bug#63589: [PATCH] 29.0.91; crash after creating graphical frames via emacsclient when compiled with cairo-xcb

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> Why is this bad?  It isn't clean, I agree, but what problems would
> this cause to Emacs and the user, and why is this worse than the
> current situation where Emacs crashes?

Because if the connection to the other X server becomes very slow, or
abruptly disappears, Emacs could lock up or crash.

> But that evidently happens already with other toolkits, doesn't it?
> So I guess these forced deletions are very rarely used.

Connecting Emacs to multiple displays is already rarely used.  But we've
been hearing people complain about such crashes on other toolkits a lot,
so it is certainly an important situation to consider.

> (Btw, I hope I understood correctly what you mean by "former" and
> "latter"; if not, please tell explicitly what they are, since the
> citations above don't include any two cases to which this could
> allude, so I needed to guess.)

You understood correctly.  I'm sorry I was not sufficiently clear.