Re: nnrss often hangs recent CVS Emacs

[Katsumi Yamaoka <yamaoka@jpl.org>]

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>> "Andrew A. Raines" <aaraines@pobox.com> writes:
>>
>>> nnrss, however, works intermittently.  Often when updating a group,
>>> Emacs will hang indefinitely.

> Adam Duck <duck@informatik.uni-frankfurt.de> writes:

>> I have a strange problem, too: whenever I make multiple
>> rss-feeds update and make emacs lose its focus, emacs
>> will stay hogging all CPU time.

>>>>> In <87hdlpcc6r.fsf@mid.packer.its.vanderbilt.edu> Andrew A. Raines wrote:

> Yes, this happens to me too.  Any updating of nnrss groups
> only works 10% of the time.  However, when it fails and I
> hit C-g to regain control, if I immediately try an update
> it will generally work.

I found the way to reproduce the problem.  It is `g', not `M-g'.
I'm not sure but it may occur only when using the http proxy.  I
also found the way to fix it; it is to apply the following patch
to url.el.


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--- url.el~	2004-11-21 22:23:54 +0000
+++ url.el	2005-01-11 06:18:59 +0000
@@ -187,7 +187,7 @@
 	;; However, raman claims that it blocks Emacs with Emacspeak
 	;; for unexplained reasons.  Put back for his benefit until
 	;; someone can understand it.
-	;; (sleep-for 0.1)
+	(sleep-for 0.1)
 	(sit-for 0.1))
       asynch-buffer)))
 

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However, there is the unknown reason that we cannot use it in
Emacs globally.  See the comment in the url-retrieve-synchronously
function definition.

Another solution is not to use the url ELisp package.  To do
that, use the following:

(setq mm-url-use-external t)

And Gnus comes to use the wget command instead of the url ELisp
package.  Where wget is normally the default value for the
mm-url-program variable.  You can alter it to w3m, lynx, etc.