From owner-freebsd-current@FreeBSD.ORG Sat Aug 2 02:55:26 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E690637B401; Sat, 2 Aug 2003 02:55:26 -0700 (PDT) Received: from mailman.zeta.org.au (mailman.zeta.org.au [203.26.10.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id 517F743FAF; Sat, 2 Aug 2003 02:55:25 -0700 (PDT) (envelope-from bde@zeta.org.au) Received: from gamplex.bde.org (katana.zip.com.au [61.8.7.246]) by mailman.zeta.org.au (8.9.3p2/8.8.7) with ESMTP id TAA21273; Sat, 2 Aug 2003 19:55:18 +1000 Date: Sat, 2 Aug 2003 19:55:17 +1000 (EST) From: Bruce Evans X-X-Sender: bde@gamplex.bde.org To: Julian Elischer In-Reply-To: Message-ID: <20030802195010.S2520@gamplex.bde.org> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: deischen@freebsd.org cc: David Xu cc: current@freebsd.org cc: Marcel Moolenaar Subject: Re: NVidia glx stuff dies in sysarch(I386_SET_LDT, ...) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Aug 2003 09:55:27 -0000 On Fri, 1 Aug 2003, Julian Elischer wrote: > On Fri, 1 Aug 2003, Julian Elischer wrote: > > I also noticed that if we disable the 'splat' mode, we'd break sysVR4 > > binary code as they do that.. (though it's #if 0'd out at the moment) > > not to mention linux (more important..) though I might add that that > code could do with rewriting to get rid of a lot of "stackgap" stuff. Even changing the semantics of i386_set_ldt() to support dynamic allocation may break ABI compatibility with Linux (not to mention both API and ABI compatibility with OtherBSD). I wondered about this when the change was proposed, but only had a quick look at an old version of Linux for API compatibility. Linux seem to have a different API. Bruce