qt_metacall (this=0x8dac418, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbf9f573c) at ./timetrackerwidget.moc:187
#19 0xb5fd56ba in QMetaObject::metacall (object=0x8dac418, cl=QMetaObject::InvokeMetaMethod, idx=30, argv=0xbf9f573c) at kernel/qmetaobject.cpp:237
#20 0xb5fe54ff in QMetaObject::activate (sender=0x8ce7fd0, m=0xaf54b140, local_signal_index=2, argv=0x0) at kernel/qobject.cpp:3287
#21 0xaf521657 in TaskView::updateButtons (this=0x8ce7fd0) at ./taskview.moc:242
#22 0xaf525934 in TaskView::stopTimerFor (this=0x8ce7fd0, task=0x8f22040) at ../../ktimetracker/taskview.cpp:811
#23 0xaf526fa9 in TaskView::qt_metacall (this=0x8ce7fd0, _c=QMetaObject::InvokeMetaMethod, _id=37, _a=0xbf9f58f8) at ./taskview.moc:201
#24 0xb5fd56ba in QMetaObject::metacall (object=0x8ce7fd0, cl=QMetaObject::InvokeMetaMethod, idx=152, argv=0xbf9f58f8) at kernel/qmetaobject.cpp:237
#25 0xb5fe54ff in QMetaObject::activate (sender=0x8f9d240, m=0xaf54a7c8, local_signal_index=1, argv=0xbf9f58f8) at kernel/qobject.cpp:3287
#26 0xaf509753 in DesktopTracker::leftActiveDesktop (this=0x8f9d240, _t1=0x8f22040) at ./desktoptracker.moc:101
#27 0xaf509bf7 in DesktopTracker::registerForDesktops (this=0x8f9d240, task=0x8f22040, desktopList=...) at ../../ktimetracker/desktoptracker.cpp:114
#28 0xaf525448 in TaskView::deletingTask (this=0x8ce7fd0, deletedTask=0x8f22040) at ../../ktimetracker/taskview.cpp:1041
#29 0xaf526f34 in TaskView::qt_metacall (this=0x8ce7fd0, _c=QMetaObject::InvokeMetaMethod, _id=34, _a=0xbf9f5b18) at ./taskview.moc:198
#30 0xb5fd56ba in QMetaObject::metacall (object=0x8ce7fd0, cl=QMetaObject::InvokeMetaMethod, idx=149, argv=0xbf9f5b18) at kernel/qmetaobject.cpp:237
#31 0xb5fe54ff in QMetaObject::activate (sender=0x8f22040, m=0xaf54b0a4, local_signal_index=1, argv=0xbf9f5b18) at kernel/qobject.cpp:3287
#32 0xaf51c803 in Task::deletingTask (this=0x8f22040, _t1=0x8f22040) at ./task.moc:101
#33 0xaf51c840 in Task::~Task (this=0x8f22040, __in_chrg=<value optimized out>) at ../../ktimetracker/task.cpp:141
#34 0xaf51c912 in Task::~Task (this=0x8f22040, __in_chrg=<value optimized out>) at ../../ktimetracker/task.cpp:143
#35 0xb6aa599e in QTreeModel::clear (this=0x8f9ac78) at itemviews/qtreewidget.cpp:166
#36 0xaf512644 in timetrackerstorage::buildTaskView (this=0x8f9bde0, rc=0x8f165b0, view=0x8ce7fd0) at ../../ktimetracker/timetrackerstorage.cpp:254
#37 0xaf520462 in TaskView::iCalFileModified (this=0x8ce7fd0, rc=0x8f165b0) at ../../ktimetracker/taskview.cpp:515
#38 0xaf52706a in TaskView::qt_metacall (this=0x8ce7fd0, _c=QMetaObject::InvokeMetaMethod, _id=45, _a=0xbf9f5e58) at ./taskview.moc:212
#39 0xb5fd56ba in QMetaObject::metacall (object=0x8ce7fd0, cl=QMetaObject::InvokeMetaMethod, idx=160, argv=0xbf9f5e58) at kernel/qmetaobject.cpp:237
#40 0xb5fe54ff in QMetaObject::activate (sender=0x8f165b0, m=0xb7715e84, local_signal_index=0, argv=0xbf9f5e58) at kernel/qobject.cpp:3287
#41 0xb76eeaf3 in KCal::ResourceCalendar::resourceChanged (this=0x8f165b0, _t1=0x8f165b0) at ./resourcecalendar.moc:123
#42 0xb76f10a5 in KCal::ResourceLocal::reload (this=0x8f165b0) at ../../kcal/resourcelocal.cpp:208
