Marc Cousin <cousinmarc(at)gmail(dot)com> writes:
> I hope I'm not going to expose an already known problem, but I couldn't find
> it mailing list archives (I only found http://archives.postgresql.org/pgsql-
> hackers/2009-12/msg01543.php).
You sure this isn't the well-known "ext4 actually implements fsync
where ext3 didn't" issue?
regards, tom lane