Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752783AbaJPUQr (ORCPT ); Thu, 16 Oct 2014 16:16:47 -0400 Received: from smtp2.it.da.ut.ee ([193.40.5.67]:42177 "EHLO smtp2.it.da.ut.ee" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751637AbaJPUQq (ORCPT ); Thu, 16 Oct 2014 16:16:46 -0400 Date: Thu, 16 Oct 2014 23:16:44 +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: <20141016.160742.1639247937393238792.davem@redhat.com> Message-ID: References: <20141014.173246.921084057467310731.davem@davemloft.net> <20141016.160742.1639247937393238792.davem@redhat.com> 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 > > scripts/Makefile.build:352: recipe for target 'sound/modules.order' failed > > make[1]: *** [sound/modules.order] Bus error > > make[1]: *** Deleting file 'sound/modules.order' > > Makefile:929: recipe for target 'sound' failed > > I just reproduced this on my Sun Blade 2500, so it can trigger on UltraSPARC-IIIi > systems too. My bisection led to the folloowing commit but it seems irrelevant (I have no sun4v on these machines): 4ccb9272892c33ef1c19a783cfa87103b30c2784 is the first bad commit commit 4ccb9272892c33ef1c19a783cfa87103b30c2784 Author: bob picco Date: Tue Sep 16 09:26:47 2014 -0400 sparc64: sun4v TLB error power off events However, the following chunk sound slightly suspicious: + if (fault_code & FAULT_CODE_BAD_RA) + goto do_sigbus; + because SIGNUS is what I got. For some machines, it killed chekroot during startup, for some shells under some circumstances, for some sshd. -- 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/