From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964791AbVLMKMO (ORCPT ); Tue, 13 Dec 2005 05:12:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932599AbVLMKMO (ORCPT ); Tue, 13 Dec 2005 05:12:14 -0500 Received: from ns1.suse.de ([195.135.220.2]:57487 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S932597AbVLMKMM (ORCPT ); Tue, 13 Dec 2005 05:12:12 -0500 Date: Tue, 13 Dec 2005 11:11:53 +0100 From: Andi Kleen To: Jakub Jelinek Cc: Andrew Morton , ak@suse.de, mingo@elte.hu, dhowells@redhat.com, torvalds@osdl.org, hch@infradead.org, arjan@infradead.org, matthew@wil.cx, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation Message-ID: <20051213101152.GU23384@wotan.suse.de> References: <20051212161944.3185a3f9.akpm@osdl.org> <20051213075441.GB6765@elte.hu> <20051213075835.GZ15804@wotan.suse.de> <20051213004257.0f87d814.akpm@osdl.org> <20051213084926.GN23384@wotan.suse.de> <20051213010126.0832356d.akpm@osdl.org> <20051213010233.50fce969.akpm@osdl.org> <20051213100715.GH31785@devserv.devel.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051213100715.GH31785@devserv.devel.redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Guess > > #if __GNUC__ == 3 && __GNUC_MINOR__ < 3 > #error Your compiler is too buggy; it is known to miscompile kernels. > #error Known good compilers: 3.3, 3.4, 4.0 > #endif > > would be better. __GNUC__ < 2 will certainly be errored about in other > places and it is bad to suggest compilers that are no longer supported > as known good ones. Are there really any known serious miscompilation with 3.1/3.2? (I knew it used to miscompile some loops on x86-64, but I think I worked around all that) Preventing SLES9 and RHEL3 users from easily compiling new kernels isn't good. -Andi