From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751033Ab2AAGPp (ORCPT ); Sun, 1 Jan 2012 01:15:45 -0500 Received: from mail-iy0-f174.google.com ([209.85.210.174]:50574 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750751Ab2AAGPm (ORCPT ); Sun, 1 Jan 2012 01:15:42 -0500 Date: Sat, 31 Dec 2011 22:15:32 -0800 (PST) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: "Ted Ts'o" , "Steinar H. Gunderson" cc: linux-kernel@vger.kernel.org Subject: Re: 3.2.0-rc5 oops in ext4 In-Reply-To: <20120101042345.GA22312@thunk.org> Message-ID: References: <20120101024754.GA14376@uio.no> <20120101042345.GA22312@thunk.org> User-Agent: Alpine 2.00 (LSU 1167 2008-08-23) 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 On Sat, 31 Dec 2011, Ted Ts'o wrote: > On Sun, Jan 01, 2012 at 03:47:58AM +0100, Steinar H. Gunderson wrote: > > Hi, > > > > During relatively heavy write load, my 3.2.0-rc5 kernel oopsed (after sixteen > > days of uptime, so this is not easily reproducible): > > This wasn't the whole kernel oops message. Can you get any lines > earlier than this? (Preferably beginning wit > "-----[ cut here ]-----"?) Nah, not necessary: RIP: 0010:[] [] _raw_spin_lock+0x9/0x20 [] create_empty_buffers+0x43/0xae [] ext4_discard_partial_page_buffers_no_lock+0x9d/0x3ee [ext4] [] ext4_da_write_end+0x231/0x2df [ext4] is one of the symptoms I was seeing - fixed in -rc6 by Yongqiang's 093e6e3666f47d29763a235b404c84ee47ba8bb0 ext4: correctly handle pages w/o buffers in ext4_discard_partial_buffers() Hugh