Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161200AbXAMDFd (ORCPT ); Fri, 12 Jan 2007 22:05:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161201AbXAMDFc (ORCPT ); Fri, 12 Jan 2007 22:05:32 -0500 Received: from eazy.amigager.de ([213.239.192.238]:48045 "EHLO eazy.amigager.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161200AbXAMDFc (ORCPT ); Fri, 12 Jan 2007 22:05:32 -0500 Date: Sat, 13 Jan 2007 04:05:28 +0100 From: Tino Keitel To: Pavel Machek Cc: Luming Yu , Adrian Bunk , Lee Revell , linux-kernel@vger.kernel.org Subject: Re: 2.6.20-rc3 regression: suspend to RAM broken on Mac mini Core Duo Message-ID: <20070113030528.GA8269@dose.home.local> Mail-Followup-To: Pavel Machek , Luming Yu , Adrian Bunk , Lee Revell , linux-kernel@vger.kernel.org References: <20070107151744.GA9799@dose.home.local> <1168194194.18788.63.camel@mindpipe> <20070107200453.GA3227@thinkpad.home.local> <20070107222706.GA6092@thinkpad.home.local> <20070107234445.GM20714@stusta.de> <20070108210428.GA7199@dose.home.local> <3877989d0701090651m84d7f41v5d06e1638a7eb31d@mail.gmail.com> <20070109231655.GA5958@thinkpad.home.local> <20070112145025.GB7685@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070112145025.GB7685@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 Content-Length: 1914 Lines: 43 On Fri, Jan 12, 2007 at 14:50:25 +0000, Pavel Machek wrote: > Hi! > > > > >> > It didn't. It looks like it is unusable, becuase it isn't reliable in > > > >> > 2.6.20-rc3. > > > >> > > > >> Is this issue still present in -rc4? > > > > > > > >I used 2.6.20-rc4 in single user mode, and applied 2 patches from > > > >netdev to get wake on LAN support. This way I was able to set up an > > > >automatic suspend/resume loop. It looked good, but after e.g. 20 > > > >minutes, the resume hang. So it is reproduceable with 2.6.20-rc4. > > > >Unfortunately, I can not test the same with 2.6.18, as the wake on LAN > > > >patches need 2.6.20-rc. > > > > > > Hmm, do you mean this is the first time of this kind of testing? > > > Is this issue related to LAN driver? > > > I guess you should be able to set up an automatic suspend/resume loop > > > with /proc/acpi/alarm, and test similar with 2.6.18. > > > > Thanks for the hint. I just used /proc/acpi/alarm to set up a > > suspend/resume loop and did ca. 100 cycles in a row with 2.6.18.2 in > > single user mode, without a failure. > > Can you do similar test on 2.6.20 -- w/o network driver loaded (and > generaly minimum drivers?) I think I found the problem. In 2.6.18, I had a slightly different config. With 2.6.20-rc4, I had sucessful suspend/resume cycles without the USB DVB-T box attached. I tweaked the USB options a bit and activated some options (CONFIG_USB_SUSPEND, CONFIG_USB_MULTITHREAD_PROBE, CONFIG_USB_EHCI_SPLIT_ISO, CONFIG_USB_EHCI_ROOT_HUB_TT, CONFIG_USB_EHCI_TT_NEWSCHED) and now I can suspend/resume without hangs. At least I haven't seen one until now. Thanks for you patience and regards, Tino - 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/