From: "Stuart MacDonald" <stuartm@connecttech.com>
To: "'Andi Kleen'" <ak@suse.de>
Cc: <linux-kernel@vger.kernel.org>
Subject: RE: TCP stack behaviour question
Date: Mon, 18 Sep 2006 10:19:08 -0400 [thread overview]
Message-ID: <002801c6db2d$67d8a3a0$294b82ce@stuartm> (raw)
In-Reply-To: <200609181554.15820.ak@suse.de>
From: Andi Kleen [mailto:ak@suse.de]
> > # man 7 ip
> > ..
> > Note that TCP has no error queue; MSG_ERRQUEUE is
> > illegal on SOCK_STREAM sockets. Thus all errors are returned by
> > socket function return or SO_ERROR only.
> >
> > Maybe the man page is wrong? That's from my FC 3 install.
>
> The sentence is correct, but TCP has a IP_RECVERR that works
> differently without a queue. Basically it doesn't delay the error
> reporting for incoming ICMPs to the last retransmit, but reports
> them immediately. This is documented in tcp(7)
I read that too, but didn't know which one was correct, so I erred on
the side of caution and believed ip(7).
Good to know, I'll look into that. Thanks.
..Stu
next prev parent reply other threads:[~2006-09-18 14:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-15 17:28 TCP stack behaviour question Stuart MacDonald
2006-09-18 8:29 ` Andi Kleen
2006-09-18 13:20 ` Stuart MacDonald
2006-09-18 13:54 ` Andi Kleen
2006-09-18 14:19 ` Stuart MacDonald [this message]
2006-09-18 14:31 ` Andi Kleen
2006-09-18 15:38 ` Michael Kerrisk
2006-09-18 17:01 ` Stuart MacDonald
2006-09-19 6:13 ` Michael Kerrisk
2006-09-19 6:47 ` Andi Kleen
2006-09-19 14:50 ` Michael Kerrisk
2006-09-20 9:55 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2006-09-18 18:29 Stuart MacDonald
2006-09-19 12:03 ` Samuel Tardieu
2006-09-19 14:00 ` Stuart MacDonald
2006-09-20 9:54 ` Andi Kleen
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