From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: Re[2]: [Bugme-new] [Bug 16568] New: Regression and incompatibility with Windows SP2-SP3-Vista TCP stack causing lost connections Date: Thu, 12 Aug 2010 19:18:19 +0200 Message-ID: <1281633499.2494.90.camel@edumazet-laptop> References: <20100812074041.cf62b793.akpm@linux-foundation.org> <1281625773.2494.38.camel@edumazet-laptop> <68743058.20100812194607@ucoz.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Andrew Morton , netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org To: Yuriy Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:33763 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752969Ab0HLRSY (ORCPT ); Thu, 12 Aug 2010 13:18:24 -0400 Received: by eya25 with SMTP id 25so814589eya.19 for ; Thu, 12 Aug 2010 10:18:23 -0700 (PDT) In-Reply-To: <68743058.20100812194607@ucoz.com> Sender: netdev-owner@vger.kernel.org List-ID: Le jeudi 12 ao=C3=BBt 2010 =C3=A0 19:46 +0300, Yuriy a =C3=A9crit : > Thanks for reply. >=20 > Main idea that i wanted to say is just to document this feature appro= priately as internet is full of recommendations to enable it.=20 > Just few words like "do not used it on public servers" would be much = better than now. Sure, but we dont maintain nor correct the recommandations found on various Internet pages ;) BTW, a google search on "tcp_tw_recycle" gives many results on problems with this setting, not improvements. Also, many "recommandations" found on Internet suggest to disable tcp_timestamps, only because it adds 12 bytes to TCP header. Apparently you chose to follow the tcp_tw_recycle=3D1 recommandation, n= ot the tcp_timestamps=3D0 one ;)