From owner-freebsd-stable@FreeBSD.ORG Mon Oct 20 13:24:32 2003 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6D10E16A4B3 for ; Mon, 20 Oct 2003 13:24:32 -0700 (PDT) Received: from dire.bris.ac.uk (dire.bris.ac.uk [137.222.10.60]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2BA5D43FB1 for ; Mon, 20 Oct 2003 13:24:31 -0700 (PDT) (envelope-from Jan.Grant@bristol.ac.uk) Received: from mail.ilrt.bris.ac.uk by dire.bris.ac.uk with SMTP-PRIV with ESMTP; Mon, 20 Oct 2003 21:24:21 +0100 Received: from cmjg (helo=localhost) by mail.ilrt.bris.ac.uk with local-esmtp (Exim 3.16 #1) id 1ABgYU-000224-00; Mon, 20 Oct 2003 21:23:06 +0100 Date: Mon, 20 Oct 2003 21:23:06 +0100 (BST) From: Jan Grant X-X-Sender: cmjg@mail.ilrt.bris.ac.uk To: Mike Tancsa In-Reply-To: Message-ID: References: <6.0.0.22.0.20031020121053.07e575c0@209.112.4.2> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: Jan Grant cc: stable@freebsd.org Subject: Solved. Re: Expert input required: P4 odd signals, no apparent memoryfault, DISABLE_PSE? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Oct 2003 20:24:32 -0000 On Mon, 20 Oct 2003, Jan Grant wrote: > On Mon, 20 Oct 2003, Mike Tancsa wrote: > > > How recent is your copy of RELENG_4 ? The PSE disable code was committed > > to the tree already as well as a fix so it would work with APM on the > > 17th. By default it is disabled. If you look at your dmesg.boot you > > should see > > Warning: Pentium 4 CPU: PSE disabled > > Latest was pre-weekend; I'm just completing a fresh build now, so I hope > this'll lick the problem, thanks. (Incidentally this might well be worth > documenting in UPDATING since it's an issue that's been plaguing me [and > a few correspondents, according to emails I've had] for a while.) Well, I'm pleased to report what looks like success: as Mike indicated, PSE is now disabled automatically by default. I've tried repeating the activities which have recently been triggering memory corruption - so far with no ill effects. I'll keep the stress tests running overnight. -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/ "I think therefore I am." -- Ronnie Descartes