From owner-freebsd-stable@FreeBSD.ORG  Sun Mar  1 00:19:27 2009
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 35BCD106566C
	for <freebsd-stable@freebsd.org>; Sun,  1 Mar 2009 00:19:27 +0000 (UTC)
	(envelope-from petefrench@ticketswitch.com)
Received: from constantine.ticketswitch.com (constantine.ticketswitch.com
	[IPv6:2002:57e0:1d4e:1::3])
	by mx1.freebsd.org (Postfix) with ESMTP id F005A8FC14
	for <freebsd-stable@freebsd.org>; Sun,  1 Mar 2009 00:19:26 +0000 (UTC)
	(envelope-from petefrench@ticketswitch.com)
Received: from dilbert.rattatosk ([10.64.50.6] helo=dilbert.ticketswitch.com)
	by constantine.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256)
	(Exim 4.69 (FreeBSD)) (envelope-from <petefrench@ticketswitch.com>)
	id 1LdZOq-000Mt0-0v; Sun, 01 Mar 2009 00:19:20 +0000
Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.69
	(FreeBSD)) (envelope-from <petefrench@ticketswitch.com>)
	id 1LdZOp-00085f-Vt; Sun, 01 Mar 2009 00:19:19 +0000
To: dnelson@allantgroup.com
In-Reply-To: <20090228230127.GA3465@dan.emsphone.com>
Message-Id: <E1LdZOp-00085f-Vt@dilbert.ticketswitch.com>
From: Pete French <petefrench@ticketswitch.com>
Date: Sun, 01 Mar 2009 00:19:19 +0000
Cc: freebsd-stable@freebsd.org
Subject: Re: vm_thread_new: kstack allocation failed with
	vm.kmem_size="1536M"
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 01 Mar 2009 00:19:27 -0000

> You've probably reduced kmem_size from the default.  I don't set anything on
> my 6 GB amd64 system, and I get:
>
> $ sysctl vm.kmem_size vm.kmem_size_max
> vm.kmem_size: 2061496320
> vm.kmem_size_max: 3865468109
>
> I assume your 16GB system would default to even larger numbers.  What values
> do you get without forcing anything in loader.conf?

Nope, I get 419430400 (i.e. 400M) on all the machines without anything
in loader.conf - what version of FreeBSD are you running to get those
numbers ? I thought that 1536M was the absolute maximum for kmem
in versions of FreeBSD before 8-CURRENT.

-pete.