netdev - Re: Telnet closing delay

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 2 May 2007 13:19:52 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Beschorner Daniel <Daniel.Beschorner@...ton.com>
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.

-- 
	Evgeniy Polyakov
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html