This example is specific to C++

> (..) if your programme crashes there's no guarantee that you'll ever give the resources back.

What guarantees can you have from a "crashing program", and by what definition of crashing?

> RAII is a leaky abstraction

Any abstraction is leaky if you look close enough.

You might like https://www.usenix.org/conference/hotos-ix/crash-only-softwa...