From: James Morris <jmorris@intercode.com.au>
To: davidm@hpl.hp.com
Cc: Martin Josefsson <gandalf@wlug.westbo.se>, <kuznet@ms2.inr.ac.ru>,
<linux-kernel@vger.kernel.org>, <linux-ia64@linuxia64.org>,
<netdev@oss.sgi.com>, "David S. Miller" <davem@redhat.com>
Subject: Re: fix TCP roundtrip time update code
Date: Wed, 4 Jun 2003 10:24:14 +1000 (EST) [thread overview]
Message-ID: <Mutt.LNX.4.44.0306041021450.28035-100000@excalibur.intercode.com.au> (raw)
In-Reply-To: <16092.60612.352739.581639@napali.hpl.hp.com>
On Tue, 3 Jun 2003, David Mosberger wrote:
> Martin> I tested this patch and it looks like it has cured my
> Martin> mysterious TCP stalls.
>
> Yes, this sounds reasonable. I wasn't very clear on this point, but
> "by going south" I meant that TCP is starting to misbehave. In
> particular, you'll likely end up with the kernel aborting ESTABLISHED
> TCP connections with extreme prejudice (and in violation of the TCP
> protocol), because it thought that it had been unable to communicate
> with the remote end for a _very_ long time. The net effect typically
> is that you end up with one end having a connection that's in the
> ESTABLISHED state and the other end having no trace of that
> connection.
David,
This might be the solution to one of the 'must-fix' bugs for the
networking, which nobody so far was quite able to track down.
- James
--
James Morris
<jmorris@intercode.com.au>
next prev parent reply other threads:[~2003-06-04 0:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-03 15:52 David Mosberger
2003-06-03 17:41 ` Martin Josefsson
2003-06-03 18:45 ` David Mosberger
2003-06-04 0:24 ` James Morris [this message]
2003-06-04 0:43 ` kuznet
2003-06-04 2:01 ` Nivedita Singhvi
2003-06-04 3:23 ` David S. Miller
2003-06-04 4:35 ` David Mosberger
2003-06-04 4:40 ` Nivedita Singhvi
2003-06-04 5:34 ` David Mosberger
2003-06-04 5:52 ` David S. Miller
2003-06-04 6:12 ` David Mosberger
2003-06-04 6:04 ` Nivedita Singhvi
2003-06-04 6:19 ` David Mosberger
2003-06-04 7:51 ` David S. Miller
2003-06-04 7:21 ` test mail panchi
2003-06-04 4:47 ` fix TCP roundtrip time update code David S. Miller
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