From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f172.google.com (mail-ob0-f172.google.com [209.85.214.172]) by kanga.kvack.org (Postfix) with ESMTP id 8BC216B0035 for ; Tue, 24 Dec 2013 14:28:02 -0500 (EST) Received: by mail-ob0-f172.google.com with SMTP id gq1so7038724obb.31 for ; Tue, 24 Dec 2013 11:28:02 -0800 (PST) Received: from aserp1040.oracle.com (aserp1040.oracle.com. [141.146.126.69]) by mx.google.com with ESMTPS id so9si19111816oeb.140.2013.12.24.11.28.01 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 24 Dec 2013 11:28:01 -0800 (PST) Message-ID: <52B9E037.1050606@oracle.com> Date: Tue, 24 Dec 2013 14:27:51 -0500 From: Sasha Levin MIME-Version: 1.0 Subject: Re: mm: kernel BUG at include/linux/swapops.h:131! References: <52B1C143.8080301@oracle.com> <52B871B2.7040409@oracle.com> <20131224025127.GA2835@lge.com> <52B8F8F6.1080500@oracle.com> <20131224060705.GA16140@lge.com> In-Reply-To: <20131224060705.GA16140@lge.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Joonsoo Kim Cc: Andrew Morton , "linux-mm@kvack.org" , khlebnikov@openvz.org, LKML , Wanpeng Li , Bob Liu On 12/24/2013 01:07 AM, Joonsoo Kim wrote: > On Mon, Dec 23, 2013 at 10:01:10PM -0500, Sasha Levin wrote: >> On 12/23/2013 09:51 PM, Joonsoo Kim wrote: >>> On Mon, Dec 23, 2013 at 12:24:02PM -0500, Sasha Levin wrote: >>>>> Ping? >>>>> >>>>> I've also Cc'ed the "this page shouldn't be locked at all" team. >>> Hello, >>> >>> I can't find the reason of this problem. >>> If it is reproducible, how about bisecting? >> >> While it reproduces under fuzzing it's pretty hard to bisect it with >> the amount of issues uncovered by trinity recently. >> >> I can add any debug code to the site of the BUG if that helps. > > Good! > It will be helpful to add dump_page() in migration_entry_to_page(). [ 3800.520039] page:ffffea0000245800 count:12 mapcount:4 mapping:ffff88001d0c3668 index:0x7de [ 3800.521404] page flags: 0x1fffff8038003c(referenced|uptodate|dirty|lru|swapbacked|unevictable|mlocked) [ 3800.522585] pc:ffff88001ed91600 pc->flags:2 pc->mem_cgroup:ffffc90000c0a000 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