From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sarah Sharp Subject: Re: xHCI Express Card failure -- ACPI related? Date: Wed, 23 Feb 2011 08:23:34 -0800 Message-ID: <20110223162333.GA5660@xanatos> References: <20110223005513.GA2503@xanatos> <20110223015445.GA27481@srcf.ucam.org> <20110223145747.GA4627@xanatos> <20110223150922.GA9304@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga09.intel.com ([134.134.136.24]:6730 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753920Ab1BWQXh (ORCPT ); Wed, 23 Feb 2011 11:23:37 -0500 Content-Disposition: inline In-Reply-To: <20110223150922.GA9304@srcf.ucam.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: linux-usb@vger.kernel.org, linux-acpi@vger.kernel.org, Len Brown On Wed, Feb 23, 2011 at 03:09:22PM +0000, Matthew Garrett wrote: > On Wed, Feb 23, 2011 at 06:57:47AM -0800, Sarah Sharp wrote: > > On Wed, Feb 23, 2011 at 01:54:45AM +0000, Matthew Garrett wrote: > > > On Tue, Feb 22, 2011 at 04:55:13PM -0800, Sarah Sharp wrote: > > > > I'm having an issue with an xHCI (USB 3.0 host controller) Express Card. > > > > This card works fine on 2.6.37, but on 2.6.38-rc5, when I plug in the > > > > card, I get this output in dmesg: > > > > > > Is the controller associated with irq 23? > > > > I think it is, before the xHCI driver switches to MSI/MSIX. I'd have to > > disable MSI in 2.6.37 to confirm. > > Mm. Sounds like it's the hardware generating a legacy IRQ after you've > changed to MSI? Any chance this could be related to the irq > synchronisation patches? Could be related, but I'm not sure that's the issue. I don't see any messages at all from the xHCI driver or the USB core about the new host before the "nobody cared" message appears (although it turned out I have CONFIG_USB_XHCI_HCD_DEBUGGING turned off). AFAICT, the driver never gets loaded. But if the xHCI driver failed in its init sequence... I'll check. Sarah Sharp