From owner-svn-src-stable@freebsd.org Mon Dec 28 03:32:00 2015 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 87EF7A4DDDF for ; Mon, 28 Dec 2015 03:32:00 +0000 (UTC) (envelope-from mailing-machine@vniz.net) Received: from mail-lf0-f42.google.com (mail-lf0-f42.google.com [209.85.215.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1CD431631 for ; Mon, 28 Dec 2015 03:31:59 +0000 (UTC) (envelope-from mailing-machine@vniz.net) Received: by mail-lf0-f42.google.com with SMTP id c192so16078106lfe.2 for ; Sun, 27 Dec 2015 19:31:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-type :content-transfer-encoding; bh=AFSA7EmaPpr1+27fyUJB8IrUvyq7Iz8MaiR/MPuKq3A=; b=fSvadcdLyRvfNz7a8S2eTTLfakLRaafGe40YP0zf1oOaTwpNndD9wEpGTsHt+ufX7E Eh9dO0ZuUM5oEdAsV0+avcEQrBqhphrvCowsIH9dVZ5H9k3rrbpocjYDMyEMf+RN/Jij Zn/6zp9TXYsW4u7MmFe1UOaMJPIfGrnBbFVRb5WP+A5fa3xGTQ5mUQ3gmbYsN3T41bUh HAzu2kMxWtOz2LxkQV6muXIJMkOQFY6L0reZw2pxjMv0lkr0l/7UIHQDG1PgnkDUP26U HxS6Y56VMTwJXYmHaXNDnOJc+x3J37+21hphYz20Y953R7Yz/1I+N5w2DY7zI+7VmbTc aKRQ== X-Gm-Message-State: ALoCoQlsdNPpYrwYlJmUmUV9vKpCm9AhhoTKONPDb2MG/tWfCXealWwAmNfIOgVKMsAluPalKCFaV6bNW6XvUzVqwEajmz2vog== X-Received: by 10.25.213.134 with SMTP id m128mr14943186lfg.87.1451273174895; Sun, 27 Dec 2015 19:26:14 -0800 (PST) Received: from [192.168.1.2] ([89.169.173.68]) by smtp.gmail.com with ESMTPSA id m21sm3432031lfe.29.2015.12.27.19.26.14 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 27 Dec 2015 19:26:14 -0800 (PST) Subject: Re: svn commit: r292823 - in stable/10/sys: conf netinet To: Patrick Kelsey References: <201512280243.tBS2hD7X008202@repo.freebsd.org> <5680A574.9050002@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org From: Andrey Chernov Message-ID: <5680ABD5.7030206@freebsd.org> Date: Mon, 28 Dec 2015 06:26:13 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Dec 2015 03:32:00 -0000 On 28.12.2015 6:15, Patrick Kelsey wrote: > This is explained in the top comment in sys/netinet/tcp_fastopen.c, but > I will repeat it here and elaborate a little. It is disabled by default > in the kernel build as a conservative measure until it is exercised more > widely, given the modifications it introduces to the TCP state machine > code, syncache code, etc. When you do enable it in the kernel build > (and after some point in the future when it is enabled by default), > there is still a sysctl that governs its availability in the system that > must be enabled before it can be used. > > -Patrick Thanx, if I understand it correctly, is not ready for real use yet but just for experiments. See my other comment about TCP_RFC7413_MAX_KEYS -- http://ache.vniz.net/