Bug 162367

cannot reproduce on r809608

Also cannot reproduce, r810995.

@Ellis: on the sixth point you write about glitches, could you post a screenshot? Moreover if you can reproduce the crash you should post the backtrace following the instruction on:
http://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports

(remember that backtrace without debug information are useless).

Thanks

Created attachment 24913 [details]
systemsettings-glitch-1.jpg

Created attachment 24914 [details]
systemsettings-glitch-2.jpg

Screenshots of graphical glitch attached.

systemsettings-glitch-1 shows the glitch. Basically, I expanded the 'Block Global Shortcuts' dropdown, then changed the KDE component to 'plasma'

systemsettings-glitch-2 shows the glitch after switching back to 'kwin' as the KDE component.

Following these two steps, I can crash the desktop in two ways:

With Desktop Effects, it crashes if I dbl-click 'Block Global Shortcuts' again. Without desktop effects enabled, it crashes after the window is closed.

I will provide backtraces with proper debug information after the -dbg libraries are installed. I have a poor connection, so I was hoping someone else could reproduce and post the proper info...

Now with backtrace goodness:

(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb652aa00 (LWP 16282)]
[KCrash handler]
#6  0xb776a9ba in ?? () from /usr/lib/libQtGui.so.4
#7  0xb7a5eacb in QHash<QPersistentModelIndex, QWidget*>::findNode (
    this=0xbf9d9474, akey=@0x82b7890, ahp=0x680073)
    at /usr/include/qt4/QtCore/qhash.h:841
#8  0xb776b72e in ?? () from /usr/lib/libQtGui.so.4
#9  0xbf9d9474 in ?? ()
#10 0x082b7890 in ?? ()
#11 0x00680073 in ?? ()
#12 0x00000000 in ?? ()
#0  0xb7f0d410 in __kernel_vsyscall ()

different backtrace from another crash:

(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb6565a00 (LWP 16296)]
[KCrash handler]
#6  0xb7f48410 in __kernel_vsyscall ()
#7  0xb6f98085 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb6f99a01 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb7df8a75 in qt_message_output () from /usr/lib/libQtCore.so.4
#10 0xb7df8b38 in qFatal () from /usr/lib/libQtCore.so.4
#11 0xb7df8cd5 in qt_assert () from /usr/lib/libQtCore.so.4
#12 0xb7a59f1d in KShortcutsEditorDelegate::itemActivated (this=0x82cbdd0, 
    index=@0xbfc48f90)
    at /build/buildd/kde4libs-4.0.3/kdeui/dialogs/kshortcutsdialog.cpp:244
#13 0xb7a5a071 in KShortcutsEditorDelegate::qt_metacall (this=0x82cbdd0, 
    _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfc4949c)
    at /build/buildd/kde4libs-4.0.3/obj-i486-linux-gnu/kdeui/kshortcutsdialog_p.moc:79
#14 0xb7ec7cf4 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb7ec88c2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb7733fd3 in QAbstractItemView::activated () from /usr/lib/libQtGui.so.4
#17 0xb777c09c in QTreeView::mouseDoubleClickEvent ()
   from /usr/lib/libQtGui.so.4
#18 0xb733efbd in QWidget::event () from /usr/lib/libQtGui.so.4
#19 0xb7633433 in QFrame::event () from /usr/lib/libQtGui.so.4
#20 0xb76b951f in QAbstractScrollArea::viewportEvent ()
   from /usr/lib/libQtGui.so.4
#21 0xb773f248 in QAbstractItemView::viewportEvent ()
   from /usr/lib/libQtGui.so.4
#22 0xb77772f3 in QTreeView::viewportEvent () from /usr/lib/libQtGui.so.4
#23 0xb76ba715 in ?? () from /usr/lib/libQtGui.so.4
#24 0x082ba5a0 in ?? ()
#25 0xbfc49d18 in ?? ()
#26 0xbfc49998 in ?? ()
#27 0xb72f5242 in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
Backtrace stopped: frame did not save the PC
#0  0xb7f48410 in __kernel_vsyscall ()

I fixed this on trunk. I guess it is part of 4.1.

*** This bug has been marked as a duplicate of 154647 ***