// that the runtime will crash on if it sees it during GC or write barriers.
				// Since it is a not-in-heap pointer, all pointers to the heap are
				// forbidden! That makes the test pretty easy.
				// See issue 48399.
				if !verifyNotInHeapPtr(*(*uintptr)(ptr)) {
					panic("reflect: reflect.Value.Elem on an invalid notinheap pointer")
				}
			}
			ptr = *(*unsafe.Pointer)(ptr)
		}