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Re: Problems with parsing tcp options on linux 2.2 and 2.4-pre

To: Pasi Sarolahti <sarolaht@xxxxxxxxxxxxxx>
Subject: Re: Problems with parsing tcp options on linux 2.2 and 2.4-pre
From: Andi Kleen <ak@xxxxxx>
Date: Tue, 4 Jul 2000 15:11:22 +0200
Cc: netdev@xxxxxxxxxxx
In-reply-to: <3961AA34.92CD9E98@cs.helsinki.fi>; from Pasi Sarolahti on Tue, Jul 04, 2000 at 11:12:39AM +0200
References: <3961AA34.92CD9E98@cs.helsinki.fi>
Sender: owner-netdev@xxxxxxxxxxx
On Tue, Jul 04, 2000 at 11:12:39AM +0200, Pasi Sarolahti wrote:
> 
> After a couple of printk - enhanced rounds I did a simple test
> commenting out the following in tcp_fast_parse_options():
> 
> /* If we didn't send out any options ignore them all. */
>         if (tp->tcp_header_len == sizeof(struct tcphdr))
>                 return 0;
> 
> After this SACK started working nicely. Are we facing a bug or do I have
> some kind of misunderstanding here?

Yes, it is a long standing bug that is fixed in 2.2.17pre9


-Andi

-- 
This is like TV. I don't like TV.

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