In some cases, inside the Caller node's children, the same Caller node can be found recursively. Structure (shown in the image): Caller -> /filename/ -> /function/ -> Caller -> /filename/ -> ... 
In some cases, inside the Caller node's children, the same Caller node can be found recursively.
Structure (shown in the image):
Caller -> /filename/ -> /function/ -> Caller -> /filename/ -> ...