Comment # 11 on bug 1142268 from James Fehlig

To verify my suspicion of a qemu bug:

Leap 15.1
# qemu-system-x86_64 -display sdl -sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny
Bad system call (core dumped)
# qemu-system-x86_64 -display sdl -sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=allow
works fine

Tumbleweed
# qemu-system-x86_64 -display sdl -sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny
works fine