From owner-cvs-src@FreeBSD.ORG  Sun May  2 04:20:52 2004
Return-Path: <owner-cvs-src@FreeBSD.ORG>
Delivered-To: cvs-src@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 6FA8616A4CF; Sun,  2 May 2004 04:20:52 -0700 (PDT)
Received: from mailout2.pacific.net.au (mailout2.pacific.net.au [61.8.0.85])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id DAD9E43D31; Sun,  2 May 2004 04:20:51 -0700 (PDT)
	(envelope-from bde@zeta.org.au)
Received: from mailproxy1.pacific.net.au (mailproxy1.pacific.net.au
	[61.8.0.86])i42BKo5v010496;	Sun, 2 May 2004 21:20:50 +1000
Received: from gamplex.bde.org (katana.zip.com.au [61.8.7.246])
	i42BKkI2011676;	Sun, 2 May 2004 21:20:47 +1000
Date: Sun, 2 May 2004 21:20:45 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
X-X-Sender: bde@gamplex.bde.org
To: Mike Silbersack <silby@silby.com>
In-Reply-To: <20040501184603.I1080@odysseus.silby.com>
Message-ID: <20040502211748.X649@gamplex.bde.org>
References: <200404272003.i3RK3RFZ048001@repoman.freebsd.org>
	<20040430221434.J749@odysseus.silby.com>
	<20040501044209.L704@odysseus.silby.com>
	<20040501184603.I1080@odysseus.silby.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
cc: cvs-src@freebsd.org
cc: src-committers@freebsd.org
cc: cvs-all@freebsd.org
Subject: Re: cvs commit: src/sys/i386/isa clock.c
X-BeenThere: cvs-src@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: CVS commit messages for the src tree <cvs-src.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src>
List-Post: <mailto:cvs-src@freebsd.org>
List-Help: <mailto:cvs-src-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src>,
	<mailto:cvs-src-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 02 May 2004 11:20:52 -0000

On Sat, 1 May 2004, Mike Silbersack wrote:

> On Sat, 1 May 2004, Bruce Evans wrote:
> > HZ=1000 instead of the default of HZ=10 increases the chance of the
> > timer wrapping while DELAY() is interrupted.  This shouldn't be a
> > problem for TSC calibration.
>
> Apparently it is a problem, somehow. :)

I checked that CPU interruptes are disabled here.  They still are.  So
the calibration can't be interrupted by a maskable interrupt.

Bruce