Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761235AbXKUK7a (ORCPT ); Wed, 21 Nov 2007 05:59:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755548AbXKUK7X (ORCPT ); Wed, 21 Nov 2007 05:59:23 -0500 Received: from rv-out-0910.google.com ([209.85.198.189]:18983 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755546AbXKUK7W (ORCPT ); Wed, 21 Nov 2007 05:59:22 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=JxtN/jmkmtCycvjVb2IlORCjI1zoFcC8wRldnx10tUl/KkdVuL4GTE2tOilCllpqhCxtfirpQsCQ1z44oXNfPBdi9rUqMsfb2qTHO570YBHrl9MFPZFMsK9c/ci/AA5trDI+AzWN89fI3nhBKnzXSeAkU3XauHmONp6ekqy0A2U= Message-ID: Date: Wed, 21 Nov 2007 11:59:22 +0100 From: "Markus Rechberger" To: "Mark Lord" Subject: Re: USB deadlock after resume Cc: linux-kernel@vger.kernel.org, linux-usb-devel@lists.sourceforge.net, "Laurent Pinchart" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <4743B160.7060007@rtr.ca> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1277 Lines: 36 On 11/21/07, Markus Rechberger wrote: > On 11/21/07, Mark Lord wrote: > > Markus Rechberger wrote: > > > Hi, > > > > > > I'm looking at the linux uvc driver, and noticed after resuming my > > .. > > > > Pardon me.. what is the "uvc" driver? Which module/source file is that? > > > > http://linux-uvc.berlios.de/ it's not yet included in the kernel > sources although many distributions already ship it. > A "dry" run putting the device into sleep mode works fine (I added a > proc interface for calling those suspend/resume function). > it's not just usb_set_interface that hangs actually. It seems to hang at wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); in drivers/usb/core/urb.c after resuming. I disabled access to the usb subsystem in the uvc driver, although connecting any other usb storage fails too, just at the same point. The hardware is: 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 04) (8086:2658) Markus - 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/