netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
To: mbp@samba.org (Martin Pool)
Cc: davem@redhat.com, ak@muc.de, netdev@oss.sgi.com, Alan.Cox@linux.org
Subject: Re: FIN_WAIT1 / TCP_CORK / 2.2 -- reproducible bug and test case
Date: Thu, 19 Sep 2002 03:38:37 +0400 (MSD)	[thread overview]
Message-ID: <200209182338.DAA00778@mops.inr.ac.ru> (raw)
In-Reply-To: <20020918020927.GB2285@samba.org> from "Martin Pool" at Sep 18, 2 12:09:29 pm

Hello!

> I can't reproduce it on 2.4.18 or .19.  It looked to me like
> tcp_snd_test() and related stuff had been substantially rewritten.

No, tcp_snd_test() in 2.2 is backport and it is accurate.
Apparently, the problem remained in another place, which was not backported.

I think this is tcp_send_fin(). It is obscure and apparently incorrect
at least on corked sockets. I would kill all the dubious "if" after

/* Special case to avoid Nagle bogosity....

and replaced it with straight tcp_push_pending_frames() like it was
made in 2.4. Please, try.

Alexey


BTW your tcpdump contains less than 25% of packets. And all the interesting
piece is absent completely. :-)

  reply	other threads:[~2002-09-18 23:38 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-18  2:03 FIN_WAIT1 / TCP_CORK / 2.2 -- reproducible bug and test case Martin Pool
2002-09-18  1:58 ` David S. Miller
2002-09-18  2:09   ` Martin Pool
2002-09-18 23:38     ` Alexey Kuznetsov [this message]
2002-09-26  5:47       ` Martin Pool
2002-09-26 13:09         ` kuznet
2002-09-26 20:46           ` David S. Miller
2002-09-30  9:59             ` Martin Pool
2002-09-30 10:32               ` David S. Miller
2002-09-30 12:23               ` Alan Cox
2002-10-03  3:30                 ` James Morris
2002-10-03  3:54                   ` Andi Kleen
2002-10-03  7:59                     ` David S. Miller
2002-10-03  7:56                   ` David S. Miller
2002-09-18  2:30   ` Martin Pool
  -- strict thread matches above, loose matches on Subject: below --
2002-10-04 15:06 James Morris
2002-10-04 23:27 ` Martin Pool
2002-10-05  7:51 ` Martin Pool
2002-10-05 11:53   ` James Morris
2002-10-08 10:21     ` Martin Pool
2002-10-08 10:28       ` James Morris
2002-10-10 16:36     ` James Morris
2002-10-10 16:43       ` James Morris

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200209182338.DAA00778@mops.inr.ac.ru \
    --to=kuznet@ms2.inr.ac.ru \
    --cc=Alan.Cox@linux.org \
    --cc=ak@muc.de \
    --cc=davem@redhat.com \
    --cc=mbp@samba.org \
    --cc=netdev@oss.sgi.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).