Re: Emacs daemon dies at Xorg crash

[Ulrich Mueller]

>>>>> On Thu, 18 Dec 2008, Dan Nicolaescu wrote:

>> >> > Can you try the patch at:
>> >> > http://permalink.gmane.org/gmane.emacs.bugs/22201
>> >> 
>> >> Tested and Emacs doesn't die anymore. I find the "Connection lost ..."
>> >> message in the *Messages* buffer after reconnecting.
>> 
>> > IMO that patch is good, but it fixes the effect in this case, not the
>> > cause.
>> 
>> Hm, could you please elaborate what you mean by "effect" and "cause"
>> here?

> Emacs dies because something tries to call message while no frame is
> open.  This is the "effect".  The "cause" is whatever causes that
> message to be written, it probably should not happen.

But "X connection lost" is precisely what happens. What could Emacs do
to prevent this, if there is suddenly no X server anymore?

> And indeed, even for you, it happens only for some specific window
> managers.

Looks like IceWM sends a WM_DELETE_WINDOW message to the X clients
before it exits, while Xfce4 doesn't do this.

What happens if you kill -9 your X server? Does Emacs die?

Ulrich