Failure on 'g'

Failure on 'g'

[Morgan Fletcher]

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I recently changed news servers. Set $NNTPSERVER to the new server, started
up emacs/gnus, did 'b', then got used to the new article counts.

I subscribed to some newsgroups that were only on the new news server, by
doing 'B RET nntp RET (etc.)', then toggling subscription on the ones I
want and quitting out of the browse session. However, sometimes when I get
new news/mail with '3 g' or just 'g', I get this backtrace. Quitting it and
trying again will allow me to proceed without a failure.

Signaling: (error "Selecting deleted buffer")
  nntp-retrieve-groups(...)
  gnus-retrieve-groups(...)
  gnus-read-active-file-2(...)
  gnus-get-unread-articles(3)
  gnus-group-get-new-news(3)
  call-interactively(gnus-group-get-new-news)

I'm running Gnus 5.8.7, emacs 20.7.2 on debian linux. I have a moderately
tweaked .gnus. I've attached a neutralized copy of it.

What's up?

morgan

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;; -*-mode: Lisp; -*-
(setq gnus-secondary-select-methods
      '((nnml "private"))
)
(setq nnmail-crosspost nil)

(setq nnmail-split-methods
      '((...)))

(setq nnmail-spool-file
      '((file)
	(pop :server "shell3.ba.best.com"
	     :port 110
	     :password "password")
 	(pop :server "rubicon.off-road.com"
 	     :port 110
 	     :password "password")
	))
(setq nnmail-tmp-directory "/home/morgan/Gnus_mail")
(setq nnmail-expiry-wait 14)
(setq gnus-auto-expirable-newsgroups "nnml:.*\\|nnfolder:.*")
(setq nnml-get-new-mail t)
(setq nnml-directory "/home/morgan/Gnus_mail")

(setq mail-yank-prefix "> ")
(setq gnus-local-organization "DarlaDaisy Enterprises")
(setq news-reply-header-hook
      (lambda () (insert news-reply-yank-from " writes:\n\n")))
(setq gnus-use-cache t)
(add-hook 'gnus-group-mode-hook 'gnus-topic-mode)
(setq nnmail-treat-duplicates "delete")
(add-hook 'message-sent-hook 'gnus-score-followup-thread)
(setq gnus-summary-ignore-duplicates t)
(setq gnus-thread-sort-functions '(gnus-thread-sort-by-number
                                   gnus-thread-sort-by-date))