netdev - Re: Telnet closing delay

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Message-ID: <3C59DB883F7B0B4D8096010D45ACCD134F21C0@exch.facton.local>
Date:	Thu, 3 Apr 2008 11:32:14 +0200
From:	"Beschorner Daniel" <Daniel.Beschorner@...ton.com>
To:	"Evgeniy Polyakov" <johnpol@....mipt.ru>
Cc:	<netdev@...r.kernel.org>
Subject: Re: Telnet closing delay

> On Tue, May 01, 2007 at 10:48:11PM +0200, Beschorner Daniel
(Daniel.Beschorner@...ton.com) wrote:
>> Since 2.6.21 I often got a 2 seconds delay when closing a telnet
session
>> to such a machine (even to localhost).
>> I was at least not aware of this with older versions, but maybe I'm
>> wrong?!?
>> Server with delay:
>> 
>> 0.000095 select(4, [0 3], [], [0], NULL) = 1 (in [3])
>> 0.001779 read(3, 0x8059de0, 8192)  = -1 EIO (Input/output error)

> Hmm, does not it supposed to stop doing such things on the closed
> socket and not enter 10000 select/read loop?
> Server behaves incorrectly in this scenario, why and how it can be
fixed
> is another questions better asked the author.

It must have been indeed triggered by a kernel change or bug, with
current 2.6.24.4 all works fine again.

Daniel
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