bug#57911: Abolish max-specpdl-size

[Lars Ingebrigtsen]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Received by eggs at 13:35:01 -0400, but not passed on until 13:55:38
> -0400 -- 20 minutes later.

Whatever it is that's going on, it seems to be getting worse.  For
instance, this message via debbugs (from Eli) took over four hours to
arrive:

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        (Exim 4.92)
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<bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org>)
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        for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 20 Sep 2022 22:26:05 +0200
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It's the same problem with emacs-diffs mails, so it's not limited to
debbugs.