From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755590Ab1ATMlZ (ORCPT ); Thu, 20 Jan 2011 07:41:25 -0500 Received: from rcsinet10.oracle.com ([148.87.113.121]:35372 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755560Ab1ATMlY (ORCPT ); Thu, 20 Jan 2011 07:41:24 -0500 Message-ID: <4D382DFA.8050806@oracle.com> Date: Thu, 20 Jan 2011 18:13:38 +0530 From: Gurudas Pai User-Agent: Thunderbird 2.0.0.5 (X11/20070719) MIME-Version: 1.0 To: Miklos Szeredi CC: hughd@google.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [BUG] kernel BUG at mm/truncate.c:479! on 2.6.37-rc8 References: <4D1AD935.1020504@oracle.com> <4D1C2E86.9000004@oracle.com> <4D37DAD7.3050100@oracle.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Miklos Szeredi wrote: > On Thu, 20 Jan 2011, Gurudas Pai wrote: >> Hi Hugh, >> >> Gurudas Pai wrote: >>>>> With 2.6.37-rc8 , run a fio test over nfs, with following jobfile, >>>>> and we >>>>> hit kernel bug. >>>> Have you tried the same test on earlier releases? >>>> I think the bug is old, yet only recently reported. >>> I tried with 2.6.36.2 , even there it is panicing. >>> >>> >>>> This NFS-triggered kernel BUG at mm/truncate.c:479 sounds very like >>>> the FUSE-triggered kernel BUG at mm/truncate.c:475 on 2.6.36.1 for >>>> which Miklos posted a patch on 14 December. Please give his patch >>>> (below) a try and let us know if it fixes the issue for you - thanks. >>> Issue fixed with the patch, Thanks :) >> Is this patch included in mainline ? > > Apparently not. I'll update the patch and send it to Andrew shorty. Thanks Miklos. Please let me know if further testing is required, happy to test. Thanks, -Guru