From owner-svn-src-all@FreeBSD.ORG Sun Nov 2 10:07:22 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 21005A0C; Sun, 2 Nov 2014 10:07:22 +0000 (UTC) Received: from gromit.grondar.org (grandfather.grondar.org [IPv6:2a01:348:0:15:5d59:5c20:0:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id DD8BF1D1; Sun, 2 Nov 2014 10:07:21 +0000 (UTC) Received: from [2001:470:9174:1:407c:4bb6:6af1:63e2] by gromit.grondar.org with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.84 (FreeBSD)) (envelope-from ) id 1Xks48-000GLr-5p; Sun, 02 Nov 2014 10:07:20 +0000 Subject: Re: svn commit: r273958 - head/sys/dev/random Mime-Version: 1.0 (Mac OS X Mail 8.0 \(1990.1\)) Content-Type: text/plain; charset=utf-8 From: Mark R V Murray In-Reply-To: <54560091.90006@freebsd.org> Date: Sun, 2 Nov 2014 10:07:19 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <1F934348-5477-455A-A910-054628B276ED@grondar.org> References: <201411020201.sA221unt091493@svn.freebsd.org> <720EB74E-094A-43F3-8B1C-47BC7F6FECC3@grondar.org> <54560091.90006@freebsd.org> To: Andrey Chernov X-Mailer: Apple Mail (2.1990.1) X-SA-Score: -1.0 Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Nov 2014 10:07:22 -0000 > On 2 Nov 2014, at 09:59, Andrey Chernov wrote: >=20 > On 02.11.2014 12:45, Mark R V Murray wrote: >> Hi DES, >>=20 >> I=E2=80=99m scared witless of this being on-by-default, for the = reason given in the removed comment. I=E2=80=99d much prefer to see it = only turned on if a kernel option is set, and the embedded folks /et al/ = can use that. >=20 > We don't need yet one kernel knob to make sysadmin life a bit more > harder. This thing needs to be autosensed somehow. F.e. if no disk > interrupts or ethernet interrupt hooks are executed, switch to = AUTOSEED > automatically (or by any other automatic way). DES=E2=80=99s change makes no difference in a Tier-1 platform, except = potentially hiding a security problem. In the embedded world Tier-2+ (MIPS/ARM) where the problem is raising = its head, customised kernels are very common indeed, and this option = gives further control to the engineer configuring the system. M --=20 Mark R V Murray