From owner-svn-src-head@FreeBSD.ORG Tue Oct 23 16:33:44 2012 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4B768C94; Tue, 23 Oct 2012 16:33:44 +0000 (UTC) (envelope-from andre@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 326B18FC08; Tue, 23 Oct 2012 16:33:44 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.4/8.14.4) with ESMTP id q9NGXiNq010299; Tue, 23 Oct 2012 16:33:44 GMT (envelope-from andre@svn.freebsd.org) Received: (from andre@localhost) by svn.freebsd.org (8.14.4/8.14.4/Submit) id q9NGXhIX010297; Tue, 23 Oct 2012 16:33:43 GMT (envelope-from andre@svn.freebsd.org) Message-Id: <201210231633.q9NGXhIX010297@svn.freebsd.org> From: Andre Oppermann Date: Tue, 23 Oct 2012 16:33:43 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r241955 - head X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2012 16:33:44 -0000 Author: andre Date: Tue Oct 23 16:33:43 2012 New Revision: 241955 URL: http://svn.freebsd.org/changeset/base/241955 Log: Note the removal of the ZERO_COPY_SOCKETS kernel option in r241931 and provide a proper explanation. Modified: head/UPDATING Modified: head/UPDATING ============================================================================== --- head/UPDATING Tue Oct 23 16:12:17 2012 (r241954) +++ head/UPDATING Tue Oct 23 16:33:43 2012 (r241955) @@ -25,6 +25,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 20121023: + The ZERO_COPY_SOCKET kernel option has been removed and + split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. + NB: SOCKET_SEND_COW uses the VM page based copy-on-write + mechanism which is not safe and may result in kernel crashes. + NB: The SOCKET_RECV_PFLIP mechanism is useless as no current + driver supports disposeable external page sized mbuf storage. + Proper replacements for both zero-copy mechanisms are under + consideration and will eventually lead to complete removal + of the two kernel options. + +20121023: The IPv4 network stack has been converted to network byte order. The following modules need to be recompiled together with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4),