Fedora 20 x86_64:
rsync-3.1.0-1pre1.fc20.x86_64
kernel-3.12.6-300.fc20.x86_64

# rsync   --exclude='/swapfile' \
          --exclude='/home/*/.gvfs' \
          --exclude='/tmp/*' \
          --exclude='/var/tmp/*' \
          -A -X -a -H -x -v --delete / /mybook/raiz-t61-p.f20/
[...]
var/lib/mlocate/mlocate.db
rsync: xattrs.c:572: send_xattr_request: Assertion `f_out >= 0' failed.
rsync: connection unexpectedly closed (35060 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(226) [sender=3.1.0pre1]

# df | grep ext4
/dev/sda1 on / type ext4 (rw,noatime,discard,data=ordered)
/dev/sdb on /mybook type ext4 (rw,noatime,data=ordered)