I am stumped, this pine has been sitting in this pot for years with out repot. The soil has what I'm guessing is white mold growing everywere, it's all thru out the soil not just on the out sides, it's heavy on the bottom but there was none on the top, any ideas to what it is or if it's bad? Thank you.

This is a sign of a very healthy pine. Trees live together with specific fungi, and for some species-e.g. pine- the fungi are visible.

See en.wikipedia.org/wiki/Mycorrhiza

Mycorrhizae = healthy roots

Thank you, this is my first pine and it's a old one. Never seen that befor, my trident had grown black mold on the base of his roots and I'm pretty sure he is dead.