The problem is related to Virtualbox updating from 6.1.14 to 6.1.16 and causing conflicts with the respective kmp’s.
What I did:
1- update the kernel (if not already done)
2- update virtualbox (and dependencies).
dhcppc2:/home/zlatic # zypper up
Loading repository data...
Reading installed packages...
The following 10 package updates will NOT be installed:
libgstphotography-1_0-0 libvlc5 libvlccore9 virtualbox-kmp-default vlc
vlc-codec-gstreamer vlc-lang vlc-noX vlc-qt vlc-vdpau
Nothing to do.
1- make sure that the latest kernel-default is installed;
2- uninstall kernel-preempt (if installed);
3- uninstall virtualbox-kmp-preempt (that package is causing the problem);
4- update virualbox, virtualbox-kmp-default, virtualbox-qt to the 6.1.16 version.