Certainly "rocking" can mean "moving from side to side" - sometimes violently. However, there is no implication in the word "rocking" that anything needs fixing. In this context, a boat or ship will rock, as will a cradle, but neither need fixing because that's what they're supposed to do.
I have scanned my dictionary quite careful on this point, and cannot find ANY interpretation of "r
Thank you Rommie. I said " In a context of things needing fixing 'rocking' could mean unstable." I didn't say it inherently meant broken, but thank you anyway.