From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261954AbVFUOQf (ORCPT ); Tue, 21 Jun 2005 10:16:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261831AbVFUOOb (ORCPT ); Tue, 21 Jun 2005 10:14:31 -0400 Received: from postfix4-2.free.fr ([213.228.0.176]:48105 "EHLO postfix4-2.free.fr") by vger.kernel.org with ESMTP id S261980AbVFUOJQ (ORCPT ); Tue, 21 Jun 2005 10:09:16 -0400 Message-ID: <42B81F82.2020509@unice.fr> Date: Tue, 21 Jun 2005 16:09:06 +0200 From: XIAO Gang Organization: =?ISO-8859-1?Q?Universit=E9_de_Nice_-_Sophia_Anti?= =?ISO-8859-1?Q?polis?= User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225 X-Accept-Language: en, fr, zh-CN, zh-TW MIME-Version: 1.0 To: Jeff Dike CC: linux-kernel@vger.kernel.org Subject: Re: UML mode panick under 2.6.12 References: <42B7C0FA.8070409@unice.fr> <20050621130319.GA4510@ccure.user-mode-linux.org> In-Reply-To: <20050621130319.GA4510@ccure.user-mode-linux.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeff Dike wrote: >On Tue, Jun 21, 2005 at 09:25:46AM +0200, XIAO Gang wrote: > > >>I am unable to run UML mode (i386) under 2.6.12: the execution gives the >>following messages. >> >>--------------------------------------------------------------------------------------------- >> >> > > > >>Checking that ptrace can change system call numbers...<0>Kernel panic - >>not syncing: Segfault with no mm >> >> > >Can you try backing out the use-fork-instead-of-clone patch? Ben LaHaise >reported that caused problems for him. > > Not wanting to bother trimming things out, I have just copied arch/um/kernel/process.c from that in 2.6.10 then recompile. And everything works fine. So the problem is there, but I don't know how exactly. -- XIAO Gang (~{P$8U~}) xiao@unice.fr home page: pcmath126.unice.fr/xiao.html