Re: 2.6.10 TCP troubles -- suggested patch

["David S. Miller" <davem@xxxxxxxxxxxxx>]

On Sat, 12 Feb 2005 23:03:18 +0300
Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx> wrote:

> Actually, that anti-MacOS never worked well. If segment with forced PSH
> was not transmitted in time, even forced PSHs could be deleted.
> Your patch with setting PSH right before (or in) tcp_transmit_skb() must
> work. Unless these segments are not tso.

Yes, it never did work well.  But now we understand more deeply the
nature of this beast, we can probably refine it.

In short, for properly working TCP stream with no drops and no
reordering, Darwin delays ACKs until delack timer fires or PSH
is seen :-)