From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760068Ab0JZQqz (ORCPT ); Tue, 26 Oct 2010 12:46:55 -0400 Received: from terminus.zytor.com ([198.137.202.10]:55986 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754809Ab0JZQqx (ORCPT ); Tue, 26 Oct 2010 12:46:53 -0400 Message-ID: <4CC705ED.1020105@zytor.com> Date: Tue, 26 Oct 2010 09:46:37 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Thunderbird/3.1.4 MIME-Version: 1.0 To: Andi Kleen CC: kvm@vger.kernel.org, avi@redhat.com, linux-kernel@vger.kernel.org Subject: Re: fyi: gcc33-hammer crashes when compiling kvm emulate.c References: <20101026123828.GA30434@basil.fritz.box> <4CC70333.80400@zytor.com> <20101026163748.GB29961@basil.fritz.box> In-Reply-To: <20101026163748.GB29961@basil.fritz.box> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/26/2010 09:37 AM, Andi Kleen wrote: >> We have said 3.4 minimum for x86 for a long time now, and have an RFC > > Ok makes sense. I thought it was still at 3.3. I should retire > this 3.3 fossil anyways, it's really only for old compat testing. > > I don't remember seeing a warning -- aren't there supposed to be warnings > for unsupported compilers? > Not unless they are actively known to break. People get huffy about it because even if it is known to have problems it doesn't break *their* particular configuration. I'm getting to be of the opinion that people who compile modern kernels with ancient compilers and expect it to work are suffering from some particular kind of insanity -- it's nothing the distros do. The only exception are embedded people who compile with the latest 3.4 gcc; they have explained they do so because newer gccs have too many dependencies (the actual compiler, not the generated code) and for speed. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.