From owner-svn-src-head@FreeBSD.ORG Thu Jun 11 14:22:27 2009 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0A3CB1065672; Thu, 11 Jun 2009 14:22:27 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id CFA7D8FC0C; Thu, 11 Jun 2009 14:22:26 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 8123646B35; Thu, 11 Jun 2009 10:22:26 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 73FBA8A070; Thu, 11 Jun 2009 10:22:25 -0400 (EDT) From: John Baldwin To: Jung-uk Kim Date: Thu, 11 Jun 2009 08:24:14 -0400 User-Agent: KMail/1.9.7 References: <200906102254.n5AMsK1b028497@svn.freebsd.org> In-Reply-To: <200906102254.n5AMsK1b028497@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200906110824.14659.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Thu, 11 Jun 2009 10:22:25 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r193963 - in head/sys: conf dev/acpica dev/acpica/Osd X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jun 2009 14:22:27 -0000 On Wednesday 10 June 2009 6:54:20 pm Jung-uk Kim wrote: > Author: jkim > Date: Wed Jun 10 22:54:20 2009 > New Revision: 193963 > URL: http://svn.freebsd.org/changeset/base/193963 > > Log: > Catch up with r193750 (OsdSynch.c locking changes): > > - Preallocate some memory for ACPI tasks early enough. We cannot use > malloc(9) any more because spin mutex may be held here. The reserved > memory can be tuned via debug.acpi.max_tasks tunable or ACPI_MAX_TASKS > in kernel configuration. The default is 32 tasks. > - Implement a custom taskqueue_fast to wrap the new memory allocation. > This implementation is not the fastest in the world but we are being > conservative here. I don't think you need the _acq barriers on your atomics here btw. -- John Baldwin