On 07/08/2014 11:59 PM, Ken Raeburn wrote:

> This is a simplified version of a crash I got using emacsclient, daemon
> mode, and desktop-save-mode. My saved desktop configuration somehow has
> frames with different names for the same local display, perhaps because
> window manager buttons I use to invoke emacsclient cause ":0.0" to be
> used, and my xterm shells have DISPLAY set to ":0".
>
> Emacs is compiled with "--enable-checking --with-x-toolkit=lucid".
>
> Recipe:
>   1. emacs -Q --daemon
>   2. DISPLAY=:0 emacsclient -c -n
>   3. DISPLAY=:0.0 emacsclient -c -n
>   4. Use	a window-manager button	to delete the first Emacs window.
>   5. Emacs crashes with an assertion failure.

Reproduced. The whole thing looks like a mystery (perhaps Xlib makes a
difference between :0 and :0.0 somewhere in its innards), but this
workaround works for me. Can you please try it too?

Dmitry