From owner-freebsd-current@FreeBSD.ORG Mon Aug 23 11:57:20 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 307B516A4CE for ; Mon, 23 Aug 2004 11:57:20 +0000 (GMT) Received: from smtp004.bizmail.sc5.yahoo.com (smtp004.bizmail.sc5.yahoo.com [66.163.175.81]) by mx1.FreeBSD.org (Postfix) with SMTP id 0DA8143D4C for ; Mon, 23 Aug 2004 11:57:20 +0000 (GMT) (envelope-from noackjr@alumni.rice.edu) Received: from unknown (HELO optimator.noacks.org) (noackjr@supercrime.org@70.240.199.245 with login) by smtp004.bizmail.sc5.yahoo.com with SMTP; 23 Aug 2004 11:57:19 -0000 Received: from localhost (localhost [127.0.0.1]) by optimator.noacks.org (Postfix) with ESMTP id ABAFF61D4; Mon, 23 Aug 2004 06:57:18 -0500 (CDT) Received: from optimator.noacks.org ([127.0.0.1]) by localhost (optimator.noacks.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 53488-02; Mon, 23 Aug 2004 06:57:17 -0500 (CDT) Received: from compgeek.noacks.org (compgeek [192.168.1.10]) by optimator.noacks.org (Postfix) with ESMTP id 857566193; Mon, 23 Aug 2004 06:57:17 -0500 (CDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by compgeek.noacks.org (8.13.1/8.13.1) with ESMTP id i7NBvEop042753; Mon, 23 Aug 2004 06:57:15 -0500 (CDT) (envelope-from noackjr@alumni.rice.edu) Message-ID: <4129DB9A.4020201@alumni.rice.edu> Date: Mon, 23 Aug 2004 06:57:14 -0500 From: Jon Noack User-Agent: Mozilla Thunderbird 0.7.3 (X11/20040806) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Doug White References: <20040822115345.Y94593@carver.gumbysoft.com> In-Reply-To: <20040822115345.Y94593@carver.gumbysoft.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at noacks.org cc: freebsd-current@freebsd.org Subject: Re: PLEASE TEST: IPI deadlock avoidance patch X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: noackjr@alumni.rice.edu List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Aug 2004 11:57:20 -0000 On 08/22/04 14:05, Doug White wrote: > If you have a reasonably fast i386 or amd64 multiprocessor and/or > hyperthreading machine and are experiencing reproducible hangs during -j > buildwords and other highly parallel operations, please try this patch: > > http://people.freebsd.org/~dwhite/smp_rv_mtx.patch To add to the growing list of accolades for this patch, my dual Pentium 3 survived a -j8 buildworld while serving out a heavy NFS load. Previously it could not even survive a -j4 buildworld. This was with ULE and RELENG_5. Thanks for tracking this down! Jon