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From: Andi Kleen <ak@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Client receives TCP packets but does not ACK
Date: 17 Jun 2001 22:21:27 +0200	[thread overview]
Message-ID: <oupd782rh6g.fsf@pigdrop.muc.suse.de> (raw)
In-Reply-To: <E15BiHy-0002xC-00@the-village.bc.nu.suse.lists.linux.kernel>
In-Reply-To: Alan Cox's message of "17 Jun 2001 21:39:32 +0200"

Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> > > Specifically
> > > 1.	If the receiver closes and there is unread data many TCP's forget
> > > 	to RST the sender to indicate that data was lost.
> > 
> > Do at least FreeBSD, Solaris and NT sent RST correctly?
> 
> I dont believe so

There is also a different bug in Linux that makes the application not notice
errors. When it does a close() and an error occurs while flushing buffered
data and doing the FIN handshake it is not returned by close() (no matter
if linger time hits or not). Most transaction applications like SMTP fortunately 
use an own ACKing protocol, which works around that.

-Andi

       reply	other threads:[~2001-06-17 20:21 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E15BiHy-0002xC-00@the-village.bc.nu.suse.lists.linux.kernel>
2001-06-17 20:21 ` Andi Kleen [this message]
2001-07-01 21:27 Nivedita Singhvi
2001-07-11  3:43 ` Robert Kleemann
  -- strict thread matches above, loose matches on Subject: below --
2001-06-15 12:53 Heusden, Folkert van
2001-06-15 18:27 ` Mike Black
2001-06-15 18:39   ` Gérard Roudier
2001-06-15 19:12   ` Alan Cox
2001-06-17 18:17     ` Pavel Machek
2001-06-17 19:32       ` Alan Cox
2001-06-17 19:40       ` Dan Podeanu
     [not found]         ` <200106172113.f5HLDhJ377473@saturn.cs.uml.edu>
2001-06-17 22:09           ` Dan Podeanu
2001-06-17 22:35         ` dean gaudet
2001-06-18 11:50 ` Jan Hudec
2001-06-18 16:17   ` dean gaudet
2001-06-18 16:48     ` Jonathan Morton
2001-06-18 22:30       ` dean gaudet
2001-06-18 23:43         ` Jonathan Morton
2001-06-19  2:46           ` dean gaudet
2001-06-20 21:01   ` David Schwartz
     [not found] <Pine.LNX.4.33.0106121720310.1152-100000@localhost.localdomain.suse.lists.linux.kernel>
2001-06-13  8:48 ` Andi Kleen
2001-06-13 16:09   ` Robert Kleemann
2001-06-13  0:26 Robert Kleemann
2001-06-15  3:50 ` Robert Kleemann
2001-06-15 12:44   ` Mike Black
2001-06-15 18:29     ` Albert D. Cahalan
2001-06-15 23:10       ` Robert Kleemann
2001-06-16 11:55       ` Mike Black
2001-06-16 23:56 ` Robert Kleemann
2001-06-27  1:04   ` Robert Kleemann

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