From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759408AbXGKHHH (ORCPT ); Wed, 11 Jul 2007 03:07:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753047AbXGKHG5 (ORCPT ); Wed, 11 Jul 2007 03:06:57 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:59818 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751221AbXGKHG4 (ORCPT ); Wed, 11 Jul 2007 03:06:56 -0400 Date: Wed, 11 Jul 2007 00:05:58 -0700 (PDT) From: Linus Torvalds To: Stefano Rivoir cc: Linux Kernel Mailing List Subject: Re: Linux 2.6.22 released In-Reply-To: <46947ADF.4080605@gts.it> Message-ID: References: <4693327E.6000006@gts.it> <46947ADF.4080605@gts.it> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 11 Jul 2007, Stefano Rivoir wrote: > > Ok, the guilty bit is gcc: in my box, compiling kernel with gcc 4.2.x (which > is installed on my debian/sid) turns into a hang (in init, seemingly, maybe > not even in kernel itself), while gcc-4.1 is allright. > > Probably it's something I had to know before... but the light lit when gcc > crashed when compiling 2.6.22-git1... Ok, I guess I should be happy, but gcc bugs end up being an absolute *horror* to try to debug, and there is always a slight possibility that it isn't a gcc bug, but some real kernel bug that is just hidden by the old code generation. It happens occasionally. The fact that gcc itself crashed when trying to compile something does seem to indicate that it's one of those cases where it's unquestionably an outright gcc bug, and we don't have to worry about some dodgy kernel code. Which is a bit of a relief, but still, the gcc bug needs to be found, preferably before that thing actually gets released. I'm hoping your Debian/sid gcc version is some very experimental known-buggy one, and not something that people _expect_ to be solid and work well? Linus