From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756849Ab0BTST2 (ORCPT ); Sat, 20 Feb 2010 13:19:28 -0500 Received: from smtp-out002.kontent.com ([81.88.40.216]:33979 "EHLO smtp-out002.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756805Ab0BTST0 (ORCPT ); Sat, 20 Feb 2010 13:19:26 -0500 From: Oliver Neukum To: Anssi Hannula Subject: Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang Date: Sat, 20 Feb 2010 19:19:10 +0100 User-Agent: KMail/1.12.2 (Linux/2.6.33-rc8-0.1-default; KDE/4.3.1; x86_64; ; ) Cc: Alan Stern , Matthew Garrett , dvomlehn@cisco.com, gregkh@suse.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <201002151408.27146.oliver@neukum.org> <201002201803.41594.anssi.hannula@iki.fi> In-Reply-To: <201002201803.41594.anssi.hannula@iki.fi> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201002201919.10674.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Samstag, 20. Februar 2010 17:03:41 schrieb Anssi Hannula: > > But something must kill your last URB. > > You are not using autosuspend are you? > > Don't know, usbcore has autosuspend=2 and the gobi device has autosuspend=2 > and supports_autosuspend=1. What is the content of "level"? > > Can load usbserial with "debug=1"? > > Here's the end of dmesg when running with that option: > http://stuff.onse.fi/gobi2000/gobi-regression.dmesg.log > > This is again with the gobi_loader with extra sleep added in the beginning. > Otherwise it hangs (which is the actual original problem). That log makes sure that the final cancellation comes from closing the file. Is that a log of a working run? Regards Oliver