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Re: linux to solaris tcp issues on WAN

To: kuznet@xxxxxxxxxxxxx
Subject: Re: linux to solaris tcp issues on WAN
From: Andi Kleen <ak@xxxxxx>
Date: Sat, 2 Dec 2000 15:39:44 +0100
Cc: Pekka Pietikainen <pp@xxxxxxxxx>, netdev@xxxxxxxxxxx
In-reply-to: <200012011905.WAA14357@xxxxxxxxxxxxx>; from kuznet@xxxxxxxxxxxxx on Fri, Dec 01, 2000 at 08:07:06PM +0100
References: <20001127123108.A7599@xxxxxxxxx> <200012011905.WAA14357@xxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
On Fri, Dec 01, 2000 at 08:07:06PM +0100, A.N.Kuznetsov wrote:
> Could you check this with 2.2?
> 
> In fact the fix is very simple: in tcp_clean_rtx_queue() use __s32
> for seq_rtt, intialize it to something negative and update only
> when it is negative, so that only the first segemnt is used for sampling.
> Can you make it yourself? (I do not have any 2.2 tree right now.)

Although that is surely right I doubt it'll fix that problem -- the trace
uses timestamps and the seq_rtt from clean_rtx_queue is not used when
a timestamp is available.


-Andi

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