From owner-cvs-all@FreeBSD.ORG Sat Apr 29 18:36:11 2006 Return-Path: X-Original-To: cvs-all@freebsd.org Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3B3EB16A402; Sat, 29 Apr 2006 18:36:11 +0000 (UTC) (envelope-from alc@cs.rice.edu) Received: from mail.cs.rice.edu (mail.cs.rice.edu [128.42.1.31]) by mx1.FreeBSD.org (Postfix) with ESMTP id C9E2F43D45; Sat, 29 Apr 2006 18:36:08 +0000 (GMT) (envelope-from alc@cs.rice.edu) Received: from mail.cs.rice.edu (localhost.localdomain [127.0.0.1]) by mail.cs.rice.edu (Postfix) with ESMTP id 3BEE42C2ABB; Sat, 29 Apr 2006 13:36:08 -0500 (CDT) Received: from mail.cs.rice.edu ([127.0.0.1]) by mail.cs.rice.edu (mail.cs.rice.edu [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 24982-01-26; Sat, 29 Apr 2006 13:36:07 -0500 (CDT) Received: from [10.24.157.125] (72-254-45-110.client.stsn.net [72.254.45.110]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.cs.rice.edu (Postfix) with ESMTP id C98092C2AB8; Sat, 29 Apr 2006 13:36:06 -0500 (CDT) Message-ID: <4453B1E2.5060301@cs.rice.edu> Date: Sat, 29 Apr 2006 13:35:14 -0500 From: Alan Cox User-Agent: Thunderbird 1.5.0.2 (Windows/20060308) MIME-Version: 1.0 To: Kris Kennaway References: <200604281905.k3SJ59MZ008806@repoman.freebsd.org> <20060429024850.GB997@turion.vk2pj.dyndns.org> <4452FB64.7030308@root.org> <200604291021.12379.peter@wemm.org> <20060429182318.GA61575@xor.obsecurity.org> In-Reply-To: <20060429182318.GA61575@xor.obsecurity.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavis-2.2.1 at mail.cs.rice.edu Cc: src-committers@freebsd.org, Peter Wemm , Nate Lawson , cvs-all@freebsd.org, cvs-src@freebsd.org Subject: Re: cvs commit: src/sys/i386/i386 pmap.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Apr 2006 18:36:11 -0000 Kris Kennaway wrote: > On Sat, Apr 29, 2006 at 10:21:11AM -0700, Peter Wemm wrote: > > >> page of address space by unlinking the head of the ptelist. Freeing a >> page is as simple as storing it on the head. I'm running my laptop >> with that code right now. >> > > I'm running on a couple of machines too (WITNESS + INVARIANTS) under > heavy load; they've been stable, but I've not tried to determine if > the code is doing its job. > > Yesterday's patch had one problem. The vm_page_alloc() call that is only executed under low-memory conditions omits VM_PAGE_WIRED. This could cause a later panic when the page is freed. I e-mailed Peter about this yesterday. I haven't looked to see if he has fixed it yet. Alan