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Re: fix TCP roundtrip time update code

To: Nivedita Singhvi <niv@xxxxxxxxxx>
Subject: Re: fix TCP roundtrip time update code
From: David Mosberger <davidm@xxxxxxxxxxxxxxxxx>
Date: Tue, 3 Jun 2003 23:19:31 -0700
Cc: davidm@xxxxxxxxxx, "David S. Miller" <davem@xxxxxxxxxx>, kuznet@xxxxxxxxxxxxx, jmorris@xxxxxxxxxxxxxxxx, gandalf@xxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx, akpm@xxxxxxxxx
In-reply-to: <3EDD8BD2.9040008@us.ibm.com>
References: <200306040043.EAA24505@dub.inr.ac.ru> <3EDD52F5.8090706@us.ibm.com> <20030603.202320.59680883.davem@redhat.com> <16093.30507.661714.676184@napali.hpl.hp.com> <3EDD7832.7010804@us.ibm.com> <16093.34022.445246.52398@napali.hpl.hp.com> <3EDD8BD2.9040008@us.ibm.com>
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>>>>> On Tue, 03 Jun 2003 23:04:02 -0700, Nivedita Singhvi <niv@xxxxxxxxxx> 
>>>>> said:

  Nivedita> Those should be TCPAbortOnTimeout counts, rather than
  Nivedita> TCPAbortFailed errors, I would expect? Why AbortFailed?
  Nivedita> Coming from IP via tcp_transmit_skb()?

Yes, the "connection hangs/disappearances" where triggered by
TCPAbortOnTimeout; the TCPAbortFailed errors were indicating that
tcp_transmit_skb() had failed, i.e., the tx queue was overrun (that's
were the losses came from).

        --david

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