From owner-freebsd-current@FreeBSD.ORG Fri Jan 20 10:46:25 2006 Return-Path: X-Original-To: current@freebsd.org 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 9EA9116A41F for ; Fri, 20 Jan 2006 10:46:25 +0000 (GMT) (envelope-from pyunyh@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id B91BB43D48 for ; Fri, 20 Jan 2006 10:46:24 +0000 (GMT) (envelope-from pyunyh@gmail.com) Received: by zproxy.gmail.com with SMTP id 8so428625nzo for ; Fri, 20 Jan 2006 02:46:24 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:date:from:to:cc:subject:message-id:reply-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=tfgLjBl3vnA++ixNoZ9NsOntNllCrNjOEfClZWMjAUkjlWk2QP8Qj0ynE0IiW32VXEcUSx4KPq/1smcOArQLD+hKWwUgCkXePfR/fX3AzYL5rrU+3K2z8kBA4Gc4xVw7YmU8IaGiwuTrHjaeotMbX5Twi9hGFeGHLt2pJPuwuIU= Received: by 10.37.2.79 with SMTP id e79mr1329014nzi; Fri, 20 Jan 2006 02:46:24 -0800 (PST) Received: from michelle.rndsoft.co.kr ( [211.32.202.217]) by mx.gmail.com with ESMTP id 34sm1825565nza.2006.01.20.02.46.22; Fri, 20 Jan 2006 02:46:24 -0800 (PST) Received: from michelle.rndsoft.co.kr (localhost.rndsoft.co.kr [127.0.0.1]) by michelle.rndsoft.co.kr (8.13.5/8.13.5) with ESMTP id k0KAlcUb050494 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 20 Jan 2006 19:47:38 +0900 (KST) (envelope-from pyunyh@gmail.com) Received: (from yongari@localhost) by michelle.rndsoft.co.kr (8.13.5/8.13.5/Submit) id k0KAlbUp050493; Fri, 20 Jan 2006 19:47:37 +0900 (KST) (envelope-from pyunyh@gmail.com) Date: Fri, 20 Jan 2006 19:47:37 +0900 From: Pyun YongHyeon To: Robert Watson Message-ID: <20060120104737.GD48366@rndsoft.co.kr> References: <20060120051810.GB48366@rndsoft.co.kr> <20060120101241.O52145@fledge.watson.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060120101241.O52145@fledge.watson.org> User-Agent: Mutt/1.4.2.1i Cc: current@FreeBSD.org Subject: Re: mbuf cluster leak on CURRENT? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Jan 2006 10:46:25 -0000 On Fri, Jan 20, 2006 at 10:28:02AM +0000, Robert Watson wrote: > > On Fri, 20 Jan 2006, Pyun YongHyeon wrote: > > >While fixing sk(4) driver issues I'm seeing these mbuf cluster leaks on > >sparc64/i386. Both machines are SMP. > > There is at least one known problem with MBUMA's handling of allocating and > freeing {mbuf,cluster} pairs, and it is triggered frequently by recent > changes to cluster allocation. We need to fix this problem before 7.0, but > I've been on vacation for the last month and not had a chance to dig in. I > hope to address it this spring, but it requires significantly re-thinking > of how UMA interacts with mbufs. Probably not a huge code change, but will > have to be carefully thought out. > > Robert N M Watson > Thank you for the info. I look forward to seeing your fix. -- Regards, Pyun YongHyeon