bug#71452: 30.0.50; GNUS hangs on IMAP/s reads starting at commit bbc1803

[Stefan Kangas]

epg@pretzelnet.org writes:

> Eli Zaretskii <eliz@gnu.org> writes:
>
>> Does it help to set read-process-output-fast to a nil value?
>
> As far as I can tell, yes that does help!  I opened quite a few
> folders and messages, way more than it took to cause a hang
> earlier.  No hang!
>
> Tested with 'emacs -Q' built from commit
> 0aed6f5f0d9319dc616424e2c7df80580a04c739 and with the following
> configuration:
>
> (setq
>       read-process-output-fast nil
>       gnus-select-method '(nnnil "")
>       gnus-secondary-select-methods
>       '(
>         (nnimap "imap.fastmail.com"
>                 (nnimap-stream ssl)
>                 (nnimap-record-commands t)
>                  ;; TODO expiry?!  (nnmail-expiry-target 
> "nnimap+gmail:[Gmail]/Trash")
>                 )
>         )
>       )
>
> Thanks!

Copying in Dmitry.

Not sure if it's relevant, but note also my recent commit
a1a4c6dccbe7aeeac97635df54797ebf6c0ce789.