Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751476AbaJPHXB (ORCPT ); Thu, 16 Oct 2014 03:23:01 -0400 Received: from smtp1.it.da.ut.ee ([193.40.5.66]:33633 "EHLO smtp1.it.da.ut.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751001AbaJPHXA (ORCPT ); Thu, 16 Oct 2014 03:23:00 -0400 Date: Thu, 16 Oct 2014 10:22:56 +0300 (EEST) From: Meelis Roos To: David Miller cc: iamjoonsoo.kim@lge.com, linux-kernel@vger.kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, akpm@linux-foundation.org, linux-mm@kvack.org, sparclinux@vger.kernel.org Subject: Re: unaligned accesses in SLAB etc. In-Reply-To: <20141015.231154.1804074463934900124.davem@davemloft.net> Message-ID: References: <20141015.143624.941838991598108211.davem@davemloft.net> <20141015.231154.1804074463934900124.davem@davemloft.net> User-Agent: Alpine 2.11 (LRH 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Do you happen to have both gcc-4.9 and a previously working compiler > on these systems? If you do, we can build a kernel with gcc-4.9 and > then selectively compile certain failes with the older working > compiler to narrow down what compiles into something non-working with > gcc-4.9 Yes, I kept gcc-4.6 to help resolving it. [...] > Hopefully, this should be a simply matter of doing a complete build > with gcc-4.9, then removing the object file we want to selectively > build with the older compiler and then going: > > make CC="gcc-4.6" arch/sparc/mm/init_64.o > > then relinking with plain 'make'. > > If the build system rebuilds the object file on you when you try > to relink the final kernel image, we'll have to do some of this > by hand to make the test. Unfortunately it starts a full rebuild with plain make after compiling some files with gcc-4.6 - detects CC change? -- Meelis Roos (mroos@linux.ee) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/