From owner-freebsd-current@FreeBSD.ORG Tue Oct 14 18:57:17 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CE37116A4B3 for ; Tue, 14 Oct 2003 18:57:17 -0700 (PDT) Received: from pit.databus.com (p70-227.acedsl.com [66.114.70.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id DE4EA43FAF for ; Tue, 14 Oct 2003 18:57:16 -0700 (PDT) (envelope-from barney@pit.databus.com) Received: from pit.databus.com (localhost [127.0.0.1]) by pit.databus.com (8.12.9p2/8.12.9) with ESMTP id h9F1vCax086110 for ; Tue, 14 Oct 2003 21:57:12 -0400 (EDT) (envelope-from barney@pit.databus.com) Received: (from barney@localhost) by pit.databus.com (8.12.9p2/8.12.9/Submit) id h9F1vCD4086109 for current@freebsd.org; Tue, 14 Oct 2003 21:57:12 -0400 (EDT) (envelope-from barney) Date: Tue, 14 Oct 2003 21:57:12 -0400 From: Barney Wolff To: current@freebsd.org Message-ID: <20031015015712.GA85828@pit.databus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i X-Scanned-By: MIMEDefang 2.37 Subject: "pmap_enter: attempted pmap_enter on 4MB page X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Oct 2003 01:57:17 -0000 I've been getting subject panics lately. A sure way to provoke them is to portupgrade -ap. Sooner or later, panic. With the latest build: FreeBSD lab.databus.com 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Tue Oct 14 01:41:23 EDT 2003 it seemed to last longer (almost 30 min!) before failing. HW is Asus A7M266-D with 2xAthlon 2200+, 1GB, Adaptec 39160, 2x10k disks, em0, fxp0. I have (with a slightly older build) tried DISABLE_PSE and DISABLE_PG_G with no visible effect. I believe this started about 10/4/03, but the first few panics were "PTE vanished". With builds in the last couple of days, the panic changed to the "4MB page" one. I cannot rule out hardware, since this system has also lately been getting sig11's on buildworld - but mbmon shows no excessive temp and sensible rpms & volts. Before 10/4, this system was rock solid. One oddity is that I can't get a UP kernel to boot - possibly because the bios is set to apic interrupts. If needed, I can make it happen again and get a traceback, or build an older kernel. I've been hoping for a magical fix, without success so far. Thanks for any advice, Barney