From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932217AbWFMSV5 (ORCPT ); Tue, 13 Jun 2006 14:21:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932212AbWFMSV5 (ORCPT ); Tue, 13 Jun 2006 14:21:57 -0400 Received: from [198.99.130.12] ([198.99.130.12]:5764 "EHLO saraswathi.solana.com") by vger.kernel.org with ESMTP id S932217AbWFMSV4 (ORCPT ); Tue, 13 Jun 2006 14:21:56 -0400 Date: Tue, 13 Jun 2006 14:21:29 -0400 From: Jeff Dike To: Alberto Bertogli Cc: user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Blaisorblade Subject: Re: [UML] Problems building and running 2.6.17-rc4 on x86-64 Message-ID: <20060613182129.GA4619@ccure.user-mode-linux.org> References: <20060514182541.GA4980@gmail.com> <20060613145718.GB9729@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060613145718.GB9729@gmail.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 13, 2006 at 11:57:18AM -0300, Alberto Bertogli wrote: > I just wanted to report that this went away when trying 2.6.17-rc6 as a > host. It also works fine as a guest (after I patch it with > http://user-mode-linux.sourceforge.net/work/current/2.6/2.6.17-rc4/patches/jmpbuf > so that it builds). > > Besides, the random segfault problems I had with previous guests > versions also seem to be fixed. These two problems are related, and were both on the host. Bodo Stroesser reported a while ago that ptrace, by returning via sysret rather than iret, could cause register corruption when tracing sigreturn. The UML crash seems to have been caused by the fix to that problem. Jeff