Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934763AbZJJCqX (ORCPT ); Fri, 9 Oct 2009 22:46:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934751AbZJJCqX (ORCPT ); Fri, 9 Oct 2009 22:46:23 -0400 Received: from gate.crashing.org ([63.228.1.57]:50179 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934748AbZJJCqW (ORCPT ); Fri, 9 Oct 2009 22:46:22 -0400 Subject: Re: USB serial regression 2.6.31.1 -> 2.6.31.2 (and 2.6.32-rc3) From: Benjamin Herrenschmidt To: Alan Stern Cc: Greg KH , "linux-kernel@vger.kernel.org" , "linux-usb@vger.kernel.org" , Hugh Blemings , "Rafael J. Wysocki" In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Date: Sat, 10 Oct 2009 13:45:20 +1100 Message-Id: <1255142720.2219.4.camel@pasglop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 718 Lines: 21 On Fri, 2009-10-09 at 21:56 -0400, Alan Stern wrote: > > > At the end, I think I yanked it out. > > This looks a lot like a hardware problem, such as bad USB cables. > Could you collect a usbmon trace for bus 4? It ought to show whether > this is the case or whether software is at fault. It works just fine with 2.6.31.1 It's a USB modem "stick", no cables involved. Same symptom with another stick from a co-worker. Both work fine on older kernels. Cheers, Ben. -- 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/