From owner-freebsd-questions@FreeBSD.ORG Tue Jun 8 07:15:26 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8BF7A16A4CE for ; Tue, 8 Jun 2004 07:15:26 +0000 (GMT) Received: from ylpvm29.prodigy.net (ylpvm29-ext.prodigy.net [207.115.57.60]) by mx1.FreeBSD.org (Postfix) with ESMTP id C720643D2D for ; Tue, 8 Jun 2004 07:15:25 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (adsl-63-207-60-35.dsl.lsan03.pacbell.net [63.207.60.35])i587FCnV030709; Tue, 8 Jun 2004 03:15:23 -0400 Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 0E5B451955; Tue, 8 Jun 2004 00:15:12 -0700 (PDT) Date: Tue, 8 Jun 2004 00:15:11 -0700 From: Kris Kennaway To: Odhiambo Washington , freebsd-questions@freebsd.org Message-ID: <20040608071511.GA82021@xor.obsecurity.org> References: <20040608053424.GB28733@ns2.wananchi.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="sdtB3X0nJg68CQEu" Content-Disposition: inline In-Reply-To: <20040608053424.GB28733@ns2.wananchi.com> User-Agent: Mutt/1.4.2.1i Subject: Re: virtual memory allocation X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jun 2004 07:15:26 -0000 --sdtB3X0nJg68CQEu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jun 08, 2004 at 08:34:24AM +0300, Odhiambo Washington wrote: > My colleague is trying to find the maximum amount of virtual > memory that FreeBSD is able to allocate to a program. > He's trying 4*1020*1024*1024 for kern.maxdsiz and FreeBSD > fries up. On i386 the CPU can only address 4GB of memory, including memory allocated to the kernel, so you can't go this high (except maybe if you use PAE, but you still can't go above 4GB). I think about 2GB is the limit on i386 without special tuning. Kris --sdtB3X0nJg68CQEu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAxWd/Wry0BWjoQKURAooIAJ4+SVEdwvW/R5qntH3okTv6RilDxwCglXCv S0aW9FcWSR8zdincE/fSXoE= =iihP -----END PGP SIGNATURE----- --sdtB3X0nJg68CQEu--