From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [Bugme-new] [Bug 18952] New: The mount of SYN retries is not equal to /proc/sys/net/ipv4/tcp_syn_retries Date: Mon, 27 Sep 2010 01:10:46 -0700 (PDT) Message-ID: <20100927.011046.45906887.davem@davemloft.net> References: <20100922020212.d2aaec57.akpm@linux-foundation.org> <20100924.200557.229751150.davem@davemloft.net> <201009271007.06705.yuri@itinteg.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: akpm@linux-foundation.org, netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, damian@tvk.rwth-aachen.de To: yuri@itinteg.net Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:45432 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752310Ab0I0IK0 (ORCPT ); Mon, 27 Sep 2010 04:10:26 -0400 In-Reply-To: <201009271007.06705.yuri@itinteg.net> Sender: netdev-owner@vger.kernel.org List-ID: From: Yuri Chislov Date: Mon, 27 Sep 2010 10:07:06 +0200 > It looks like the behavior changed in 2.6.32. 2.6.32 and up, uses some > calculation instead of a direct definition of the retries number, that makes it > harder to achieve the necessary system behavior. > > The default behavior of the system changed completely > (the old default connect timeout was ~ 180 seconds, while the new one is ~21 > sec). > > The new behavior invalidates the kernel documentation and tcp man page. > > It's not possible to set a connect timeout > 25 sec in the applications while > using the default values in /proc. > > From my view point is regression. Agreed, Damian you have to fix this. Otherwise I'm reverting all of your Revert Backoff commits.