From owner-freebsd-hackers Sat Mar 17 14:36:46 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id 5DD4C37B718 for ; Sat, 17 Mar 2001 14:36:43 -0800 (PST) (envelope-from des@ofug.org) Received: (from des@localhost) by flood.ping.uio.no (8.9.3/8.9.3) id XAA75161; Sat, 17 Mar 2001 23:36:37 +0100 (CET) (envelope-from des@ofug.org) X-URL: http://www.ofug.org/~des/ X-Disclaimer: The views expressed in this message do not necessarily coincide with those of any organisation or company with which I am or have been affiliated. To: Jordan Hubbard Cc: clash@tasam.com, bright@wintelcom.net, ianc@ednet.co.uk, freebsd-hackers@FreeBSD.ORG Subject: Re: Greater than 2GB per process References: <20010311204130.N18351@fw.wintelcom.net> <003701c0aaaf$a4566ce0$dc02010a@fireduck.com> <20010312012528D.jkh@osd.bsdi.com> From: Dag-Erling Smorgrav Date: 17 Mar 2001 23:36:36 +0100 In-Reply-To: Jordan Hubbard's message of "Mon, 12 Mar 2001 01:25:28 -0800" Message-ID: Lines: 20 User-Agent: Gnus/5.0802 (Gnus v5.8.2) Emacs/20.4 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Jordan Hubbard writes: > Well, that single 4GB of address space is divided up into kernel data > structures, which are in the address space of the process but subject > to various levels of MMU-provided memory protection, and the process' > own "user data." I believe the break is currently set in the middle > at 2GB, and various attempts to adjust it more aggressively (in user > data's favor) have been interesting but ultimately also proved to > break things like BSD/OS binaries, which have their own assumptions > about the setting of the break. Ahem. The other way around, actually (we increased KVM space from 256 MB to 1 GB - not 2 GB as you claim). And the problem with legacy BSDI binaries (newer ones don't have this problem) was fixed a long time ago, in 3.0 (before 3.0-RELEASE). DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message