From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759510AbYDBOjT (ORCPT ); Wed, 2 Apr 2008 10:39:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759354AbYDBOi7 (ORCPT ); Wed, 2 Apr 2008 10:38:59 -0400 Received: from rtr.ca ([76.10.145.34]:3478 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759332AbYDBOi5 (ORCPT ); Wed, 2 Apr 2008 10:38:57 -0400 Message-ID: <47F39A80.9090201@rtr.ca> Date: Wed, 02 Apr 2008 10:38:56 -0400 From: Mark Lord Organization: Real-Time Remedies Inc. User-Agent: Thunderbird 2.0.0.12 (X11/20080213) MIME-Version: 1.0 To: Oliver Neukum Cc: Pavel Machek , Linux Kernel , Greg KH , Andrew Morton , jikos@suse.cz, Alan Stern , linux-usb@vger.kernel.org Subject: Re: 2.6.25-rc7: Ugh. References: <47EBBD57.30902@rtr.ca> <200803312005.37804.oliver@neukum.org> <47F139C9.50803@rtr.ca> <200804021004.53453.oliver@neukum.org> <47F39A55.5070102@rtr.ca> In-Reply-To: <47F39A55.5070102@rtr.ca> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (CCing linux-usb again) (CCing Alan Stern on this sub-thread) Oliver Neukum wrote: > Am Montag, 31. März 2008 21:21:45 schrieb Mark Lord: >> Oliver Neukum wrote: >>> But if power is cut with newer kernels and older kernels retain it, something >>> must have changed. Can you undo the ACPI changes since the last working >>> kernel? >> .. >> >> No, that's no different. >> This notebook always cuts +5V from USB on suspend or poweroff. >> Regardless of kernel version. I don't know how common this is, >> but all of my notebooks here have always behaved this way, >> as have most (but not all) of the larger systems. >> >> The two most recent PCIe motherboards I have here >> do provide +5V standby power to USB, even when "OFF", >> much to my annoyance and to the detriment of this planet. > > Very well. > > Mark, can you get a sysrq-t trace of your whole system when USB goes > dead? And please enable CONFIG_USB_DEBUG. We need to do whether > khubd and ksuspend_usbd are in state D. .. Both of those things were already done, and results from the last time are attached to the bugzilla report: http://bugzilla.kernel.org/show_bug.cgi?id=10345 I'll be installing -rc8 today, and see what happens there. Cheers