Hello, [I'm not subscribed to the list please CC me when replying] I'm testing overlayfs on 3.12 (own-made port) and on 4.4 (to confirm behavior) and what I observe is that when I try to write to a file in the merge directory e.g: echo "test" > merged/test-file1 I get -EINVAL on 3.12 and -ENXIO on 4.4. However, when I try to touch a file in the merged directory I have no issues. This happens only when the lower mount is either CIFS/NFS. When it's another ext4 directory I have no problems whatsoever. Is this behavior expected, I'm willing to assume I've screwed up the 3.12 port but given that I see this on 4.4 (no custom modifications) I'm beginning to think this is innate into the the design? Regards, Nikolay -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html