From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755924Ab1HWTZb (ORCPT ); Tue, 23 Aug 2011 15:25:31 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:46265 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755304Ab1HWTZZ convert rfc822-to-8bit (ORCPT ); Tue, 23 Aug 2011 15:25:25 -0400 MIME-Version: 1.0 In-Reply-To: <4E53FCF7.7060703@zytor.com> References: <4E52D280.3010107@zytor.com> <20110823000314.GW2203@ZenIV.linux.org.uk> <4E52EF2A.8060608@zytor.com> <20110823010146.GY2203@ZenIV.linux.org.uk> <20110823011312.GZ2203@ZenIV.linux.org.uk> <20110823021717.GA2203@ZenIV.linux.org.uk> <20110823061531.GC2203@ZenIV.linux.org.uk> <20110823164849.GF2203@ZenIV.linux.org.uk> <4E53FCF7.7060703@zytor.com> From: Linus Torvalds Date: Tue, 23 Aug 2011 12:24:22 -0700 Message-ID: Subject: Re: [uml-devel] SYSCALL, ptrace and syscall restart breakages (Re: [RFC] weird crap with vdso on uml/i386) To: "H. Peter Anvin" Cc: Al Viro , Andrew Lutomirski , Borislav Petkov , Ingo Molnar , "user-mode-linux-devel@lists.sourceforge.net" , Richard Weinberger , "linux-kernel@vger.kernel.org" , "mingo@redhat.com" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 23, 2011 at 12:18 PM, H. Peter Anvin wrote: > > We could drop that information in a metaregister.  It's not backward > compatible, but at least it will be obvious when that information is > available and not. Well, seriously, UML already looks at the word at "ip-2" for other reasons. So it isn't like there is any point in adding more support to just give you that information in another form. Linus From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1QvwbL-0005iX-Eq for user-mode-linux-devel@lists.sourceforge.net; Tue, 23 Aug 2011 19:25:31 +0000 Received: from smtp1.linux-foundation.org ([140.211.169.13]) by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1QvwbK-0002lz-L3 for user-mode-linux-devel@lists.sourceforge.net; Tue, 23 Aug 2011 19:25:31 +0000 Received: from mail-wy0-f175.google.com (mail-wy0-f175.google.com [74.125.82.175]) (authenticated bits=0) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id p7NJOivJ021051 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=FAIL) for ; Tue, 23 Aug 2011 12:24:46 -0700 Received: by wyf19 with SMTP id 19so516790wyf.34 for ; Tue, 23 Aug 2011 12:24:43 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4E53FCF7.7060703@zytor.com> References: <4E52D280.3010107@zytor.com> <20110823000314.GW2203@ZenIV.linux.org.uk> <4E52EF2A.8060608@zytor.com> <20110823010146.GY2203@ZenIV.linux.org.uk> <20110823011312.GZ2203@ZenIV.linux.org.uk> <20110823021717.GA2203@ZenIV.linux.org.uk> <20110823061531.GC2203@ZenIV.linux.org.uk> <20110823164849.GF2203@ZenIV.linux.org.uk> <4E53FCF7.7060703@zytor.com> From: Linus Torvalds Date: Tue, 23 Aug 2011 12:24:22 -0700 Message-ID: List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net Subject: Re: [uml-devel] SYSCALL, ptrace and syscall restart breakages (Re: [RFC] weird crap with vdso on uml/i386) To: "H. Peter Anvin" Cc: Andrew Lutomirski , "user-mode-linux-devel@lists.sourceforge.net" , Richard Weinberger , "linux-kernel@vger.kernel.org" , Borislav Petkov , "mingo@redhat.com" , Al Viro , Ingo Molnar On Tue, Aug 23, 2011 at 12:18 PM, H. Peter Anvin wrote: > > We could drop that information in a metaregister. =A0It's not backward > compatible, but at least it will be obvious when that information is > available and not. Well, seriously, UML already looks at the word at "ip-2" for other reasons. So it isn't like there is any point in adding more support to just give you that information in another form. Linus ---------------------------------------------------------------------------= --- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, = user administration capabilities and model configuration. Take = the hassle out of deploying and managing Subversion and the = tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel