From owner-svn-src-head@FreeBSD.ORG Sat Apr 21 17:12:29 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 175E0106566C; Sat, 21 Apr 2012 17:12:29 +0000 (UTC) (envelope-from brooks@lor.one-eyed-alien.net) Received: from lor.one-eyed-alien.net (lor.one-eyed-alien.net [69.66.77.232]) by mx1.freebsd.org (Postfix) with ESMTP id 53BFF8FC0C; Sat, 21 Apr 2012 17:12:28 +0000 (UTC) Received: from lor.one-eyed-alien.net (localhost [127.0.0.1]) by lor.one-eyed-alien.net (8.14.4/8.14.4) with ESMTP id q3LHBSA9006798; Sat, 21 Apr 2012 12:11:28 -0500 (CDT) (envelope-from brooks@lor.one-eyed-alien.net) Received: (from brooks@localhost) by lor.one-eyed-alien.net (8.14.4/8.14.4/Submit) id q3LHBS2G006797; Sat, 21 Apr 2012 12:11:28 -0500 (CDT) (envelope-from brooks) Date: Sat, 21 Apr 2012 12:11:28 -0500 From: Brooks Davis To: Ryan Stone Message-ID: <20120421171128.GA6732@lor.one-eyed-alien.net> References: <201204202137.q3KLbhNj056524@svn.freebsd.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qDbXVdCdHGoSgWSk" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, Brooks Davis , src-committers@freebsd.org Subject: Re: svn commit: r234504 - in head/sys: amd64/conf i386/conf X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 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: Sat, 21 Apr 2012 17:12:29 -0000 --qDbXVdCdHGoSgWSk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Apr 21, 2012 at 09:45:57AM -0400, Ryan Stone wrote: > On Fri, Apr 20, 2012 at 5:37 PM, Brooks Davis wrote: > > Author: brooks > > Date: Fri Apr 20 21:37:42 2012 > > New Revision: 234504 > > URL: http://svn.freebsd.org/changeset/base/234504 > > > > Log: > > ?Enable DTrace hooks in GENERIC. > > > > ?Reviewed by: ?gnn > > ?Approved by: ?core (jhb, imp) > > ?Requested by: a cast of thousands > > ?MFC after: ? ?3 days >=20 > Excellent! Thanks to everybody who helped make this happen, starting > with the participants at dtrace.conf who gave us the requisite whacks > with the clue-by-four. >=20 > However, what is our policy for enabling features in -STABLE that are > known to be unstable? If we MFC this I don't have the slightest worry > that somebody might see instability in their system just because the > hooks are all of a sudden there, but I would worry that somebody make > take DTrace hooks being enabled in GENERIC on -STABLE to imply that > DTrace is stable, start using it and being upset when they trip over a > DTrace bug. I think we should note that it remains experimental and somewhat buggy in the release notes and probably in the MFC message. Otherwise, it's like any new feature. If you start using a feature in production without extensive testing you may be surprised. -- Brooks --qDbXVdCdHGoSgWSk Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iD8DBQFPkupAXY6L6fI4GtQRAp6AAKDfxTtcg3ISY8O1rzYVWuB2IJUYaACg4eX/ ogB6kG/7Nb593sYAuzSxQ6g= =xdrF -----END PGP SIGNATURE----- --qDbXVdCdHGoSgWSk--