Re: [Bug-tar] Detection of sparse files is broken on btrfs

[Paul Eggert]

Joerg Schilling wrote:
> > I'm afraid we'll just have to agree to disagree here. Even if you expect
> > a particular behavior, it's not the behavior that I expect nor is it the
> > behavior that we actually observe. You can take up up with the POSIX
> > committee if you like; please reference this discussion so that they can
> > see the arguments on both sides.

> You seem to missinterpret the facts.

Not at all. We have a disagreement about what POSIX requires. Nothing in the 
POSIX standard clearly disallows the behavior in question, and the arguments 
you're making about what POSIX requires are based on a long chain of indirect 
inferences that are unconvincing. Again, we'll just have to agree to disagree here.

> It seems that only btrfs behaves this way

Perhaps so, but that does not mean btrfs fails to conform to POSIX. Lots of 
systems have their idiosyncrasies; that doesn't mean they fail to conform to the 
standard.