On Tue, May 01, 2007 at 08:20:50PM +0400, Evgeniy Polyakov wrote:
> > http://www.kvack.org/~bcrl/ack-storm.log . As near as I can tell, a
> > similar effect can occur between two Linux boxes if the right packets get
> > reordered/dropped during connection teardown.
>
> Could you archive 24Mb file or cut more precise bits out of it?
The interesting bits are the first 10 lines.
> According to your patch, several packets with fin bit might be sent,
> including one with data. If another host does not receive fin
> retransmit, then that logic is broken, and it can not be fixed by
> duplicating fins, I would even say, that remote box should drop second
> packet with fin, while it can carry data, which will break higher
> connection logic.
The FIN hasn't been ack'd by the other side, though and yet Linux is no
longer transmitting packets with it sent. Read the beginning of the trace.
-ben
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