From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Intel ICH9M bug : sata unusable with usbserial Date: Mon, 28 Feb 2011 16:16:18 +0100 Message-ID: <20110228151618.GA16322@htj.dyndns.org> References: <20110228140149.GA18189@frolo.macqel> <20110228150553.66d02bc7@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:54096 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754510Ab1B1PQX (ORCPT ); Mon, 28 Feb 2011 10:16:23 -0500 Received: by bwz15 with SMTP id 15so3724879bwz.19 for ; Mon, 28 Feb 2011 07:16:22 -0800 (PST) Content-Disposition: inline In-Reply-To: <20110228150553.66d02bc7@lxorguk.ukuu.org.uk> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Philippe De Muyter , linux-ide@vger.kernel.org On Mon, Feb 28, 2011 at 03:05:53PM +0000, Alan Cox wrote: > > The running running processes keep running, and the GPS listening process > > continues to get messages from the USB GPS receiver each second. > > > > Is that a known (an fixed) problem ? > > No and I doubt it is a general problem or it would have been reported > long ago. Looks like your hard drive just dropped offline - power > problems perhaps ? Looks more like a irq problem to me. Maybe the USB device causes screaming IRQ and SATA controller is sharing IRQ with the USB host? Phillippe, can you please post the output 'cat /proc/interrupts' and full output of dmesg after the failure? Thanks. -- tejun