From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f172.google.com (mail-pd0-f172.google.com [209.85.192.172]) by kanga.kvack.org (Postfix) with ESMTP id 2BC7B6B0037 for ; Mon, 7 Apr 2014 13:16:49 -0400 (EDT) Received: by mail-pd0-f172.google.com with SMTP id p10so6868192pdj.3 for ; Mon, 07 Apr 2014 10:16:48 -0700 (PDT) Received: from aserp1040.oracle.com (aserp1040.oracle.com. [141.146.126.69]) by mx.google.com with ESMTPS id bs8si8655387pad.340.2014.04.07.10.16.47 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 07 Apr 2014 10:16:48 -0700 (PDT) Message-ID: <5342DD7B.5070202@oracle.com> Date: Mon, 07 Apr 2014 13:16:43 -0400 From: Sasha Levin MIME-Version: 1.0 Subject: Re: mm: slub: gpf in deactivate_slab References: <53208A87.2040907@oracle.com> <5331A6C3.2000303@oracle.com> <20140325165247.GA7519@dhcp22.suse.cz> <5331B9C8.7080106@oracle.com> <53321CB6.5050706@oracle.com> <53401F56.5090507@oracle.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Lameter Cc: Michal Hocko , Pekka Enberg , Matt Mackall , "linux-mm@kvack.org" , LKML On 04/07/2014 01:13 PM, Christoph Lameter wrote: > On Sat, 5 Apr 2014, Sasha Levin wrote: > >> Unfortunately I've been unable to reproduce the issue to get more debug info >> out of it. However, I've hit something that seems to be somewhat similar >> to that: > > Could you jsut run with "slub_debug" on the kernel command line to get us > more diagnostics? Could be memory corruption. I was running it with "slub_debug=FZPU" when I reported both errors, there was no other information beyond the traces in the log. Thanks, Sasha -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755677AbaDGRQ4 (ORCPT ); Mon, 7 Apr 2014 13:16:56 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:38298 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755661AbaDGRQx (ORCPT ); Mon, 7 Apr 2014 13:16:53 -0400 Message-ID: <5342DD7B.5070202@oracle.com> Date: Mon, 07 Apr 2014 13:16:43 -0400 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Christoph Lameter CC: Michal Hocko , Pekka Enberg , Matt Mackall , "linux-mm@kvack.org" , LKML Subject: Re: mm: slub: gpf in deactivate_slab References: <53208A87.2040907@oracle.com> <5331A6C3.2000303@oracle.com> <20140325165247.GA7519@dhcp22.suse.cz> <5331B9C8.7080106@oracle.com> <53321CB6.5050706@oracle.com> <53401F56.5090507@oracle.com> In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/07/2014 01:13 PM, Christoph Lameter wrote: > On Sat, 5 Apr 2014, Sasha Levin wrote: > >> Unfortunately I've been unable to reproduce the issue to get more debug info >> out of it. However, I've hit something that seems to be somewhat similar >> to that: > > Could you jsut run with "slub_debug" on the kernel command line to get us > more diagnostics? Could be memory corruption. I was running it with "slub_debug=FZPU" when I reported both errors, there was no other information beyond the traces in the log. Thanks, Sasha