Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754384AbZJNFGJ (ORCPT ); Wed, 14 Oct 2009 01:06:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751141AbZJNFGI (ORCPT ); Wed, 14 Oct 2009 01:06:08 -0400 Received: from qw-out-2122.google.com ([74.125.92.27]:48010 "EHLO qw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750865AbZJNFGH (ORCPT ); Wed, 14 Oct 2009 01:06:07 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=D0lcidRNpdzhAvTai3hrEavL3Pal6C4tzPMIYdU9raQ827+fnGkxCBmSFcSrW4K6+n IejEmeATZofSyYDLrL6L2FB+E1FOCuPT7jdP8x79JquKko2A2hQPV9Z9pYrhyIJAr1rE DN2STKLbc/4wKCRRPYm9H9LomxH/JrGD+itr4= Date: Wed, 14 Oct 2009 01:04:56 -0400 From: tmhikaru@gmail.com To: linux-kernel@vger.kernel.org Subject: Linux 2.6.31.4 Message-ID: <20091014050456.GA5954@roll> References: <20091012231506.GA23794@kroah.com> <20091014041020.GA4340@roll> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091014041020.GA4340@roll> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2307 Lines: 54 I'm experiencing various problems which I'm seeing reproducably in both 2.6.31.2 and 2.6.31.4 after upgrading from 2.6.30.8. Most notably, and scary to me, is that I'm routinely seeing this I/O error message with different sector numbers whenever I try to use my usb hard drive. in syslog: Oct 13 21:55:49 roll kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through Oct 13 21:55:49 roll kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through Oct 13 21:55:49 roll kernel: sda1 Oct 13 21:55:49 roll kernel: sd 0:0:0:0: [sda] Assuming drive cache: write through Oct 13 21:56:20 roll kernel: end_request: I/O error, dev sda, sector 50334647 in messages: Oct 13 21:56:20 roll kernel: sd 0:0:0:0: [sda] Unhandled error code Oct 13 21:56:20 roll kernel: sd 0:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00 Now, this doesn't appear to affect anything so far as the filesystem doesn't even get set readonly. (It's ext4) ... And I just found out that for some reason the filesystem is set to continue on errors. I'm surprised, I thought the default for mke2fs was to set remount readonly. *sigh* I'm changing the settings for the filesystem now. In any case, these I/O error messages do *not* appear when I'm doing similar things on 2.6.30.8. Given that this usb drive is my backup hard drive, I've reason to be concerned - is this an *actual* error with the physical disk, is something funky with the kernel, or... what? Before I attempt to debug this further, I'd like to know what the error messages are being generated by, so I can find out just how concerned I should be. I'm going to assume, for the moment, that something is wrong with 2.6.31.2/4's ability to use my usb hard drive and that the backup I have on it is likely corrupt since I did not have the filesystem set to remount readonly on errors. I'm going to wipe it and remake the backup with 2.6.30.8. Please, let me know what's going on here. I need to know what the error messages mean - is this a physical failure of the hard drive, or what? Thank you, Tim McGrath -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/