From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-la0-f41.google.com (mail-la0-f41.google.com [209.85.215.41]) by kanga.kvack.org (Postfix) with ESMTP id 676646B0069 for ; Thu, 16 Oct 2014 03:22:59 -0400 (EDT) Received: by mail-la0-f41.google.com with SMTP id pn19so2365324lab.14 for ; Thu, 16 Oct 2014 00:22:58 -0700 (PDT) Received: from smtp1.it.da.ut.ee (mailhost6-1.ut.ee. [2001:bb8:2002:500::46]) by mx.google.com with ESMTP id j10si33418130laf.95.2014.10.16.00.22.57 for ; Thu, 16 Oct 2014 00:22:57 -0700 (PDT) Date: Thu, 16 Oct 2014 10:22:56 +0300 (EEST) From: Meelis Roos 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> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: 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 > 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org