Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753189AbaJTS57 (ORCPT ); Mon, 20 Oct 2014 14:57:59 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:37679 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753158AbaJTS55 (ORCPT ); Mon, 20 Oct 2014 14:57:57 -0400 Date: Mon, 20 Oct 2014 14:57:46 -0400 (EDT) Message-Id: <20141020.145746.428441452740929005.davem@davemloft.net> To: mroos@linux.ee Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org Subject: Re: unaligned accesses in SLAB etc. From: David Miller In-Reply-To: References: <20141019.003209.2286339581794609198.davem@davemloft.net> X-Mailer: Mew version 6.5 on Emacs 24.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.7 (shards.monkeyblade.net [149.20.54.216]); Mon, 20 Oct 2014 11:57:56 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Meelis Roos Date: Sun, 19 Oct 2014 10:07:03 +0300 (EEST) >> From: Meelis Roos >> Date: Fri, 17 Oct 2014 00:38:20 +0300 (EEST) >> >> > arch/sparc/kernel/setup_64.c is the only culprit. >> > >> > Attached are 2 versions of the object file as of v3.17-rc1-22-g480cadc >> > that I tested. >> >> Just to confirm, a gcc-4.9 compiled kernel works if just setup_64.c >> is built with gcc-4.6, is that correct? > > Yes, exactly. Just an update, I have an environment where I can perfectly reproduce this. I have a gcc-4.9 SVN built that compiles kernels which crash the same way it does for you. I'll let you know when I make more progress. -- 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/