bug#28596: 26.0.60; [Gnus] Checking mail is no longer reliable and C-g no longer quits

[Eli Zaretskii <eliz@gnu.org>]

Ping!

> Date: Mon, 04 Dec 2017 19:56:43 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: eric@ericabrahamsen.net, 28596@debbugs.gnu.org
> 
> > From: nljlistbox2@gmail.com (N. Jackson)
> > Cc: eric@ericabrahamsen.net,  28596@debbugs.gnu.org
> > Date: Mon, 04 Dec 2017 12:14:51 -0500
> > 
> > Hello Eli,
> > 
> > At 19:40 +0200 on Saturday 2017-12-02, Eli Zaretskii wrote:
> > >
> > > Any news on this? Is this problem still present in the Emacs
> > > 26.0.90 pretest?
> > 
> > Yes, the problem is still present with the 26.0.90 pretest. I ran
> > that for three weeks and the problem happened almost every day.
> > 
> > Then I went back to using Emacs 25 out of frustration.
> > 
> > No, sorry, no news. I wasn't able to get any traction on debugging
> > it; that would be so much easier if the code were in C! (I am
> > perennially unsuccessful when I try to get the Elisp debugger to
> > function the way I think it ought to, probably because I don't
> > understand the way it is supposed to work.)
> > 
> > However, I had forgotten (or never saw) your suggestions to
> > 
> >   "try setting url-asynchronous to nil when fetching news... [o]r
> >   maybe even build Emacs with HAVE_GETADDRINFO_A undefined"
> > 
> > and I will try that with 26.0.90 these next days.
> > 
> > Additionally, I am almost convinced that the problem is that Gnus
> > gets into an ambiguous state where part of it thinks it is
> > "unplugged" and part of it thinks it's "plugged", and that it
> > never even tries to retrieve the news in the cases where it seems
> > to be "broken".
> > 
> > Furthermore, I now believe that the hang that I had been observing
> > was just Bug 16026 / Bug 16906 and that I failed to recognise it
> > because I was too confused by the strange behaviour resulting from
> > this current bug.
> 
> Lars, can you help us here?  I'd hate to release Emacs 26.1 with this
> annoying problem.  Can we do something to have a solution or at least
> a reasonably convenient band-aid?
> 
> Thanks.