From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 28 Jun 2001 22:52:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 28 Jun 2001 22:52:04 -0400 Received: from ip-33-237-104-152.anlai.com ([152.104.237.33]:23567 "EHLO exchsh01.viatech.com.cn") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Thu, 28 Jun 2001 22:51:52 -0400 Message-ID: <61F2703C314FD5118C0300010250D52E0580C0@exchsh01.viatech.com.cn> From: =?utf-8?B?RnJhbmsgWmh1IChTaGFuZ2hhaSk=?= To: =?utf-8?B?J0FsYW4gQ294Jw==?= , mikpe@csd.uu.se Cc: bernds@redhat.com, =?utf-8?B?RnJhbmsgWmh1IChTaGFuZ2hhaSk=?= , linux-kernel@vger.kernel.org, mikpe@csd.uu.se Subject: =?utf-8?B?UkU6IFBST0JMRU06SWxsZWdhbCBpbnN0cnVjdGlvbiB3aGVuIG1v?= =?utf-8?B?dW50IG5mcyBmaWxlIHN5c3RlbXMgdXNpbmc=?= Date: Fri, 29 Jun 2001 10:52:45 +0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ok. i just do another test.maybe meaningful. 1)no matter i select -march=i686 or -march=i386 the result are the same. 2)the server 192.168.0.254 (netboot) ,client 192.168.0.3 there are /usr ,/usr/local/ ,/home, /lib, /bin ....... on the server on the client A: mount -t nfs netboot:/usr /usr mount -t nfs netboot:/lib /lib mount -t nfs netboot:/bin /bin mount -t nfs netboot:/sbin /sbin Illegal instruction (core dumped) B:mount -t nfs netboot:/usr /1 mount -t nfs netboot:/lib /2 mount -t nfs netboot:/bin /3 mount -t nfs netboot:/sbin /4 mount ................... ok it seems that mount on the same mount point(/usr----/usr....) error occurs but on the different mount point(/usr------/1......) seems ok then i install a machine with (lower version distribution kernel 2.2.13)Bluepoint 1.0. there are no mount problems above. -----Original Message----- From: Alan Cox [mailto:alan@lxorguk.ukuu.org.uk] Sent: 2001年6月29日 7:12 To: mikpe@csd.uu.se Cc: alan@lxorguk.ukuu.org.uk; bernds@redhat.com; FrankZhu@viatech.com.cn; linux-kernel@vger.kernel.org; mikpe@csd.uu.se Subject: Re: PROBLEM:Illegal instruction when mount nfs file systems using > Here I have to disagree with you Alan. When you pass "-march=i686" to > gcc, you are _not_ saying "generate code for a CPUID family 6 CPU". > "-march=i686" actually means "target an Intel P6 family chip, given > what we currently know about them". The gcc info pages don't talk Which is fine. The Pentium Pro manual explicitly states that cmov may go away. So it is not based on what we know about the CPU, its based on not reading the documentation. It's a bug. -march=i6868 does not 'target an Intel P6 family chip, ...' It happens to work because the error in reading the docs was never triggered by intel removing cmov from a cpu as the reserved the right to do Alan