Re: nnrss often hangs recent CVS Emacs

[Mark Plaksin <happy@mcplaksin.org>]

"Andrew A. Raines" <aaraines@pobox.com> writes:

> I switched a few days ago to Emacs 21.3.50 from 21.3.1.
> Gnus seems to like the newer environment.  Things seem
> much smoother and updates to the group buffer when
> fetching mail and news are quicker.
>
> nnrss, however, works intermittently.  Often when updating
> a group, Emacs will hang indefinitely.  I mean _really_
> hang -- if I have an external process going in the
> background (like mplayer through EMMS), the track will
> pause, and if I let Gnus run through its course (something
> eventually times out I guess), my erc sessions get
> disconnected.

A while back I traced this problem to make-network-process.  But I'm not
sure that's the problem any more.  nnrss uses the url package which uses
make-network-process.  Unless you give it the nowait option (which the url
package doesn't), make-network-process blocks until it makes a connection
or a timeout occurs.  That seemed to explian it.

Recently I tried to reproduce the problem (by calling make-network-process
directly) and C-g always interrupted it.  So maybe the problem is gone in
the latest CVS Emacs.  I'm running on Linux; it might be a different story
on Windows.

If you happen to be using the multi-tty branch, C-g only interrupts
make-network-stream when you're in the initial Emacs window.  For some
reason it doesn't interrupt it in subsequent windows.