Somewhere inside the VM we allow I guess nested tracing which is messing up ThreadFrame pointers and information. When this is fixed we can do the below.  Until then we need to at least remove C calls and returns and possibly other events as well.
Somewhere inside the VM we allow I guess nested tracing which is
messing up ThreadFrame pointers and information. When this is fixed we
can do the below.  Until then we need to at least remove C calls and
returns and possibly other events as well.

rocky/rb-trepanning,rocky/rb-trepanning