On 2015-05-29 19:11:58 +0000, Tom Lane wrote:
> Andres had brought it up back when we were
> still considering that most fsync failures should be hard errors, and it
> probably would be legit not to fail hard for ETXTBSY --- but the same is
> true for EROFS and other cases, which is why we gave up on hard failures.
> ETXTBSY is surely not a normal case, so logging the failure seems fine
> from here.
Note that EROFS etc should never happen without following symlinks,
whereas ETXTBSY conceivably could.
I'm fine though, with the special case being removed, I think you made a
good point that it's unlikely that e.g. an archive_command will run
during startup.