From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755577Ab3A3VPl (ORCPT ); Wed, 30 Jan 2013 16:15:41 -0500 Received: from sylphide-consulting.com ([82.225.154.2]:60786 "EHLO freehackers.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754217Ab3A3VPi (ORCPT ); Wed, 30 Jan 2013 16:15:38 -0500 Message-ID: <51098D75.70500@freehackers.org> Date: Wed, 30 Jan 2013 22:15:33 +0100 From: Thomas Capricelli Organization: freehackers.org User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130121 Thunderbird/17.0.2 MIME-Version: 1.0 To: Rob Landley CC: linux-kernel@vger.kernel.org Subject: Re: Kernel failing to boot when compressed with bzip2 References: <1359554289.32505.58@driftwood> In-Reply-To: <1359554289.32505.58@driftwood> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 30/01/2013 14:58, Rob Landley ha scritto: > > On 01/20/2013 03:55:05 PM, Thomas Capricelli wrote: > >> So my guess is that there's something badly broken in the bzip2 kernel >> decompressing code.. ? There's both a regression between kernel 3.6 and >> 3.7, and a problem with gcc-4.7. > Worked For Me. I note that I built with gcc 4.2.1 and binutils 2.17 > (the last GPLv2 releases), and it's for i686 I guess that's the main point : my bug appears on AMD64, not i686, and i can trigger It with either gcc-4.6 or gcc-4.7. I'm pretty sure it still works with such an old gcc as 4.2.1. I use binutils 2.23.1 but i doubt it matters here. Again, amd64 using vanilla kernel releases (3.x.y) linux-3.6 with gcc-4.6 : ok linux-3.6 with gcc-4.7 : fail linux-3.7 with gcc-4.6 : fail linux-3.7 with gcc-4.7 : fail I've had this BUNZIP2 option for very long, so i'm sure it was working well with previous versions of both gcc and linux kernel. greetings, Thomas -- Thomas Capricelli http://www.freehackers.org/thomas/