From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 27 Jun 2001 17:03:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 27 Jun 2001 17:03:41 -0400 Received: from neon-gw.transmeta.com ([209.10.217.66]:62728 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id ; Wed, 27 Jun 2001 17:03:24 -0400 Message-ID: <3B3A4A09.F7D8D5BA@transmeta.com> Date: Wed, 27 Jun 2001 14:03:05 -0700 From: "H. Peter Anvin" Organization: Transmeta Corporation X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.5-pre1-zisofs i686) X-Accept-Language: en, sv, no, da, es, fr, ja MIME-Version: 1.0 To: "Albert D. Cahalan" CC: "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] User chroot In-Reply-To: <200106272055.f5RKtur331470@saturn.cs.uml.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "Albert D. Cahalan" wrote: > > BTW, it is way wrong that /dev/zero should be needed at all. > Such use is undocumented ("man zero", "man mmap") anyway, and > AFAIK one should use mmap() with MAP_ANON instead. Not that > the documentation on MAP_ANON is any good either, but at least > the mere existence of the flag is mentioned. > RTFM(POSIX). -hpa