From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonas Schwertfeger Subject: Re: System hangs when using USB 3.0 HD with on Ubuntu Date: Tue, 30 Mar 2010 09:44:51 +0200 Message-ID: <59ca64281003300044g53ae5170xaf198bf99964fc36@mail.gmail.com> References: <4BAD275A.7050903@interlog.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:57180 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750904Ab0C3HpO convert rfc822-to-8bit (ORCPT ); Tue, 30 Mar 2010 03:45:14 -0400 In-Reply-To: <4BAD275A.7050903@interlog.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: dgilbert@interlog.com Cc: Alan Stern , Sarah Sharp , linux-usb@vger.kernel.org, USB Storage List , Matthew Dharm , linux-scsi@vger.kernel.org On Fri, Mar 26, 2010 at 11:30 PM, Douglas Gilbert wrote: >> Booting into a minimal userspace environment (for example, with >> init=3D/bin/bash) might prove this. >> >> No doubt the reason the drive fails to respond is because it can't h= andle >> these commands and gets fatally confused. > > The ATA commands seem to be: > =A0 IDENTIFY DEVICE =A0(via the ATA_12 tunnel) > =A0 SET FEATURES =A0 =A0 (via the ATA_16 tunnel) > =A0 IDENTIFY DEVICE =A0(via the ATA_16 tunnel) > > The last one fails but that could be caused by > the second last one. Doesn't look like smartd. > My money would be on udev. Doug was right. I switched into runlevel 1 and connected the drive. Same errors as before. Then, I unplugged it, stopped the udev daemon and plugged it back in. Voila, I was able to manually mount the drive with no issues. Where do we go from here? Does anyone know how to debug udev? -Jonas -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html