Date: Fri, 2 Sep 2005 10:33:56 -0400 (EDT)
From: lists@limebrokerage.com
To: John Heffner <jheffner@psc.edu>
cc: "David S. Miller" <davem@davemloft.net>, linux-net@vger.kernel.org,
       linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: Possible BUG in IPv4 TCP window handling, all recent 2.4.x/2.6.x
 kernels
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On Fri, 2 Sep 2005, John Heffner wrote:

> Have you tried increasing the size of the receive buffer yet?

Actually, I just did. I changed rmem_max and rmem_default to 4MB and 
tcp_rmem to "64k 4MB 4MB". It did seem to help, but I'm wondering if 
that's simply because it has a _lot_ of memory now to leak before it 
starts eating up into the window size.

I also ran into some very strange packet loss problems that weren't 
occurring yesterday; they only started occurring after I increased the 
buffer size. Most strange. If they happen again, I'll make sure I capture 
the flow to analyze it.

Anyway, that was just to see if I can do anything at all to mitigate the 
problem. I'll try again with smaller buffers (4k 128k 256k) and see what 
happens.

Thanks,
-Ion
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