From owner-freebsd-current Sun Feb 17 15:48:34 2002 Delivered-To: freebsd-current@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by hub.freebsd.org (Postfix) with ESMTP id 0B08D37B405; Sun, 17 Feb 2002 15:48:31 -0800 (PST) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.11.6/8.11.6) with ESMTP id g1HNjTN28246; Mon, 18 Feb 2002 00:45:29 +0100 (CET) (envelope-from phk@critter.freebsd.dk) To: Matthew Dillon Cc: Michael Smith , Bruce Evans , freebsd-current@FreeBSD.ORG Subject: Re: ACPI timer is screwed... (was Re: 'microuptime() went backwards ...' using ACPI timer. Shouldn't that be impossible? ) In-Reply-To: Your message of "Sun, 17 Feb 2002 15:18:01 PST." <200202172318.g1HNI1I02804@apollo.backplane.com> Date: Mon, 18 Feb 2002 00:45:29 +0100 Message-ID: <28244.1013989529@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <200202172318.g1HNI1I02804@apollo.backplane.com>, Matthew Dillon wri tes: > >:I would like to see "the PIIX problem" caught on camera, personally. >:We're aware of one errata for it already, and we work around it. If >:there's another problem, or ideally if someone has some relatively quick >:code to test it, that would be much better. > > Holy shit. We are screwed. It's a free-running counter with NO > synchronization whatsoever. None. Zip. Zero. Yes, there is an errata for just that on early chipsets. Does the ..._slow patch I sent work for you ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message