> hi, i was just wondering are there known issues in netbsd with the null,
> or union, filesystems? kernel panicing, and/or system hanging type
> problems?

A number of problems of this sort have been fixed in -current; there
may well be others still in there. If you know of specific ways to
trigger failures in union/null/etc, please let us know..
(ideally by filing a PR with as much relevant information as possible
about the failure).

				- Bill