Re: Gnus frequently hangs at "nnimap read 0k from imap.gmail.com"

[Tassilo Horn <tsdh@gnu.org>]

Didier Verna <didier@xemacs.org> writes:

Hi Didier,

>>> since about one or two months, Gnus frequently hangs when retrieving new
>>> mail from Gmail.
>> ...
>>> Is there anyone else encountering this problem?
>>
>> Yes, exactly as you describe.  I can tell almost immediately when
>> it's about to hang and I just do as you do: hit C-g, then g and it
>> works fine.
>
>   I've been getting this for much more than 2 months. It also depends
>   on where I am (at work, it doesn't happen; at home, all the
>   time).

For me, it happens at work, at home, and lately I've traveled to
Budapest where it also happened both from the hotel as well as the
university.

>   Something that helps a bit is this:
>
> ;; This function is hooked into gnus-get-new-news-hook and
> ;; gnus-summary-exit-hook in order to prevent hangs. Sometimes, Emacs doesn't
> ;; notice that the connection is lost.
> (defun dvl-gnus-kill-server-connections ()
>   "Kill Gnus server connections.
> See also the variable `dvl-gnus-kill-server-connections'."
>   (when dvl-gnus-kill-server-connections
>     (call-process "killall" nil nil nil "gnutls-cli")))

I've compiled emacs with gnutls support, so no external gnutls-cli will
be spawned when making a connection (I think).  At least

  % while true; do ps -e | grep gnutls; done

doesn't generate any output when closing and re-opening a connection
from the server buffer, or when checking for new mail with `g'.

Bye,
Tassilo