[Linux-ia64] Re: fix TCP roundtrip time update code

From: James Morris <jmorris_at_intercode.com.au>
Date: 2003-06-04 10:24:14
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>
Received on Tue Jun 03 17:26:17 2003

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