From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752803AbXCEQ4L (ORCPT ); Mon, 5 Mar 2007 11:56:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752806AbXCEQ4K (ORCPT ); Mon, 5 Mar 2007 11:56:10 -0500 Received: from vms040pub.verizon.net ([206.46.252.40]:34784 "EHLO vms040pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752803AbXCEQ4J (ORCPT ); Mon, 5 Mar 2007 11:56:09 -0500 Date: Mon, 05 Mar 2007 11:55:38 -0500 From: Eric Buddington Subject: Re: USB misbehavior causes system hang In-reply-to: <20070305021728.4c36dd4b.akpm@linux-foundation.org> To: Andrew Morton Cc: ebuddington@wesleyan.edu, ebuddington@verizon.net, linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net Reply-to: ebuddington@wesleyan.edu Message-id: <20070305165529.GE28884@pool-71-123-121-36.spfdma.east.verizon.net> Organization: ECS Labs MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline References: <20070227140610.GC6850@pool-71-123-99-133.spfdma.east.verizon.net> <20070305021728.4c36dd4b.akpm@linux-foundation.org> User-Agent: Mutt/1.5.12-2006-07-14 X-Eric-conspiracy: there is no conspiracy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 05, 2007 at 02:17:28AM -0800, Andrew Morton wrote: > > On Tue, 27 Feb 2007 09:06:21 -0500 Eric Buddington wrote: > > 2.6.20-mm2 #1 Mon Feb 26 13:16:04 EST 2007 i686 unknown > > > > I have an external USB drive (WD MyBook 5000YS), which I use for backups. > > > > When I try to back up to it, it works for a while, but inevitably > > starts resetting like mad, gives I/O errors, and then (here's the > > problem), the softdog module reboots the system. > > > > --------------------------- > > scsi1 : SCSI emulation for USB Mass Storage devices > > input: Western Digital External HDD as /class/input/input8 > > input: USB HID v1.11 Device [Western Digital External HDD] on usb-0000:00:03.2-6 > > .2 > > scsi 1:0:0:0: Direct-Access WD 5000YS External 106a PQ: 0 ANSI: 4 > > SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB) > > sda: Write Protect is off > > sda: assuming drive cache: write through > > SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB) > > sda: Write Protect is off > > sda: assuming drive cache: write through > > sda: sda1 sda2 > > sd 1:0:0:0: Attached scsi disk sda > > sd 1:0:0:0: Attached scsi generic sg0 type 0 > > reiser4[pdflush(194)]: disable_write_barrier (fs/reiser4/wander.c:234)[zam-1055] > > : > > NOTICE: md1 does not support write barriers, using synchronous write instead. > > reiser4: sda2: found disk format 4.0.0. > > > > ---- (works fine here for a while, then:) ---------- > > > > usb 1-6.2: reset high speed USB device using ehci_hcd and address 36 > > usb 1-6.2: device descriptor read/64, error -110 > > usb 1-6.2: device descriptor read/64, error -110 > > usb 1-6.2: reset high speed USB device using ehci_hcd and address 36 > > usb 1-6.2: device descriptor read/64, error -110 > > usb 1-6.2: device descriptor read/64, error -110 > > usb 1-6.2: reset high speed USB device using ehci_hcd and address 36 > > usb 1-6.2: device descriptor read/8, error -110 > > usb 1-6.2: device descriptor read/8, error -110 > > usb 1-6.2: reset high speed USB device using ehci_hcd and address 36 > > usb 1-6.2: device descriptor read/8, error -110 > > usb 1-6.2: device descriptor read/8, error -110 > > sd 1:0:0:0: scsi: Device offlined - not ready after error recovery > > sd 1:0:0:0: SCSI error: return code = 0x00050000 > > end_request: I/O error, dev sda, sector 919931588 > > sd 1:0:0:0: rejecting I/O to offline device > > sd 1:0:0:0: SCSI error: return code = 0x00010000 > > end_request: I/O error, dev sda, sector 919931828 > > sd 1:0:0:0: rejecting I/O to offline device > > sd 1:0:0:0: rejecting I/O to offline device > > sd 1:0:0:0: rejecting I/O to offline device > > Does 2.6.20 do this? 2.6.21-rc1? 2.6.20-mm2 seems to be OK; I've been backing up to the disk for a few hours now, with no problem. -Eric