While trying to mount a DFS Windows network-share (CIFS) on Ubuntu 12.04 LTS (precise pangolin), I get the following message:
dmesg adds some "familiar" comments (see my other thread #1958:mount error(115): Operation now in progress
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
Strangely though, the same mount works flawlessly on another machine with identical OS and config (PXE boot. So they are literally identical)...[ 276.352021] CIFS VFS: Error connecting to socket. Aborting operation
[ 276.352104] CIFS VFS: cifs_mount failed w/return code = -115
In my case, the DFS share was on a storage in a different subnet. I added a network alias (eth0:1) with an IP in that storage-subnet and then it worked.
I would have expected something like "no route to host" instead of the cryptic "error (115): Operation now in progress"...
Well, can't have it all