From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/47672 Path: main.gmane.org!not-for-mail From: Simon Josefsson Newsgroups: gmane.emacs.gnus.general Subject: Re: double download of attachments? Date: Sat, 16 Nov 2002 13:23:02 +0100 Sender: owner-ding@hpc.uh.edu Message-ID: References: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1037449352 13387 80.91.224.249 (16 Nov 2002 12:22:32 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Sat, 16 Nov 2002 12:22:32 +0000 (UTC) Cc: ding@gnus.org Return-path: Original-Received: from malifon.math.uh.edu ([129.7.128.13]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 18D1y1-0003Tf-00 for ; Sat, 16 Nov 2002 13:22:30 +0100 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 18D1z7-0000fH-00; Sat, 16 Nov 2002 06:23:37 -0600 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Sat, 16 Nov 2002 06:24:23 -0600 (CST) Original-Received: from sclp3.sclp.com (qmailr@sclp3.sclp.com [209.196.61.66]) by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id GAA19594 for ; Sat, 16 Nov 2002 06:24:07 -0600 (CST) Original-Received: (qmail 7160 invoked by alias); 16 Nov 2002 12:23:14 -0000 Original-Received: (qmail 7155 invoked from network); 16 Nov 2002 12:23:14 -0000 Original-Received: from 178.230.13.217.in-addr.dgcsystems.net (HELO yxa.extundo.com) (217.13.230.178) by gnus.org with SMTP; 16 Nov 2002 12:23:14 -0000 Original-Received: from latte.josefsson.org (yxa.extundo.com [217.13.230.178]) (authenticated bits=0) by yxa.extundo.com (8.12.6/8.12.6) with ESMTP id gAGCN7Fu004015 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Sat, 16 Nov 2002 13:23:08 +0100 Original-To: dme@dme.org Mail-Copies-To: nobody X-Hashcash: 0:021116:dme@dme.org:3deb2d0ced8703dc X-Hashcash: 0:021116:ding@gnus.org:233e694f8f94119b User-Agent: Gnus/5.090008 (Oort Gnus v0.08) Emacs/21.3.50 (i686-pc-linux-gnu) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:47672 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:47672 dme@dme.org writes: > * jas@extundo.com [2002-11-15 15:30:41] >> OTOH sometimes when I enter groups with large messages, the summary >> buffer doesn't match the article buffer contents sometimes, and I have >> been suspecting the backlog and/or asynchronous prefetching for that >> (but never been able to track down exactly what is happening). >> Maybe if we enable the backlog by default, people will see >> the bug and fix it. > > I've seen this. I disabled the backlog, and it didn't go away. I'm now able to reproduce it (it is easy to reproduce if you have some large articles in the group that is prefetched early on). The cache, agent or backlog is not the cause, it seems to be caused by the asynch prefetch alone. The agent, cache and backlog only indirectly worsen the bug, since it makes the errorenous article stay around after the asynch prefetch received the incorrect article. When the agent, cache and backlog is disabled, the asynch article is incorrect when you first select it, but it is removed from the asynch cache when it is read so if you select the article again the correct article is downloaded. I'll try to track it down further... In any case, I think we should enable the backlog by default.