From owner-cvs-all@FreeBSD.ORG Fri Feb 4 10:10:36 2005 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1AF5716A4CE; Fri, 4 Feb 2005 10:10:36 +0000 (GMT) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11]) by mx1.FreeBSD.org (Postfix) with SMTP id 8C58343D45; Fri, 4 Feb 2005 10:10:34 +0000 (GMT) (envelope-from dwmalone@maths.tcd.ie) Received: from walton.maths.tcd.ie by salmon.maths.tcd.ie with SMTP id ; 4 Feb 2005 10:10:33 +0000 (GMT) Date: Fri, 4 Feb 2005 10:10:33 +0000 From: David Malone To: John Baldwin Message-ID: <20050204101033.GA35920@walton.maths.tcd.ie> References: <200502031906.j13J63fl055269@repoman.freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200502031906.j13J63fl055269@repoman.freebsd.org> User-Agent: Mutt/1.5.6i Sender: dwmalone@maths.tcd.ie 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-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Feb 2005 10:10:36 -0000 On Thu, Feb 03, 2005 at 07:06:03PM +0000, John Baldwin wrote: > Log: > Anytime we write to the RTC's status B register to possibly enable > interrupts, read from the interrupt status register to clear any pending > interrupts. Otherwise in some rare cases the RTC would never fire any > interrupts as it constantly thinks it has an interrupt pending. Do you think there's any link between this and the occasional problems people have reported over the years where the RTC stops firing and they stop getting CPU usage stats? David.