From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937428AbXG0PL5 (ORCPT ); Fri, 27 Jul 2007 11:11:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934460AbXG0PLt (ORCPT ); Fri, 27 Jul 2007 11:11:49 -0400 Received: from 3a.49.1343.static.theplanet.com ([67.19.73.58]:40642 "EHLO pug.o-hand.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933576AbXG0PLs (ORCPT ); Fri, 27 Jul 2007 11:11:48 -0400 Subject: Re: 2.6.23-rc1-mm1: reiser4 <-> lzo compile error From: Richard Purdie To: Edward Shishkin Cc: Adrian Bunk , Nitin Gupta , Andrew Morton , linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org In-Reply-To: <46A9E691.5080308@namesys.com> References: <20070725040304.111550f4.akpm@linux-foundation.org> <20070725182221.GG3572@stusta.de> <46A9E691.5080308@namesys.com> Content-Type: text/plain Date: Fri, 27 Jul 2007 16:11:28 +0100 Message-Id: <1185549088.6148.20.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.10.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2007-07-27 at 16:35 +0400, Edward Shishkin wrote: > Sorry, guys, I am not happy with the modified LZO: > the compressor tries to test bytes which are out of bounds. > > The attached module testlzo.c causes an oops in the second pass: > AFAIK, both, @m and @m_pos should be in [wrkmem, wrkmem + 64K); > I have attached trace.txt with their actual values. > > Not ready to migrate to this library. > > Any ideas? I can confirm its broken, it give an oops on ARM 2.6.23-rc1 too in the first pass. I guess the only real solution now is to compare the byte code from the new and original and find out where this problem has crept in from and check there are no others. I'll look into it but its going to take time. There goes my weekend :-( Richard