From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753334Ab0BUVh6 (ORCPT ); Sun, 21 Feb 2010 16:37:58 -0500 Received: from tulikuusama.dnainternet.net ([83.102.40.132]:50637 "EHLO tulikuusama.dnainternet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752990Ab0BUVh5 (ORCPT ); Sun, 21 Feb 2010 16:37:57 -0500 X-Spam-Flag: NO X-Spam-Score: 0 From: Anssi Hannula To: Oliver Neukum Subject: Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang Date: Sun, 21 Feb 2010 23:37:53 +0200 User-Agent: KMail/1.13.0 (Linux/2.6.33-desktop-0.rc8.1mnb; KDE/4.4.0; x86_64; ; ) Cc: Alan Stern , Matthew Garrett , dvomlehn@cisco.com, gregkh@suse.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <201002201803.41594.anssi.hannula@iki.fi> <201002201919.10674.oliver@neukum.org> In-Reply-To: <201002201919.10674.oliver@neukum.org> MIME-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201002212337.53470.anssi.hannula@iki.fi> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On lauantai 20 helmikuu 2010 20:19:10 Oliver Neukum wrote: > 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"? "on" > > > 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? No. -- Anssi Hannula