From owner-cvs-src@FreeBSD.ORG Fri Jul 11 14:56:14 2003 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E9ADE37B401; Fri, 11 Jul 2003 14:56:14 -0700 (PDT) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 69A9543F3F; Fri, 11 Jul 2003 14:56:12 -0700 (PDT) (envelope-from peter@wemm.org) Received: from wemm.org (localhost [127.0.0.1]) by canning.wemm.org (Postfix) with ESMTP id 51C6F2A7EA; Fri, 11 Jul 2003 14:56:12 -0700 (PDT) (envelope-from peter@wemm.org) X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=) In-Reply-To: Date: Fri, 11 Jul 2003 14:56:12 -0700 From: Peter Wemm Message-Id: <20030711215612.51C6F2A7EA@canning.wemm.org> cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/amd64/include pmap.h vmparam.h X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jul 2003 21:56:15 -0000 Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= wrote: > Peter Wemm writes: > > Increase user VM space from 1/2TB (512GB) to 128TB. > > What's our file size limit these days? Thats a very good question. Last year, I was able to make Very Large sparse files on a ufs1 fs and mmap them to try and fill up the ia64 user VM. The 32 bit block numbers were the limit though. ufs2 should have no such problem itself, but if its living in a disklabel'ed drive, the physical limit for the partition is 1TB. If you use the raw disk without a label, or use gpt on the drive, that limit is gone too. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5