Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 21 Oct 2002 12:22:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 21 Oct 2002 12:22:02 -0400 Received: from zero.aec.at ([193.170.194.10]:31251 "EHLO zero.aec.at") by vger.kernel.org with ESMTP id ; Mon, 21 Oct 2002 12:22:01 -0400 Date: Mon, 21 Oct 2002 18:26:16 +0200 From: Andi Kleen To: Stephen Hemminger Cc: Andrea Arcangeli , Andi Kleen , Jeff Dike , john stultz , Linus Torvalds , lkml , george anzinger Subject: Re: [PATCH] linux-2.5.43_vsyscall_A0 Message-ID: <20021021162616.GA9368@averell> References: <20021019031002.GA16404@averell> <200210190450.XAA06161@ccure.karaya.com> <20021019041019.GI23930@dualathlon.random> <20021019044556.GA22201@averell> <20021019050139.GM23930@dualathlon.random> <1035215009.1209.1.camel@dell_ss3.pdx.osdl.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1035215009.1209.1.camel@dell_ss3.pdx.osdl.net> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 833 Lines: 19 On Mo n, Oct 21, 2002 at 05:43:29PM +0200, Stephen Hemminger wrote: > Would it be possible to allow UML to use mmap to put an alternative text > page at the fixed address with the UML appropriate version of the > vsyscall? nly with lots of special cases in the VM. vsyscall is currently located in the kernel fixing, giving user mmap access to kernel mappings would need quite some changes. Global sysctl is much easier and safer. As soon as x86-64 gets useful vsyscalls again I will implement it (as I said earlier it is currently turned off because of problems with the timers) -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/