From owner-freebsd-current Sun Feb 2 9:57:37 2003 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 95C5837B401 for ; Sun, 2 Feb 2003 09:57:36 -0800 (PST) Received: from gw.nectar.cc (gw.nectar.cc [208.42.49.153]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0AA0743F79 for ; Sun, 2 Feb 2003 09:57:36 -0800 (PST) (envelope-from nectar@celabo.org) Received: from opus.celabo.org (opus.celabo.org [10.0.1.111]) by gw.nectar.cc (Postfix) with ESMTP id 9D05645; Sun, 2 Feb 2003 11:57:35 -0600 (CST) Received: by opus.celabo.org (Postfix, from userid 1001) id 80AB858B0; Sun, 2 Feb 2003 11:54:56 -0600 (CST) Date: Sun, 2 Feb 2003 11:54:56 -0600 From: "Jacques A. Vidrine" To: Kevin Day Cc: freebsd-current@freebsd.org Subject: Re: Using 4.3-RELEASE's libc on 5.0 causes hard lockups Message-ID: <20030202175456.GC36076@opus.celabo.org> Mail-Followup-To: "Jacques A. Vidrine" , Kevin Day , freebsd-current@freebsd.org References: <5.1.1.5.2.20030202112759.0461fcc8@127.0.0.1> <5.1.1.5.2.20030202112759.0461fcc8@127.0.0.1> <5.1.1.5.2.20030202114819.044fd230@127.0.0.1> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5.1.1.5.2.20030202114819.044fd230@127.0.0.1> X-Url: http://www.celabo.org/ User-Agent: Mutt/1.5.1i-ja.1 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, Feb 02, 2003 at 11:53:22AM -0600, Kevin Day wrote: > Ok, I admit, no matter how it happened, an application using the wrong libc > is a bad thing. > > But, how are things supposed to work? Apps that need the old libc.so.4 will find it in /usr/lib/compat/libc.so.4 (or /usr/lib/libc.so.4 if you didn't remove it, for that matter). [...] > In any case, a system lockup or being able to crash other user's processes > just by having the wrong libc shouldn't be possible no matter what happens. Probably not, although if you have processes running as root and using the `wrong' libc, all bets are off. Cheers, -- Jacques A. Vidrine http://www.celabo.org/ NTT/Verio SME . FreeBSD UNIX . Heimdal Kerberos jvidrine@verio.net . nectar@FreeBSD.org . nectar@kth.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message