From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-f178.google.com (mail-lb0-f178.google.com [209.85.217.178]) by kanga.kvack.org (Postfix) with ESMTP id 09E506B006E for ; Thu, 16 Oct 2014 16:11:52 -0400 (EDT) Received: by mail-lb0-f178.google.com with SMTP id w7so3422797lbi.23 for ; Thu, 16 Oct 2014 13:11:52 -0700 (PDT) Received: from smtp2.it.da.ut.ee (smtp2.it.da.ut.ee. [2001:bb8:2002:500:20f:1fff:fe04:1bbb]) by mx.google.com with ESMTP id r1si36404775lar.58.2014.10.16.13.11.50 for ; Thu, 16 Oct 2014 13:11:51 -0700 (PDT) Date: Thu, 16 Oct 2014 23:11:49 +0300 (EEST) From: Meelis Roos Subject: Re: unaligned accesses in SLAB etc. In-Reply-To: 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 list , cl@linux.com, penberg@kernel.org, rientjes@google.com, akpm@linux-foundation.org, linux-mm@kvack.org, sparclinux@vger.kernel.org > > 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? Figured out from make V=1 how to call gcc-4.6 directly, so far my bisection shows that it one or probably more of arch/sparc/kernel/*.c but probably more than 1 - 2 halfs of it both failed. Still bisecting. -- 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