From owner-freebsd-stable@FreeBSD.ORG Sun Mar 1 03:10:13 2009 Return-Path: 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 51C671065672 for ; Sun, 1 Mar 2009 03:10:13 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email1.allantgroup.com (email1.emsphone.com [199.67.51.115]) by mx1.freebsd.org (Postfix) with ESMTP id 088C18FC0C for ; Sun, 1 Mar 2009 03:10:12 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by email1.allantgroup.com (8.14.0/8.14.0) with ESMTP id n213ACEI019952 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 28 Feb 2009 21:10:12 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (localhost [127.0.0.1]) by dan.emsphone.com (8.14.3/8.14.3) with ESMTP id n213A6jI027403 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 28 Feb 2009 21:10:11 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.3/8.14.3/Submit) id n213A1I2027384; Sat, 28 Feb 2009 21:10:01 -0600 (CST) (envelope-from dan) Date: Sat, 28 Feb 2009 21:10:01 -0600 From: Dan Nelson To: Pete French Message-ID: <20090301031001.GB3465@dan.emsphone.com> References: <20090228230127.GA3465@dan.emsphone.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-OS: FreeBSD 7.1-STABLE User-Agent: Mutt/1.5.19 (2009-01-05) X-Virus-Scanned: ClamAV version 0.94.1, clamav-milter version 0.94.1 on email1.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (email1.allantgroup.com [199.67.51.78]); Sat, 28 Feb 2009 21:10:12 -0600 (CST) X-Scanned-By: MIMEDefang 2.45 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Mar 2009 03:10:13 -0000 In the last episode (Mar 01), Pete French said: > > 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. I'm running 7-STABLE as of Feb 26 or so. Commit r187466 on Jan 20 bumped up kmem_size_max on amd64 to 3.6GB: http://svn.freebsd.org/viewvc/base?view=revision&revision=187466 -- Dan Nelson dnelson@allantgroup.com