From owner-freebsd-current@FreeBSD.ORG  Mon Aug 16 19:50:08 2004
Return-Path: <owner-freebsd-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 A8C5416A4CE; Mon, 16 Aug 2004 19:50:08 +0000 (GMT)
Received: from green.homeunix.org (pcp04371970pcs.nrockv01.md.comcast.net
	[69.140.223.203])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id EC97543D5A; Mon, 16 Aug 2004 19:50:07 +0000 (GMT)
	(envelope-from green@green.homeunix.org)
Received: from green.homeunix.org (green@localhost [127.0.0.1])
	by green.homeunix.org (8.13.1/8.13.1) with ESMTP id i7GJo6pH027853;
	Mon, 16 Aug 2004 15:50:06 -0400 (EDT)
	(envelope-from green@green.homeunix.org)
Received: (from green@localhost)
	by green.homeunix.org (8.13.1/8.13.1/Submit) id i7GJo6VW027852;
	Mon, 16 Aug 2004 15:50:06 -0400 (EDT)
	(envelope-from green)
Date: Mon, 16 Aug 2004 15:50:05 -0400
From: Brian Fundakowski Feldman <green@FreeBSD.org>
To: Sergey Matveychuk <sem@FreeBSD.org>
Message-ID: <20040816195005.GN980@green.homeunix.org>
References: <20040815222946.53690.qmail@web13421.mail.yahoo.com>
	<4120EC70.9050804@FreeBSD.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4120EC70.9050804@FreeBSD.org>
User-Agent: Mutt/1.5.6i
cc: "George V. Neville-Neil" <gnn@neville-neil.com>
cc: Vitaly Markitantov <ua_vitaly@yahoo.com>
cc: current@FreeBSD.org
Subject: Re: lnc0 in VmWare doesn't work
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Aug 2004 19:50:08 -0000

On Mon, Aug 16, 2004 at 09:18:40PM +0400, Sergey Matveychuk wrote:
> Vitaly Markitantov wrote:
> 
> >I found what is the cause of problem with lnc0.
> >it's commited vm_contig.c from Thu Aug 5 14:54:12 PDT 2004 ( 
> >http://lists.freebsd.org/pipermail/cvs-src/2004-August/028854.html )
> >
> >I set in  /boot/loader.conf 
> >vm.old_contigmalloc="1"
> >and all stuff works fine.
> 
> It does not work for me. I guess if you'll rebuild your kernel with new 
> drivers it could stops work for you too.

The significant difference you should see between vm.old_contigmalloc
settings is allocation from the bottom of memory (=1) versus the
top (=0).  Is lnc(4) providing incorrect information to busdma about
what region the DMA can work in?  This sounds an awful lot like the
call to bus_dma_tag_create(9) is bogus.

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green@FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\