#43 0xb76f1101 in KCal::ResourceLocal::qt_metacall (this=0x8f165b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbf9f5f98) at ./resourcelocal.moc:72
#44 0xb5fd56ba in QMetaObject::metacall (object=0x8f165b0, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0xbf9f5f98) at kernel/qmetaobject.cpp:237
#45 0xb5fe54ff in QMetaObject::activate (sender=0x8f16cf4, m=0xb6376044, local_signal_index=2, argv=0xbf9f5f98) at kernel/qobject.cpp:3287
#46 0xb61fdeb3 in KDirWatch::deleted (this=0x8f16cf4, _t1=...) at ./kdirwatch.moc:113
#47 0xb61fdf14 in KDirWatch::setDeleted (this=0x8f16cf4, _file=...) at ../../kdecore/io/kdirwatch.cpp:1871
#48 0xb61fe01d in KDirWatch::qt_metacall (this=0x8f16cf4, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x8f1f190) at ./kdirwatch.moc:87
#49 0xb5fd56ba in QMetaObject::metacall (object=0x8f16cf4, cl=QMetaObject::InvokeMetaMethod, idx=9, argv=0x8f1f190) at kernel/qmetaobject.cpp:237
#50 0xb5fdfe16 in QMetaCallEvent::placeMetaCall (this=0x8f66a08, object=0x8f16cf4) at kernel/qobject.cpp:535
#51 0xb5fe43b7 in QObject::event (this=0x8f16cf4, e=0x8f66a08) at kernel/qobject.cpp:1226
#52 0xb64acd24 in QApplicationPrivate::notify_helper (this=0x8c1a938, receiver=0x8f16cf4, e=0x8f66a08) at kernel/qapplication.cpp:4462
#53 0xb64b18ce in QApplication::notify (this=0xbf9f68a8, receiver=0x8f16cf4, e=0x8f66a08) at kernel/qapplication.cpp:3862
#54 0xb6fe132a in KApplication::notify (this=0xbf9f68a8, receiver=0x8f16cf4, event=0x8f66a08) at ../../kdeui/kernel/kapplication.cpp:311
#55 0xb5fcf0bb in QCoreApplication::notifyInternal (this=0xbf9f68a8, receiver=0x8f16cf4, event=0x8f66a08) at kernel/qcoreapplication.cpp:731
#56 0xb5fd2c79 in sendEvent (receiver=0x0, event_type=0, data=0x8bdbbc8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#57 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8bdbbc8) at kernel/qcoreapplication.cpp:1372
#58 0xb5fd2e0d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#59 0xb5ffc3c4 in sendPostedEvents (s=0x8c1d0d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#60 postEventSourceDispatch (s=0x8c1d0d0) at kernel/qeventdispatcher_glib.cpp:277
#61 0xb4665aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#62 0xb4666270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#63 0xb4666524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#64 0xb5ffc53c in QEventDispatcherGlib::processEvents (this=0x8bdb748, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#65 0xb65631e5 in QGuiEventDispatcherGlib::processEvents (this=0x8bdb748, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#66 0xb5fce289 in QEventLoop::processEvents (this=0xbf9f67f4, flags=...) at kernel/qeventloop.cpp:149
#67 0xb5fce522 in QEventLoop::exec (this=0xbf9f67f4, flags=...) at kernel/qeventloop.cpp:201
#68 0xb5fd2ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#69 0xb64aa8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#70 0x0805e431 in main (argc=) at ../../ktimetracker/main.cpp:137

Possible duplicates by query: bug 235039.

Reported using DrKonqi