From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756354Ab1AMAPX (ORCPT ); Wed, 12 Jan 2011 19:15:23 -0500 Received: from DMZ-MAILSEC-SCANNER-1.MIT.EDU ([18.9.25.12]:62295 "EHLO dmz-mailsec-scanner-1.mit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756460Ab1AMAPV convert rfc822-to-8bit (ORCPT ); Wed, 12 Jan 2011 19:15:21 -0500 X-Greylist: delayed 300 seconds by postgrey-1.27 at vger.kernel.org; Wed, 12 Jan 2011 19:15:20 EST X-AuditID: 1209190c-b7ba9ae0000009f8-a1-4d2e42eb8e89 Subject: Re: Power plug off / on - EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=600 Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Theodore Tso In-Reply-To: Date: Wed, 12 Jan 2011 19:09:51 -0500 Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8BIT Message-Id: References: To: "Luis R. Rodriguez" X-Mailer: Apple Mail (2.1082) X-Brightmail-Tracker: AAAAARcg5EE= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Jan 12, 2011, at 4:35 PM, Luis R. Rodriguez wrote: > When I yank my power chord off of my Thinkpad T61 running 2.6.37 I get > the following: > > [ 79.523778] Monitor-Mwait will be used to enter C-3 state > [ 81.195402] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=600 > > mcgrof@tux ~ $ mount| grep sda1 > /dev/sda1 on / type ext4 (rw,errors=remount-ro,commit=600) Sounds like you have some userspace script which is being triggered on the transition running on batteries, and it's doing a remount -o commit=600 to save power. Are you using laptop_mode by any chance? -- Ted