From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422929AbWLUKBE (ORCPT ); Thu, 21 Dec 2006 05:01:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422932AbWLUKBE (ORCPT ); Thu, 21 Dec 2006 05:01:04 -0500 Received: from eazy.amigager.de ([213.239.192.238]:52548 "EHLO eazy.amigager.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422929AbWLUKBD (ORCPT ); Thu, 21 Dec 2006 05:01:03 -0500 Date: Thu, 21 Dec 2006 11:01:01 +0100 From: Tino Keitel To: linux-kernel@vger.kernel.org Subject: Re: How to interpret PM_TRACE output Message-ID: <20061221100101.GA23386@dose.home.local> Mail-Followup-To: linux-kernel@vger.kernel.org References: <20061213212258.GA9879@dose.home.local> <20061216085748.GE4049@ucw.cz> <20061219085616.GA2053@dose.home.local> <20061220161903.GB4261@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061220161903.GB4261@ucw.cz> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 20, 2006 at 16:19:04 +0000, Pavel Machek wrote: > Hi! > > > > > I tried PM_TRACE to find the driver that breaks resume from suspend. > > > > I got working resume until I switched to the sk98lin driver > > > > (because sky2 doesn't support wake on LAN). That's why I was quite sure that > > > > sk98lin is the culprit, but I tried PM_TRACE anymay. > > > > > > See Doc*/power/*. > > > > There is a nice mixture of documentation about swusp, video stuff, > > developer documentation, and one short paragraph about PM_TRACE that > > tells me nothing new. Could you point me to the documentation part that > > you are referring to, and that tells me what to do if PM_TRACE shows > > the usb device but the failure only occurs when I load the sk98lin > > driver? > > Hmmm, so it fails somewhere in usb only if sk98lin is loaded? If you > unload it again, resume works? Are usb interrupts shared? Where Yes, it works with sky2. Yes, the USB device that is reported to fail by PM_TRACE shares the interrupt with eth0, which is sk98lin (see my original posting in this thread). > exactly in the usb does it fail? I don't know, all I have is the PM_TRACE output. Meanwhile, tried to remove uhci_hcd before suspend, and wakeup works then. However, my DVB-T box is dead after resume (reloading the driver doesn't work, only unplug/replug the device helps). It works with suspend to disk, though. Regards, Tino