Comment # 3 on bug 953737 from Dmitry Ashkadov

+1, the same problem.
VirtualBox 5.0.8, Host OS is Windows.

I can add that some popup windows lead to crash of KDE panel. For example, when
popup "Hey, %user%, there are updates for your system" is shown, KDE panel
hides.

Dominique Leuenberger, if this is information you need, the needinfo flag may
be removed.