From owner-freebsd-current@FreeBSD.ORG Mon Sep 20 17:48:02 2004 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 D8F8716A4CE; Mon, 20 Sep 2004 17:48:02 +0000 (GMT) Received: from exchange.sandvine.com (sandvine.com [199.243.201.138]) by mx1.FreeBSD.org (Postfix) with ESMTP id 757D943D53; Mon, 20 Sep 2004 17:48:02 +0000 (GMT) (envelope-from ahoff@sandvine.com) X-MimeOLE: Produced By Microsoft Exchange V6.0.6556.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Mon, 20 Sep 2004 13:48:00 -0400 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: panic: pmap_enter: attempted pmap_enter on 4MB page Thread-Index: AcSfOfhFjxClP4FQTBWlOdmXrjhYlg== From: "Alex Hoff" To: cc: alc@freebsd.org cc: Gerrit Nagelhout cc: tegge@FreeBSD.org Subject: panic: 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: Mon, 20 Sep 2004 17:48:03 -0000 Hello,=20 Ive talked to a few people about this crash already, but I might as well = get a discussion going. Running 5.3 beta 4 (as of Sunday) with Postgress = 7.4.2 running on it under heavy load will run into "panic: pmap_enter: = attempted pmap_enter on 4MB page". The machine we are running on is a = dual xeon 2.8 ghz w/ HyperThreading off, 4 gigs of ram and a 980G RAID5 = setup. Using a small database with a total of 100 clients, 80 doing = updates and 20 doing queries via tcl (db + clients on the same machine), = it runs until fills up 4gigs of ram, then 4 gigs of swap, then we kill = it cleanly rc.d script stop)