[digi_owl]

Don't read that one email, read the whole exchange.

Also, one rule Torvalds holds kernel development to is "do not break user space". If a kernel patch exposes an API, the behavior of said API is fixed from that point onwards.

If a subsequent patch change the behavior, thus causing something in user space to error out, said patch is broken.

All this should be known to the person Torvalds is talking to, having doing this for some time. Yet when the issue is pointed out, he tries to pass the blame to user space.