Re: Crash on make-frame-on-display with SSH display

[Gerd Moellmann]

Martin Schwenke <martins@linuxcare.com.au> writes:

> In GNU Emacs 20.7.2 (i386-debian-linux-gnu, X toolkit)
>  of Wed Jun 21 2000 on raven
> configured using `configure  i386-debian-linux-gnu --prefix=/usr 
> --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib 
> --infodir=/usr/share/info --with-pop=yes --with-x=yes --with-x-toolkit=yes'
> 
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug:
> 
> 1. Start Emacs under X (with "-q" if you like, shouldn't matter).
> 
> 2. From an xterm:
> 
>      ssh localhost
> 
>    and then from the SSH session:
> 
>      echo $DISPLAY
> 
> 3. In Emacs, evaluate:
> 
>      (make-frame-on-display "DISPLAY-FROM-ABOVE")
> 
>    Emacs exits.
> 
>    This can also be triggered by calling
> 
>      (x-open-connection "DISPLAY-FROM-ABOVE")
> 
> You wouldn't expect this to necessarily work, since SSH puts the magic
> cookie for the display in its own file somewhere under /tmp and sets
> $XAUTHORITY accordingly (I'm using the Debian OpenSSH package, version
> 1.2.3-9).  Emacs doesn't know where to find the xauth file, so it
> should fail to open the frame.  However, it should not exit.

Thanks for the report, Martin.  I think I've fixed this in our current
sources.  When 21.1 is released, please check that it works, and 
file a new bug report if not.