Always protect pv_unlink4_4c() with splvm(). This suddenly makes sun4/4c feel much much happier.
Always protect pv_unlink4_4c() with splvm(). This suddenly makes sun4/4c
feel much much happier.

ok deraadt@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars