From owner-freebsd-questions Tue Dec 3 8: 0:19 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 595C637B401 for ; Tue, 3 Dec 2002 08:00:18 -0800 (PST) Received: from topher.gintera.net (topher.gintera.net [64.81.97.41]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6FECC43EC2 for ; Tue, 3 Dec 2002 08:00:17 -0800 (PST) (envelope-from rbg@gayteenresource.org) Received: from topher.gintera.net (chris@localhost [127.0.0.1]) by topher.gintera.net (8.12.6/8.12.6) with SMTP id gB3G0cTZ075016; Tue, 3 Dec 2002 09:00:38 -0700 (MST) (envelope-from rbg@gayteenresource.org) Date: Tue, 3 Dec 2002 09:00:37 -0700 From: Christopher Rosado To: FreeBSD-Questions Cc: Bertrand Habib Subject: Re: microuptime went backwards ?? Message-Id: <20021203090037.46f67b1f.rbg@gayteenresource.org> In-Reply-To: <5.1.1.6.2.20021203163612.02025f98@mail.infomaniak.ch> References: <5.1.1.6.2.20021203163612.02025f98@mail.infomaniak.ch> X-Mailer: Sylpheed version 0.8.6claws48 (GTK+ 1.2.10; ) X-Operating-System: FreeBSD 4.7-RELEASE-p2 X-Message-Flag: 0x2b2b2b415448300d Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, 03 Dec 2002 16:49:48 -0800 Bertrand Habib wrote: BH> Dear all, BH> BH> writing on ata disk, i get full screens of BH> "microuptime() went backwards ( nnn.nnnnnn -> mmm.mmmmm )" Sounds like an AMD Athlon. BH> with mmm.mmmmm being less than nnn.nnnnn (i.e backwards ) BH> Broken hardware ? BH> Wo may help me to interpret this message and, eventualy, correct that BH> issue ? Disable power management in your BIOS. Also, I recommend disabling it in the kernel as well. I had this exact same problem last year, and had to do that. I don't recall if it absolutely had to be disabled in the kernel or if I did that just to be on the safe side, but do it just to be on the safe side :) Comment out "Device apm0" in your kernel config (here's the relevant bit from my config) # Power management support (see LINT for more options) # device apm0 at nexus? disable flags 0x20 # Advanced Power Management # Disable due to microuptime() issue last year -- Christopher Rosado To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message