From owner-freebsd-arch@FreeBSD.ORG  Mon Nov 24 19:15:27 2014
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: arch@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 41C373B0;
 Mon, 24 Nov 2014 19:15:27 +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 02DE22AE;
 Mon, 24 Nov 2014 19:15:27 +0000 (UTC)
Received: from [2001:470:9174:1:20:a85c:9bd2:23e4]
 by gromit.grondar.org with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256)
 (Exim 4.84 (FreeBSD)) (envelope-from <mark@grondar.org>)
 id 1Xsz6a-0002Go-7i; Mon, 24 Nov 2014 19:15:24 +0000
Subject: Re: svn commit: r274739 - head/sys/mips/conf
Mime-Version: 1.0 (Mac OS X Mail 8.1 \(1993\))
Content-Type: text/plain; charset=utf-8
From: Mark R V Murray <mark@grondar.org>
In-Reply-To: <1416841268.1147.386.camel@revolution.hippie.lan>
Date: Mon, 24 Nov 2014 19:15:22 +0000
Content-Transfer-Encoding: quoted-printable
Message-Id: <CC6B67E1-55A2-4952-AB43-5F6C787F629B@grondar.org>
References: <201411200552.sAK5qnXP063073@svn.freebsd.org>
 <20141120084832.GE24601@funkthat.com>
 <AE8F2D30-7F91-4C90-B79A-D99857D8AED8@grondar.org>
 <20141121092245.GI99957@funkthat.com>
 <1416582989.1147.250.camel@revolution.hippie.lan>
 <026FEB8A-CA8C-472F-A8E4-DA3D0AC44B34@grondar.org>
 <1416596266.1147.290.camel@revolution.hippie.lan>
 <F017033A-B761-4435-A7F8-264D2F4662A0@grondar.org>
 <1416598889.1147.297.camel@revolution.hippie.lan>
 <86egsvueqk.fsf@nine.des.no>
 <1416691274.1147.339.camel@revolution.hippie.lan>
 <398A380D-49AF-480C-8842-8835F81EF641@grondar.org>
 <1416806894.1147.362.camel@revolution.hippie.lan>
 <18B8A926-59C0-49B4-ADA3-A11688609852@grondar.org>
 <1416841268.1147.386.camel@revolution.hippie.lan>
To: Ian Lepore <ian@FreeBSD.org>
X-Mailer: Apple Mail (2.1993)
X-SA-Score: -1.0
Cc: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>, arch@freebsd.org
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-arch>,
 <mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch/>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
 <mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 24 Nov 2014 19:15:27 -0000


> On 24 Nov 2014, at 15:01, Ian Lepore <ian@FreeBSD.org> wrote:
>=20
>=20
> The logging change was pretty simple:
>=20
> Index: kern/subr_bus.c

Thanks.

> The low number of devices is pretty typical. Sometimes there'll be
> another uart.  Sometimes an i2c eeprom.

OK - a good example of a low-entropy system then.

> I have no idea what's up with the first 3 unchanging numbers, but I
> suspect a big part of the explanation for the other numbers is the =
32KHz
> clock it's getting the numbers from.  There used to be a clock running
> at about 2.8MHz, but the source code for that driver seems to have
> disappeared from FreeBSD at some point between 8.x and -current.

What really bothers me is that these should be the difference between 2 =
essentially similar numbers; times not all that far apart, yet some of =
the numbers are truly massive.

I don=E2=80=99t know how that could be the case. Its *WEIRD*. :-(

M
--=20
Mark R V Murray