Subject: Re: bug#63865: 29.0.90; call-process while owning the X selection hangs other processes

From: Po Lu <[email-masked]>
Date: Sun, 04 Jun 2023 08:15:03 +0800

Spencer Baugh <[email-masked]> writes:

> Other things which make Emacs busy still let Emacs respond to X
> selection requests.

Only if Emacs is still reading keyboard input.  Responding to selection
requests is only possible when it is safe to run Lisp.  A cursory
examination of xselect.el will show why.