From owner-freebsd-arch Fri Feb 23 15:57:36 2001 Delivered-To: freebsd-arch@freebsd.org Received: from dragon.nuxi.com (trang.nuxi.com [209.152.133.57]) by hub.freebsd.org (Postfix) with ESMTP id E498737B491 for ; Fri, 23 Feb 2001 15:57:33 -0800 (PST) (envelope-from obrien@NUXI.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.11.2/8.11.1) id f1NNvWC73255; Fri, 23 Feb 2001 15:57:32 -0800 (PST) (envelope-from obrien) Date: Fri, 23 Feb 2001 15:57:31 -0800 From: "David O'Brien" To: Jordan Hubbard Cc: arch@FreeBSD.ORG Subject: Re: sysctl kern.fallback_elf_brand Message-ID: <20010223155731.A72750@dragon.nuxi.com> Reply-To: arch@FreeBSD.ORG References: <20010223042641.B2539@dragon.nuxi.com> <20010223144211.I1899@ringworld.oblivion.bg> <20010223050512.G2539@dragon.nuxi.com> <20010223075951D.jkh@osd.bsdi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010223075951D.jkh@osd.bsdi.com>; from jkh@osd.bsdi.com on Fri, Feb 23, 2001 at 07:59:51AM -0800 X-Operating-System: FreeBSD 5.0-CURRENT Organization: The NUXI BSD group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, Feb 23, 2001 at 07:59:51AM -0800, Jordan Hubbard wrote: > > I'm turning off having a default in -CURRENT as we speak, until it can be > > done right. I plan to MFC this for 4.3-R. Such reboots are > > unacceptable. > > Erm, have you actually managed to *verify* such a reboot yet? I'd > like to see this with my own eyes (or, as an acceptable substitute, > yours :) before anything is done to "fix" it. I've actually never been happy enough with the heuristics used and fragility of the code in picking an ABI to run a binary under to trust it to having a fall-back default. So this seemed like a good time to change things since the Security Team is backing the change. I personally don't think there should be a default fall-back. If we added code to search for the .note.ABI-tag a lot more binaries would be properly recognized. -- -- David (obrien@FreeBSD.org) GNU is Not Unix / Linux Is Not UniX To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message