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bug#985: 23.0.60; emacsclient -c error on first time in new SSH sessions
From: |
Stefan Monnier |
Subject: |
bug#985: 23.0.60; emacsclient -c error on first time in new SSH sessions |
Date: |
Tue, 16 Sep 2008 11:23:14 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) |
> On machine A (Ubuntu Intrepid), I do:
> $ emacs -nw -Q -f server-start
>> From machine B (OSX 10.4 or Ubuntu Intrepid running in Virtualbox), I
> SSH to machine A:
> $ ssh -X -Y <machine A>
> and then, in the SSH session, do:
> $ emacsclient -c
> As expected, I get an X frame on machine B. I then close that frame
> (C-x 5 0) and the SSH session (C-d) and, from B, SSH to A again:
> $ ssh -X -Y <machine A>
> When I then do "emacsclient -c" in the SSH session, it says:
> Waiting for Emacs...
> *ERROR*: Connection lost to X server `localhost:10.0'
> When I then again do "emacsclient -c", it works without problems, and
> I get again an X frame on machine B every further time I do it.
I think I know what's going on: even tho you've closed the frame,
Emacs did not close the X11 connection, so when you ssh in again and try
"emacsclient -c" a second time (and with the same
DISPLAY=localhost:10.0), Emacs tries to reuse the old connection, which
fails because that X11-proxy was killed along with your first
ssh session. At that point, Emacs throws away this stale connection, so
that the next attempt works again.
I guess Emacs could/should disconnect from the X server as soon as the
last frame is closed.
Stefan