Hi,

I noticed for a while now, tramp ignores my control path settings for a
remote host.  To elaborate, I have the following in my ~/.ssh/config.

Host	*
	Protocol		2
	TCPKeepAlive		yes
	ServerAliveInterval	60
	ControlPath		/tmp/ssh-ControlPath-%r@%h:%p

Now I connect to a remote host from the terminal like this:

  $ ssh -M remotehost

For any subsequent connections from another terminal, I can do the
following to login without having to type my password.  SSH sees a
control path for the host exists, and establishes the subsequent
connection piggy-backing on the first.

  $ ssh remotehost

Now when from emacs I try to open a remote file,

  C-x C-f /remotehost:path/to/file RET

I get prompted for a password: "Password for /ssh:remotehost: ".
Entering it doesn't let me open the remote file either.  The attached
log file has the messages from the Messages and tramp debug buffer.

Any ideas what is wrong?

PS: While writing this email, I realised maybe there is a conflict with
    the ControlPath for remotehost and the ControlPath used by tramp.

-- 
Suvayu

Open source is the future. It sets us free.