"Scheduling while atomic"

[walt <wa1ter@xxxxxxxxxxxxx>]

I find that asking a basic/dumb question of a smart group of people
is often a very quick path to enlightenment :o)

I've seen the 'scheduling while atomic' panic message a few times
from the linux kernel over the years, and now I'm wondering if there
is an analogous panic in the BSD kernels, DF in particular.

If so, what would trigger such an event?