From owner-freebsd-stable@freebsd.org Wed Aug 12 18:20:18 2015 Return-Path: Delivered-To: freebsd-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 2E6639A084C for ; Wed, 12 Aug 2015 18:20:18 +0000 (UTC) (envelope-from dweimer@dweimer.net) Received: from webmail.dweimer.net (24-240-198-187.static.stls.mo.charter.com [24.240.198.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "www.dweimer.net", Issuer "Go Daddy Secure Certificate Authority - G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F2484D69 for ; Wed, 12 Aug 2015 18:20:17 +0000 (UTC) (envelope-from dweimer@dweimer.net) Received: from webmail.dweimer.local (webmail [192.168.5.2]) by webmail.dweimer.net (8.15.2/8.15.2) with ESMTPS id t7CI9Vvf046969 (version=TLSv1.2 cipher=DHE-RSA-CHACHA20-POLY1305 bits=256 verify=NO) for ; Wed, 12 Aug 2015 13:09:31 -0500 (CDT) (envelope-from dweimer@dweimer.net) Received: (from www@localhost) by webmail.dweimer.local (8.15.2/8.15.2/Submit) id t7CI9V7j046968; Wed, 12 Aug 2015 13:09:31 -0500 (CDT) (envelope-from dweimer@dweimer.net) X-Authentication-Warning: webmail.dweimer.local: www set sender to dweimer@dweimer.net using -f To: FreeBSD Stable Subject: Possible Error in the FreeBSD 10.2 Release Notes/Man page for TCP X-PHP-Script: www.dweimer.net/webmail/index.php for 71.86.41.122, 192.168.5.3 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 12 Aug 2015 13:09:31 -0500 From: dweimer Organization: dweimer.net Reply-To: dweimer@dweimer.net Mail-Reply-To: dweimer@dweimer.net Message-ID: <131f8a0f25200031103639e969702727@dweimer.net> X-Sender: dweimer@dweimer.net User-Agent: Roundcube Webmail/1.1.2 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2015 18:20:18 -0000 I was reading through the Release notes, and decided to enable net.inet.tcp.pmtud_blackhole_detection in my test environment. It appears that the monitoring tunable net.inet.tcp.pmtud_blackhole_min_activated is incorrectly listed. Using sysctl -a | grep net.inet.tcp.pmtud, doesn't show it as a result. The test system is running RC3 built on the 7th from revision 286391 of the https://svn.freebsd.org/base/releng/10.2 tree. root@freebsd:/usr/src # sysctl -a | grep net.inet.tcp.pmtud net.inet.tcp.pmtud_blackhole_mss: 1200 net.inet.tcp.pmtud_blackhole_failed: 0 net.inet.tcp.pmtud_blackhole_activated_min_mss: 0 net.inet.tcp.pmtud_blackhole_activated: 0 net.inet.tcp.pmtud_blackhole_detection: 1 I did confirm that the pmtud_blackhole_min_activated option is also listed in the tcp(4) man page page as well. If anyone is more familiar with this than I am can they look into seeing if there is indeed an error, or if I am missing something here. -- Thanks, Dean E. Weimer http://www.dweimer.net/